• Re: Power cuts hit TfL services

    From Peter Able@stuck@home.com to uk.transport.london,uk.railway on Wed Jul 16 08:51:11 2025
    From Newsgroup: uk.transport.london

    On 15/07/2025 18:55, Muttley@DastardlyHQ.org wrote:
    On 15 May 2025 11:01:43 GMT
    Marland <gemehabal@btinternet.co.uk> wibbled:
    <Muttley@DastardlyHQ.org> wrote:
    On Wed, 14 May 2025 21:57:41 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 14:10, Tweed wrote:
    Wind has managed 40% this month. It may well be that wind is currently >>>>> artificially constrained so we donrCOt have a repeat of the Spanish
    problem.
    Both wind and solar tend to be followers of grid frequency, ie their >>>>> electronics look at the frequency and match it. Conventional plant sustains

    the frequency by virtue of the inertia of the generators. If you donrCOt >> keep

    enough inertial generation the system trips out in the event of a fault and

    a sudden dip of frequency. The renewables notice the dip, see it is out of
    spec and turn off.

    Another way to overcome this is to convert the AC from the turbines to >>>> DC when frequency does not pose a problem. This is done with the new

    No reason the turbines couldn't produce DC directly,




    Has technology moved on enough to allow brushless Dynamos for that sort of >> application?

    https://www.amazon.co.uk/Permanent-Brushless-Generator-48V60V800W1000W1100W1200W-Motor-1000w/dp/B0CNZ6CGQ8



    Mind you, that's a pretty special item. I quote from the above link:

    Colour: 1000w
    Engine type: 4 Stroke
    Ignition system type: Magneto
    Frequency: 50 Hz
    --
    PA
    --

    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Muttley@Muttley@DastardlyHQ.org to uk.transport.london,uk.railway on Wed Jul 16 11:22:00 2025
    From Newsgroup: uk.transport.london

    On Wed, 16 Jul 2025 08:51:11 +0100
    Peter Able <stuck@home.com> wibbled:
    On 15/07/2025 18:55, Muttley@DastardlyHQ.org wrote:
    On 15 May 2025 11:01:43 GMT
    Marland <gemehabal@btinternet.co.uk> wibbled:
    <Muttley@DastardlyHQ.org> wrote:
    On Wed, 14 May 2025 21:57:41 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 14:10, Tweed wrote:
    Wind has managed 40% this month. It may well be that wind is currently >>>>>> artificially constrained so we donrCOt have a repeat of the Spanish
    problem.
    Both wind and solar tend to be followers of grid frequency, ie their >>>>>> electronics look at the frequency and match it. Conventional plant >sustains

    the frequency by virtue of the inertia of the generators. If you donrCOt >>> keep

    enough inertial generation the system trips out in the event of a fault >and

    a sudden dip of frequency. The renewables notice the dip, see it is out >of
    spec and turn off.

    Another way to overcome this is to convert the AC from the turbines to >>>>> DC when frequency does not pose a problem. This is done with the new

    No reason the turbines couldn't produce DC directly,




    Has technology moved on enough to allow brushless Dynamos for that sort of >>> application?

    https://www.amazon.co.uk/Permanent-Brushless-Generator-48V60V800W1000W1100W1200
    W-Motor-1000w/dp/B0CNZ6CGQ8



    Mind you, that's a pretty special item. I quote from the above link:

    Colour: 1000w
    Engine type: 4 Stroke
    Ignition system type: Magneto
    Frequency: 50 Hz

    Looks like someone fucked up the data. Probably wouldn't buy from them if
    they can't even get the basics correct.

    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Peter Able@stuck@home.com to uk.transport.london,uk.railway on Wed Jul 16 14:35:31 2025
    From Newsgroup: uk.transport.london

    On 16/07/2025 12:22, Muttley@DastardlyHQ.org wrote:
    On Wed, 16 Jul 2025 08:51:11 +0100
    Peter Able <stuck@home.com> wibbled:
    On 15/07/2025 18:55, Muttley@DastardlyHQ.org wrote:
    On 15 May 2025 11:01:43 GMT
    Marland <gemehabal@btinternet.co.uk> wibbled:
    <Muttley@DastardlyHQ.org> wrote:
    On Wed, 14 May 2025 21:57:41 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 14:10, Tweed wrote:
    Wind has managed 40% this month. It may well be that wind is currently >>>>>>> artificially constrained so we donrCOt have a repeat of the Spanish >>>> problem.
    Both wind and solar tend to be followers of grid frequency, ie their >>>>>>> electronics look at the frequency and match it. Conventional plant
    sustains

    the frequency by virtue of the inertia of the generators. If you donrCOt
    keep

    enough inertial generation the system trips out in the event of a fault >> and

    a sudden dip of frequency. The renewables notice the dip, see it is out >> of
    spec and turn off.

    Another way to overcome this is to convert the AC from the turbines to >>>>>> DC when frequency does not pose a problem. This is done with the new >>>>>
    No reason the turbines couldn't produce DC directly,




    Has technology moved on enough to allow brushless Dynamos for that sort of
    application?


    https://www.amazon.co.uk/Permanent-Brushless-Generator-48V60V800W1000W1100W1200
    W-Motor-1000w/dp/B0CNZ6CGQ8



    Mind you, that's a pretty special item. I quote from the above link:

    Colour: 1000w
    Engine type: 4 Stroke
    Ignition system type: Magneto
    Frequency: 50 Hz

    Looks like someone fucked up the data. Probably wouldn't buy from them if they can't even get the basics correct.

    Pretty typical of eBay items more technically complex than a matchstick.
    --
    PA
    --

    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Roland Perry@roland@perry.uk to uk.transport.london,uk.railway on Fri Jul 18 08:07:55 2025
    From Newsgroup: uk.transport.london

    In message <10564ls$79i3$1@dont-email.me>, at 17:55:08 on Tue, 15 Jul
    2025, Muttley@DastardlyHQ.org remarked:

    Has technology moved on enough to allow brushless Dynamos for that sort of >>application?

    https://www.amazon.co.uk/Permanent-Brushless-Generator-48V60V800W1000W1100W1200W
    -Motor-1000w/dp/B0CNZ6CGQ8

    Oh look! A split URL :(
    --
    Roland Perry
    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Tweed@usenet.tweed@gmail.com to uk.railway,uk.transport.london on Fri Jul 18 08:04:57 2025
    From Newsgroup: uk.transport.london

    Roland Perry <roland@perry.uk> wrote:
    In message <10564ls$79i3$1@dont-email.me>, at 17:55:08 on Tue, 15 Jul
    2025, Muttley@DastardlyHQ.org remarked:

    Has technology moved on enough to allow brushless Dynamos for that sort of >>> application?

    https://www.amazon.co.uk/Permanent-Brushless-Generator-48V60V800W1000W1100W1200W
    -Motor-1000w/dp/B0CNZ6CGQ8

    Oh look! A split URL :(

    Actually itrCOs not as presented by Amazon. They encode the space before
    -Motor correctly with %20. The %20 is perhaps a casualty of copy/paste.

    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Roland Perry@roland@perry.uk to uk.railway,uk.transport.london on Sat Jul 19 08:25:51 2025
    From Newsgroup: uk.transport.london

    In message <105cv79$1ukul$1@dont-email.me>, at 08:04:57 on Fri, 18 Jul
    2025, Tweed <usenet.tweed@gmail.com> remarked:
    Roland Perry <roland@perry.uk> wrote:
    In message <10564ls$79i3$1@dont-email.me>, at 17:55:08 on Tue, 15 Jul
    2025, Muttley@DastardlyHQ.org remarked:

    Has technology moved on enough to allow brushless Dynamos for that sort of
    application?


    https://www.amazon.co.uk/Permanent-Brushless-Generator-48V60V800W1000W >>>1100W1200W
    -Motor-1000w/dp/B0CNZ6CGQ8

    Oh look! A split URL :(

    Actually itrCOs not as presented by Amazon.

    Oddly enough, people here are having it presented "by Usenet", not
    Amazon.

    They encode the space before -Motor correctly with %20. The %20 is
    perhaps a casualty of copy/paste.

    Excuses, excuses.
    --
    Roland Perry
    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Recliner@recliner.usenet@gmail.com to uk.transport.london,uk.railway on Thu Jul 24 08:11:36 2025
    From Newsgroup: uk.transport.london

    Tweed <usenet.tweed@gmail.com> wrote:
    <Muttley@DastardlyHQ.org> wrote:
    On Mon, 12 May 2025 15:46:30 GMT
    Recliner <recliner.usenet@gmail.com> wibbled:
    https://www.telegraph.co.uk/news/2025/05/12/london-underground-power-cut-crippl
    es-tube-delays/

    4:27pm
    More London Tube and rail lines affected by power outages
    The effects of the power outage appear to be spreading across the Tube
    network.

    First heathrow now this. The power supply resilience in this country seems to
    be somewhere between dreadful and non existent.


    Put your distribution assets in the hands of monopoly private operators together with an ineffective regulator and you get this. Just like the
    water industry. The Heathrow transformer that caught fire was 57 years old.

    Follow-up on the cost of the Heathrow shutdown:

    Fire near Heathrow costs airport tens of millions of pounds

    https://www.thetimes.com/article/3a5337e6-e4ea-45a2-bdd0-cdc1c2f79b74?shareToken=662168dea7ab6cb5c2be40be736a078b

    ThatrCOs just the cost to the airport. I donrCOt suppose it includes the cost to the airlines, passengers and freight operators.
    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Coffee@martin.coffee@round-midnight.org.uk to uk.transport.london,uk.railway on Thu Jul 24 20:20:44 2025
    From Newsgroup: uk.transport.london

    On 24/07/2025 09:11, Recliner wrote:
    Tweed <usenet.tweed@gmail.com> wrote:
    <Muttley@DastardlyHQ.org> wrote:
    On Mon, 12 May 2025 15:46:30 GMT
    Recliner <recliner.usenet@gmail.com> wibbled:
    https://www.telegraph.co.uk/news/2025/05/12/london-underground-power-cut-crippl
    es-tube-delays/

    4:27pm
    More London Tube and rail lines affected by power outages
    The effects of the power outage appear to be spreading across the Tube >>>> network.

    First heathrow now this. The power supply resilience in this country seems to
    be somewhere between dreadful and non existent.


    Put your distribution assets in the hands of monopoly private operators
    together with an ineffective regulator and you get this. Just like the
    water industry. The Heathrow transformer that caught fire was 57 years old.

    Follow-up on the cost of the Heathrow shutdown:

    Fire near Heathrow costs airport tens of millions of pounds

    https://www.thetimes.com/article/3a5337e6-e4ea-45a2-bdd0-cdc1c2f79b74?shareToken=662168dea7ab6cb5c2be40be736a078b

    ThatrCOs just the cost to the airport. I donrCOt suppose it includes the cost to the airlines, passengers and freight operators.

    It's the airport's fault. They had three different supplies available
    but chose to take the risk of not installing equipment fully utilise them.
    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Recliner@recliner.usenet@gmail.com to uk.railway,uk.transport.london on Thu Jul 24 19:35:00 2025
    From Newsgroup: uk.transport.london

    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 24/07/2025 09:11, Recliner wrote:
    Tweed <usenet.tweed@gmail.com> wrote:
    <Muttley@DastardlyHQ.org> wrote:
    On Mon, 12 May 2025 15:46:30 GMT
    Recliner <recliner.usenet@gmail.com> wibbled:
    https://www.telegraph.co.uk/news/2025/05/12/london-underground-power-cut-crippl
    es-tube-delays/

    4:27pm
    More London Tube and rail lines affected by power outages
    The effects of the power outage appear to be spreading across the Tube >>>>> network.

    First heathrow now this. The power supply resilience in this country seems to
    be somewhere between dreadful and non existent.


    Put your distribution assets in the hands of monopoly private operators
    together with an ineffective regulator and you get this. Just like the
    water industry. The Heathrow transformer that caught fire was 57 years old. >>
    Follow-up on the cost of the Heathrow shutdown:

    Fire near Heathrow costs airport tens of millions of pounds

    https://www.thetimes.com/article/3a5337e6-e4ea-45a2-bdd0-cdc1c2f79b74?shareToken=662168dea7ab6cb5c2be40be736a078b

    ThatrCOs just the cost to the airport. I donrCOt suppose it includes the cost
    to the airlines, passengers and freight operators.

    It's the airport's fault. They had three different supplies available
    but chose to take the risk of not installing equipment fully utilise them.


    Yes, I agree. WhatrCOs more, they shut down the whole airport despite some parts being supplied throughout.

    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Tweed@usenet.tweed@gmail.com to uk.railway,uk.transport.london on Wed May 14 09:13:07 2025
    From Newsgroup: uk.transport.london

    Sam Wilson <ukr@dummy.wislons.fastmail.co.uk> wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas >>>>>>> fired
    base load stations. Then the fun will start.

    -aWould that be before or after the gas pipelines get fractured ?

    The West does have a worrying dependency on offshore infrastructure
    which is impractical to guard. The best we can hope for is to catch >>>>> and destroy a few submarines, but they are relatively cheap to replace >>>>> and Putin won't be crying over a few dead seamen.

    They donrCOt need submarines to damage seabed cables, and probably not >>>> pipelines either. Just have some random rCyneutralrCO ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore >>> are prohibited for anchoring or trawling activity.

    ItrCOs dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from
    shipping routes.

    And a friend who used to work in the power industry tells me that, like undersea comms cables in shallow water, the power cables are mostly buried.
    That mitigates the risk of accidental damage somewhat.

    Sam


    Funny how the anti renewable lobby have suddenly become concerned about undersea power cables but have never raised a concern about all those gas
    and oil pipelines in the North Sea. Half of our gas supplies come via
    undersea pipelines. Such pipelines are vulnerable, as has already been demonstrated in the Baltic.

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Clank@clank75@googlemail.com to uk.railway,uk.transport.london on Wed May 14 11:14:30 2025
    From Newsgroup: uk.transport.london

    On Tue, 13 May 2025 11:20:00 +0100, JMB99 wrote:

    On 13/05/2025 09:18, Muttley@DastardlyHQ.org wrote:
    One good thing this government has done is reduce the power of nimbies
    to block pretty much everything. Inland windfarms are everywhere in
    france and like pylons you barely notice them after a while.

    Certainly notice the inland Eagle Slicers as well as the offshore ones.
    They blight many views.

    The improve many more.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From ColinR@rail@greystane.shetland.co.uk to uk.railway,uk.transport.london on Wed May 14 12:24:06 2025
    From Newsgroup: uk.transport.london

    On 14/05/2025 08:26, Muttley@DastardlyHQ.org wrote:
    On Tue, 13 May 2025 22:15:15 +0100
    Bevan Price <bevanprice666@gmail.com> wibbled:
    On 13/05/2025 09:18, Muttley@DastardlyHQ.org wrote:
    On Mon, 12 May 2025 20:31:02 +0100
    Charles Ellson <charlesellson@btinternet.com> wibbled:
    On Mon, 12 May 2025 18:07:37 -0000 (UTC), Muttley@DastardlyHQ.org
    wrote:
    Wait until russian underwater mini subs start cutting the cables from the >>>>> windmills in the north sea once Millipede has closed down all our gas fired

    base load stations. Then the fun will start.

    Maybe someone should tell the nimbies who object to inland windfarms
    and coastal cables rather than overhead lines that they are helping
    Uncle Vlad?

    One good thing this government has done is reduce the power of nimbies to >>> block pretty much everything. Inland windfarms are everywhere in france and >>> like pylons you barely notice them after a while.


    Pylons and overhead wires are cheaper to install than underground power
    lines - but they are more susceptible to weather damage from the
    increasingly severe storms that are an inevitable consequence of global
    warming.**

    OK, and?

    Wind farms need wind and designed properly they could also operate in storms by dynamically feathering the prop but obviously that would cost more so
    they probably don't bother.



    That might improve, but only a little, on the UK average availability of
    24.5% in 2023. Data unfortunately does not distinguish between off for maintenance / not enough wind / too much wind / no grid availability so constraint payments are made.

    Constraint payments to suppliers/owners for not generating lecktrickery
    but we all pay for them to do nowt. I cannot see the justification for
    such payments!
    --
    Colin

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From ColinR@rail@greystane.shetland.co.uk to uk.railway,uk.transport.london on Wed May 14 12:27:00 2025
    From Newsgroup: uk.transport.london

    On 14/05/2025 10:13, Tweed wrote:
    Sam Wilson <ukr@dummy.wislons.fastmail.co.uk> wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas >>>>>>>> fired
    base load stations. Then the fun will start.

    -aWould that be before or after the gas pipelines get fractured ? >>>>>>
    The West does have a worrying dependency on offshore infrastructure >>>>>> which is impractical to guard. The best we can hope for is to catch >>>>>> and destroy a few submarines, but they are relatively cheap to replace >>>>>> and Putin won't be crying over a few dead seamen.

    They donrCOt need submarines to damage seabed cables, and probably not >>>>> pipelines either. Just have some random rCyneutralrCO ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore
    are prohibited for anchoring or trawling activity.

    ItrCOs dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from
    shipping routes.

    And a friend who used to work in the power industry tells me that, like
    undersea comms cables in shallow water, the power cables are mostly buried. >> That mitigates the risk of accidental damage somewhat.

    Sam


    Funny how the anti renewable lobby have suddenly become concerned about undersea power cables but have never raised a concern about all those gas
    and oil pipelines in the North Sea. Half of our gas supplies come via undersea pipelines. Such pipelines are vulnerable, as has already been demonstrated in the Baltic.


    One reason is that there are concerns the effect on fish stocks in the proximity of high power cables - such a concern does not exist with gas
    and oil lines (if they remain intact).
    --
    Colin

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From JMB99@mb@nospam.net to uk.railway,uk.transport.london on Wed May 14 12:47:08 2025
    From Newsgroup: uk.transport.london

    On 14/05/2025 12:14, Clank wrote:
    The improve many more.


    I have never seen anywhere where Eagle Slicers improve the view.




    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Muttley@Muttley@DastardlyHQ.org to uk.railway,uk.transport.london on Wed May 14 12:40:22 2025
    From Newsgroup: uk.transport.london

    On Wed, 14 May 2025 12:24:06 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 08:26, Muttley@DastardlyHQ.org wrote:
    Wind farms need wind and designed properly they could also operate in storms >> by dynamically feathering the prop but obviously that would cost more so
    they probably don't bother.



    That might improve, but only a little, on the UK average availability of >24.5% in 2023. Data unfortunately does not distinguish between off for

    As I write this is looks like 39% of the UKs leccy is coming from solar.
    Never seen it that high before, didn't think we had enough solar plants tbh. Wind 17%, and its reasonably windy today. Oh dear.

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Tweed@usenet.tweed@gmail.com to uk.railway,uk.transport.london on Wed May 14 12:55:30 2025
    From Newsgroup: uk.transport.london

    JMB99 <mb@nospam.net> wrote:
    On 14/05/2025 12:14, Clank wrote:
    The improve many more.


    I have never seen anywhere where Eagle Slicers improve the view.

    I think the vast wind farm just south of Glasgow is a majestic sight.

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Tweed@usenet.tweed@gmail.com to uk.railway,uk.transport.london on Wed May 14 13:10:02 2025
    From Newsgroup: uk.transport.london

    <Muttley@DastardlyHQ.org> wrote:
    On Wed, 14 May 2025 12:24:06 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 08:26, Muttley@DastardlyHQ.org wrote:
    Wind farms need wind and designed properly they could also operate in storms
    by dynamically feathering the prop but obviously that would cost more so >>> they probably don't bother.



    That might improve, but only a little, on the UK average availability of
    24.5% in 2023. Data unfortunately does not distinguish between off for

    As I write this is looks like 39% of the UKs leccy is coming from solar. Never seen it that high before, didn't think we had enough solar plants tbh. Wind 17%, and its reasonably windy today. Oh dear.



    Well IrCOm contributing 3kW of that solar output!

    Wind has managed 40% this month. It may well be that wind is currently artificially constrained so we donrCOt have a repeat of the Spanish problem. Both wind and solar tend to be followers of grid frequency, ie their electronics look at the frequency and match it. Conventional plant sustains
    the frequency by virtue of the inertia of the generators. If you donrCOt keep enough inertial generation the system trips out in the event of a fault and
    a sudden dip of frequency. The renewables notice the dip, see it is out of
    spec and turn off. This can be overcome by using vast battery banks to act
    as electronic inertia, but these are still being built. So at the moment we need a proportion of conventional rotating machine generation. Solar is
    hard to switch off as much of it is small generation without any remote disconnect capability (eg the system on my roof), so it will be wind that
    gets turned off in the event of too much of a proportion of renewable generation. If you look at yesterdayrCOs generation, as the sun went down the wind generation went up.

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Nick Finnigan@nix@genie.co.uk to uk.railway,uk.transport.london on Wed May 14 14:36:53 2025
    From Newsgroup: uk.transport.london

    On 14/05/2025 14:10, Tweed wrote:
    <Muttley@DastardlyHQ.org> wrote:
    On Wed, 14 May 2025 12:24:06 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 08:26, Muttley@DastardlyHQ.org wrote:
    Wind farms need wind and designed properly they could also operate in storms
    by dynamically feathering the prop but obviously that would cost more so >>>> they probably don't bother.


    That might improve, but only a little, on the UK average availability of >>> 24.5% in 2023. Data unfortunately does not distinguish between off for

    As I write this is looks like 39% of the UKs leccy is coming from solar.
    Never seen it that high before, didn't think we had enough solar plants tbh. >> Wind 17%, and its reasonably windy today. Oh dear.

    Well IrCOm contributing 3kW of that solar output!

    Wind has managed 40% this month. It may well be that wind is currently artificially constrained so we donrCOt have a repeat of the Spanish problem.

    We are also importing 5GW, so wind is probably not constrained.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Tweed@usenet.tweed@gmail.com to uk.railway,uk.transport.london on Wed May 14 13:53:35 2025
    From Newsgroup: uk.transport.london

    Nick Finnigan <nix@genie.co.uk> wrote:
    On 14/05/2025 14:10, Tweed wrote:
    <Muttley@DastardlyHQ.org> wrote:
    On Wed, 14 May 2025 12:24:06 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 08:26, Muttley@DastardlyHQ.org wrote:
    Wind farms need wind and designed properly they could also operate in storms
    by dynamically feathering the prop but obviously that would cost more so >>>>> they probably don't bother.


    That might improve, but only a little, on the UK average availability of >>>> 24.5% in 2023. Data unfortunately does not distinguish between off for

    As I write this is looks like 39% of the UKs leccy is coming from solar. >>> Never seen it that high before, didn't think we had enough solar plants tbh.
    Wind 17%, and its reasonably windy today. Oh dear.

    Well IrCOm contributing 3kW of that solar output!

    Wind has managed 40% this month. It may well be that wind is currently
    artificially constrained so we donrCOt have a repeat of the Spanish problem.

    We are also importing 5GW, so wind is probably not constrained.


    Not necessarily. Generation has to match demand and distribution geography. Thats why thererCOs all the fuss about new super grid lines. I think the DC import links also act as electronic inertia.

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Coffee@martin.coffee@round-midnight.org.uk to uk.railway,uk.transport.london on Wed May 14 20:11:43 2025
    From Newsgroup: uk.transport.london

    On 14/05/2025 10:05, Sam Wilson wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas >>>>>>> fired
    base load stations. Then the fun will start.

    -aWould that be before or after the gas pipelines get fractured ?

    The West does have a worrying dependency on offshore infrastructure
    which is impractical to guard. The best we can hope for is to catch >>>>> and destroy a few submarines, but they are relatively cheap to replace >>>>> and Putin won't be crying over a few dead seamen.

    They donrCOt need submarines to damage seabed cables, and probably not >>>> pipelines either. Just have some random rCyneutralrCO ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore >>> are prohibited for anchoring or trawling activity.

    ItrCOs dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from
    shipping routes.

    And a friend who used to work in the power industry tells me that, like undersea comms cables in shallow water, the power cables are mostly buried.
    That mitigates the risk of accidental damage somewhat.

    But not deliberate damage.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Coffee@martin.coffee@round-midnight.org.uk to uk.railway,uk.transport.london on Wed May 14 20:16:45 2025
    From Newsgroup: uk.transport.london

    On 14/05/2025 10:13, Tweed wrote:
    Sam Wilson <ukr@dummy.wislons.fastmail.co.uk> wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas >>>>>>>> fired
    base load stations. Then the fun will start.

    -aWould that be before or after the gas pipelines get fractured ? >>>>>>
    The West does have a worrying dependency on offshore infrastructure >>>>>> which is impractical to guard. The best we can hope for is to catch >>>>>> and destroy a few submarines, but they are relatively cheap to replace >>>>>> and Putin won't be crying over a few dead seamen.

    They donrCOt need submarines to damage seabed cables, and probably not >>>>> pipelines either. Just have some random rCyneutralrCO ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore
    are prohibited for anchoring or trawling activity.

    ItrCOs dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from
    shipping routes.

    And a friend who used to work in the power industry tells me that, like
    undersea comms cables in shallow water, the power cables are mostly buried. >> That mitigates the risk of accidental damage somewhat.

    Sam


    Funny how the anti renewable lobby have suddenly become concerned about undersea power cables but have never raised a concern about all those gas
    and oil pipelines in the North Sea. Half of our gas supplies come via undersea pipelines. Such pipelines are vulnerable, as has already been demonstrated in the Baltic.


    I've not seen public concerns about any undersea structure until recently.

    Personally speaking I think UK politicians should be taking steps to
    ensure the UK has sufficient electrical generation capacity to be self sufficient.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Tweed@usenet.tweed@gmail.com to uk.railway,uk.transport.london on Wed May 14 19:32:22 2025
    From Newsgroup: uk.transport.london

    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:13, Tweed wrote:
    Sam Wilson <ukr@dummy.wislons.fastmail.co.uk> wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas >>>>>>>>> fired
    base load stations. Then the fun will start.

    -aWould that be before or after the gas pipelines get fractured ? >>>>>>>
    The West does have a worrying dependency on offshore infrastructure >>>>>>> which is impractical to guard. The best we can hope for is to catch >>>>>>> and destroy a few submarines, but they are relatively cheap to replace >>>>>>> and Putin won't be crying over a few dead seamen.

    They donrCOt need submarines to damage seabed cables, and probably not >>>>>> pipelines either. Just have some random rCyneutralrCO ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore
    are prohibited for anchoring or trawling activity.

    ItrCOs dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from
    shipping routes.

    And a friend who used to work in the power industry tells me that, like
    undersea comms cables in shallow water, the power cables are mostly buried. >>> That mitigates the risk of accidental damage somewhat.

    Sam


    Funny how the anti renewable lobby have suddenly become concerned about
    undersea power cables but have never raised a concern about all those gas
    and oil pipelines in the North Sea. Half of our gas supplies come via
    undersea pipelines. Such pipelines are vulnerable, as has already been
    demonstrated in the Baltic.


    I've not seen public concerns about any undersea structure until recently.

    Personally speaking I think UK politicians should be taking steps to
    ensure the UK has sufficient electrical generation capacity to be self sufficient.


    How do you generate this electricity if the North Sea gas pipelines are shutdown?

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Coffee@martin.coffee@round-midnight.org.uk to uk.railway,uk.transport.london on Wed May 14 20:46:09 2025
    From Newsgroup: uk.transport.london

    On 14/05/2025 20:32, Tweed wrote:
    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:13, Tweed wrote:
    Sam Wilson <ukr@dummy.wislons.fastmail.co.uk> wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas
    fired
    base load stations. Then the fun will start.

    -aWould that be before or after the gas pipelines get fractured ? >>>>>>>>
    The West does have a worrying dependency on offshore infrastructure >>>>>>>> which is impractical to guard. The best we can hope for is to catch >>>>>>>> and destroy a few submarines, but they are relatively cheap to replace >>>>>>>> and Putin won't be crying over a few dead seamen.

    They donrCOt need submarines to damage seabed cables, and probably not >>>>>>> pipelines either. Just have some random rCyneutralrCO ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore
    are prohibited for anchoring or trawling activity.

    ItrCOs dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from
    shipping routes.

    And a friend who used to work in the power industry tells me that, like >>>> undersea comms cables in shallow water, the power cables are mostly buried.
    That mitigates the risk of accidental damage somewhat.

    Sam


    Funny how the anti renewable lobby have suddenly become concerned about
    undersea power cables but have never raised a concern about all those gas >>> and oil pipelines in the North Sea. Half of our gas supplies come via
    undersea pipelines. Such pipelines are vulnerable, as has already been
    demonstrated in the Baltic.


    I've not seen public concerns about any undersea structure until recently. >>
    Personally speaking I think UK politicians should be taking steps to
    ensure the UK has sufficient electrical generation capacity to be self
    sufficient.


    How do you generate this electricity if the North Sea gas pipelines are shutdown?


    Phase out using foreign for electricity generation and use a different fuel. --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Coffee@martin.coffee@round-midnight.org.uk to uk.railway,uk.transport.london on Wed May 14 20:46:31 2025
    From Newsgroup: uk.transport.london

    On 14/05/2025 20:32, Tweed wrote:
    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:13, Tweed wrote:
    Sam Wilson <ukr@dummy.wislons.fastmail.co.uk> wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas
    fired
    base load stations. Then the fun will start.

    -aWould that be before or after the gas pipelines get fractured ? >>>>>>>>
    The West does have a worrying dependency on offshore infrastructure >>>>>>>> which is impractical to guard. The best we can hope for is to catch >>>>>>>> and destroy a few submarines, but they are relatively cheap to replace >>>>>>>> and Putin won't be crying over a few dead seamen.

    They donrCOt need submarines to damage seabed cables, and probably not >>>>>>> pipelines either. Just have some random rCyneutralrCO ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore
    are prohibited for anchoring or trawling activity.

    ItrCOs dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from
    shipping routes.

    And a friend who used to work in the power industry tells me that, like >>>> undersea comms cables in shallow water, the power cables are mostly buried.
    That mitigates the risk of accidental damage somewhat.

    Sam


    Funny how the anti renewable lobby have suddenly become concerned about
    undersea power cables but have never raised a concern about all those gas >>> and oil pipelines in the North Sea. Half of our gas supplies come via
    undersea pipelines. Such pipelines are vulnerable, as has already been
    demonstrated in the Baltic.


    I've not seen public concerns about any undersea structure until recently. >>
    Personally speaking I think UK politicians should be taking steps to
    ensure the UK has sufficient electrical generation capacity to be self
    sufficient.


    How do you generate this electricity if the North Sea gas pipelines are shutdown?


    Phase out using foreign gas for electricity generation and use a
    different fuel.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Recliner@recliner.usenet@gmail.com to uk.railway,uk.transport.london on Wed May 14 19:53:30 2025
    From Newsgroup: uk.transport.london

    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 20:32, Tweed wrote:
    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:13, Tweed wrote:
    Sam Wilson <ukr@dummy.wislons.fastmail.co.uk> wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas
    fired
    base load stations. Then the fun will start.

    -aWould that be before or after the gas pipelines get fractured ? >>>>>>>>>
    The West does have a worrying dependency on offshore infrastructure >>>>>>>>> which is impractical to guard. The best we can hope for is to catch >>>>>>>>> and destroy a few submarines, but they are relatively cheap to replace
    and Putin won't be crying over a few dead seamen.

    They donrCOt need submarines to damage seabed cables, and probably not >>>>>>>> pipelines either. Just have some random rCyneutralrCO ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore
    are prohibited for anchoring or trawling activity.

    ItrCOs dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from
    shipping routes.

    And a friend who used to work in the power industry tells me that, like >>>>> undersea comms cables in shallow water, the power cables are mostly buried.
    That mitigates the risk of accidental damage somewhat.

    Sam


    Funny how the anti renewable lobby have suddenly become concerned about >>>> undersea power cables but have never raised a concern about all those gas >>>> and oil pipelines in the North Sea. Half of our gas supplies come via
    undersea pipelines. Such pipelines are vulnerable, as has already been >>>> demonstrated in the Baltic.


    I've not seen public concerns about any undersea structure until recently. >>>
    Personally speaking I think UK politicians should be taking steps to
    ensure the UK has sufficient electrical generation capacity to be self
    sufficient.


    How do you generate this electricity if the North Sea gas pipelines are
    shutdown?


    Phase out using foreign gas for electricity generation and use a
    different fuel.


    What about our gas? That also comes ashore by pipeline.

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From ColinR@rail@greystane.shetland.co.uk to uk.railway,uk.transport.london on Wed May 14 21:57:41 2025
    From Newsgroup: uk.transport.london

    On 14/05/2025 14:10, Tweed wrote:
    <Muttley@DastardlyHQ.org> wrote:
    On Wed, 14 May 2025 12:24:06 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 08:26, Muttley@DastardlyHQ.org wrote:
    Wind farms need wind and designed properly they could also operate in storms
    by dynamically feathering the prop but obviously that would cost more so >>>> they probably don't bother.



    That might improve, but only a little, on the UK average availability of >>> 24.5% in 2023. Data unfortunately does not distinguish between off for

    As I write this is looks like 39% of the UKs leccy is coming from solar.
    Never seen it that high before, didn't think we had enough solar plants tbh. >> Wind 17%, and its reasonably windy today. Oh dear.



    Well IrCOm contributing 3kW of that solar output!

    Wind has managed 40% this month. It may well be that wind is currently artificially constrained so we donrCOt have a repeat of the Spanish problem. Both wind and solar tend to be followers of grid frequency, ie their electronics look at the frequency and match it. Conventional plant sustains the frequency by virtue of the inertia of the generators. If you donrCOt keep enough inertial generation the system trips out in the event of a fault and
    a sudden dip of frequency. The renewables notice the dip, see it is out of spec and turn off.

    Another way to overcome this is to convert the AC from the turbines to
    DC when frequency does not pose a problem. This is done with the new
    Viking windfarm in Shetland, although the DC conversion is not for this purpose but to reduce losses in the 150 mile undersea section, converted
    back to AC in Caithness for putting into the national grid.

    Oh yes, and that windfarm was 17% available last year owing, to a large extent, that the Caithness to south infrastructure cannot handle that
    amount of power!
    --
    Colin


    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Graeme Wall@rail@greywall.demon.co.uk to uk.railway,uk.transport.london on Thu May 15 08:20:14 2025
    From Newsgroup: uk.transport.london

    On 14/05/2025 20:46, Coffee wrote:
    On 14/05/2025 20:32, Tweed wrote:
    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:13, Tweed wrote:
    Sam Wilson <ukr@dummy.wislons.fastmail.co.uk> wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the >>>>>>>>>>> cables from the
    windmills in the north sea once Millipede has closed down all >>>>>>>>>>> our gas
    fired
    base load stations. Then the fun will start.

    -a-aWould that be before or after the gas pipelines get fractured ? >>>>>>>>>
    The West does have a worrying dependency on offshore
    infrastructure
    which is impractical to guard.-a The best we can hope for is to >>>>>>>>> catch
    and destroy a few submarines, but they are relatively cheap to >>>>>>>>> replace
    and Putin won't be crying over a few dead seamen.

    They donrCOt need submarines to damage seabed cables, and probably >>>>>>>> not
    pipelines either. Just have some random rCyneutralrCO ship drag its >>>>>>>> anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables >>>>>>> come ashore
    are prohibited for anchoring or trawling activity.

    ItrCOs dated and Wired have started paywalling a lot of stuff so >>>>>>> you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from
    shipping routes.

    And a friend who used to work in the power industry tells me that,
    like
    undersea comms cables in shallow water, the power cables are mostly >>>>> buried.
    That mitigates the risk of accidental damage somewhat.

    Sam


    Funny how the anti renewable lobby have suddenly become concerned about >>>> undersea power cables but have never raised a concern about all
    those gas
    and oil pipelines in the North Sea. Half of our gas supplies come via
    undersea pipelines. Such pipelines are vulnerable, as has already been >>>> demonstrated in the Baltic.


    I've not seen public concerns about any undersea structure until
    recently.

    Personally speaking I think UK politicians should be taking steps to
    ensure the UK has sufficient electrical generation capacity to be self
    sufficient.


    How do you generate this electricity if the North Sea gas pipelines are
    shutdown?


    Phase out using foreign for electricity generation and use a different
    fuel.

    The whole point about the international interconnectors is that they
    work both ways: France supplies us during our peaks and we supply them
    during theirs. It's one reason why we won't switch to CET. That hour difference is very useful in staggering the loads.
    --
    Graeme Wall
    This account not read.


    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Ulf_Kutzner@Ulf.Kutzner@web.de to uk.railway,uk.transport.london on Thu May 15 07:59:52 2025
    From Newsgroup: uk.transport.london

    On Thu, 15 May 2025 7:20:14 +0000, Graeme Wall wrote:

    On 14/05/2025 20:46, Coffee wrote:
    On 14/05/2025 20:32, Tweed wrote:
    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:13, Tweed wrote:
    Sam Wilson <ukr@dummy.wislons.fastmail.co.uk> wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the >>>>>>>>>>>> cables from the
    windmills in the north sea once Millipede has closed down all >>>>>>>>>>>> our gas
    fired
    base load stations. Then the fun will start.

    -a-aWould that be before or after the gas pipelines get fractured ? >>>>>>>>>>
    The West does have a worrying dependency on offshore
    infrastructure
    which is impractical to guard.-a The best we can hope for is to >>>>>>>>>> catch
    and destroy a few submarines, but they are relatively cheap to >>>>>>>>>> replace
    and Putin won't be crying over a few dead seamen.

    They donrCOt need submarines to damage seabed cables, and probably >>>>>>>>> not
    pipelines either. Just have some random rCyneutralrCO ship drag its >>>>>>>>> anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables >>>>>>>> come ashore
    are prohibited for anchoring or trawling activity.

    ItrCOs dated and Wired have started paywalling a lot of stuff so >>>>>>>> you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from >>>>>>> shipping routes.

    And a friend who used to work in the power industry tells me that, >>>>>> like
    undersea comms cables in shallow water, the power cables are mostly >>>>>> buried.
    That mitigates the risk of accidental damage somewhat.

    Sam


    Funny how the anti renewable lobby have suddenly become concerned about >>>>> undersea power cables but have never raised a concern about all
    those gas
    and oil pipelines in the North Sea. Half of our gas supplies come via >>>>> undersea pipelines. Such pipelines are vulnerable, as has already been >>>>> demonstrated in the Baltic.


    I've not seen public concerns about any undersea structure until
    recently.

    Personally speaking I think UK politicians should be taking steps to
    ensure the UK has sufficient electrical generation capacity to be self >>>> sufficient.


    How do you generate this electricity if the North Sea gas pipelines are
    shutdown?


    Phase out using foreign for electricity generation and use a different
    fuel.

    The whole point about the international interconnectors is that they
    work both ways

    Same with gas...

    Regards, ULF
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Muttley@Muttley@DastardlyHQ.org to uk.railway,uk.transport.london on Thu May 15 08:34:52 2025
    From Newsgroup: uk.transport.london

    On Wed, 14 May 2025 21:57:41 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 14:10, Tweed wrote:
    Wind has managed 40% this month. It may well be that wind is currently
    artificially constrained so we donrCOt have a repeat of the Spanish problem. >> Both wind and solar tend to be followers of grid frequency, ie their
    electronics look at the frequency and match it. Conventional plant sustains >> the frequency by virtue of the inertia of the generators. If you donrCOt keep

    enough inertial generation the system trips out in the event of a fault and >> a sudden dip of frequency. The renewables notice the dip, see it is out of >> spec and turn off.

    Another way to overcome this is to convert the AC from the turbines to
    DC when frequency does not pose a problem. This is done with the new

    No reason the turbines couldn't produce DC directly, but yes, DC transmission wo
    uld
    resolve a lot of issues with just having a few main inverters to connect to the
    grid.
    Of course the ultimate goal would be to have an entirely DC HV grid but thats no
    t going to
    happen for decades if ever.


    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Muttley@Muttley@DastardlyHQ.org to uk.railway,uk.transport.london on Thu May 15 08:37:52 2025
    From Newsgroup: uk.transport.london

    On Wed, 14 May 2025 20:16:45 +0100
    Coffee <martin.coffee@round-midnight.org.uk> wibbled:
    On 14/05/2025 10:13, Tweed wrote:
    Funny how the anti renewable lobby have suddenly become concerned about
    undersea power cables but have never raised a concern about all those gas
    and oil pipelines in the North Sea. Half of our gas supplies come via
    undersea pipelines. Such pipelines are vulnerable, as has already been
    demonstrated in the Baltic.


    I've not seen public concerns about any undersea structure until recently.

    Personally speaking I think UK politicians should be taking steps to
    ensure the UK has sufficient electrical generation capacity to be self >sufficient.

    Despite all the puff pieces and chest beating, politicians tend to be
    reactive rather than proactive when it comes to infrastructure and even then they usually leave it to the market, even labour. Windfarms took decades to show up despite wind power generation hardly being a new technology.

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Marland@gemehabal@btinternet.co.uk to uk.transport.london,uk.railway on Thu May 15 11:01:43 2025
    From Newsgroup: uk.transport.london

    <Muttley@DastardlyHQ.org> wrote:
    On Wed, 14 May 2025 21:57:41 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 14:10, Tweed wrote:
    Wind has managed 40% this month. It may well be that wind is currently
    artificially constrained so we donrCOt have a repeat of the Spanish problem.
    Both wind and solar tend to be followers of grid frequency, ie their
    electronics look at the frequency and match it. Conventional plant sustains >>> the frequency by virtue of the inertia of the generators. If you donrCOt keep

    enough inertial generation the system trips out in the event of a fault and >>> a sudden dip of frequency. The renewables notice the dip, see it is out of >>> spec and turn off.

    Another way to overcome this is to convert the AC from the turbines to
    DC when frequency does not pose a problem. This is done with the new

    No reason the turbines couldn't produce DC directly,




    Has technology moved on enough to allow brushless Dynamos for that sort of application?
    Alternators have smooth slip rings for the brushes to bear on while
    collecting the current whereas the old style Dynamo has a commutator with
    its segments that will cause brushwear faster and need more maintenance to prevent flashover . A common task on car dynamos (and lots of smaller
    brushed motors )to keep them working well was to polish the commutator
    with some emery paper to keep the segment edges smooth and alleviate brush wear.

    GH
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Tweed@usenet.tweed@gmail.com to uk.railway,uk.transport.london on Thu May 15 11:27:11 2025
    From Newsgroup: uk.transport.london

    Marland <gemehabal@btinternet.co.uk> wrote:
    <Muttley@DastardlyHQ.org> wrote:
    On Wed, 14 May 2025 21:57:41 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 14:10, Tweed wrote:
    Wind has managed 40% this month. It may well be that wind is currently >>>> artificially constrained so we donrCOt have a repeat of the Spanish problem.
    Both wind and solar tend to be followers of grid frequency, ie their
    electronics look at the frequency and match it. Conventional plant sustains
    the frequency by virtue of the inertia of the generators. If you donrCOt keep

    enough inertial generation the system trips out in the event of a fault and
    a sudden dip of frequency. The renewables notice the dip, see it is out of >>>> spec and turn off.

    Another way to overcome this is to convert the AC from the turbines to
    DC when frequency does not pose a problem. This is done with the new

    No reason the turbines couldn't produce DC directly,




    Has technology moved on enough to allow brushless Dynamos for that sort of application?
    Alternators have smooth slip rings for the brushes to bear on while collecting the current whereas the old style Dynamo has a commutator with
    its segments that will cause brushwear faster and need more maintenance to prevent flashover . A common task on car dynamos (and lots of smaller brushed motors )to keep them working well was to polish the commutator
    with some emery paper to keep the segment edges smooth and alleviate brush wear.

    GH


    The turbines are mostly AC-DC-AC. They generate AC at a frequency in
    proportion to the blade speed. This gets converted to DC and then back to
    AC synchronised to the grid frequency. This latter conversion could be done onshore, with the undersea segment transmitted at DC.

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Certes@Certes@example.org to uk.railway,uk.transport.london on Thu May 15 12:47:08 2025
    From Newsgroup: uk.transport.london

    On 15/05/2025 12:27, Tweed wrote:
    Marland <gemehabal@btinternet.co.uk> wrote:
    <Muttley@DastardlyHQ.org> wrote:
    On Wed, 14 May 2025 21:57:41 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 14:10, Tweed wrote:
    Wind has managed 40% this month. It may well be that wind is currently >>>>> artificially constrained so we donrCOt have a repeat of the Spanish problem.
    Both wind and solar tend to be followers of grid frequency, ie their >>>>> electronics look at the frequency and match it. Conventional plant sustains
    the frequency by virtue of the inertia of the generators. If you donrCOt keep

    enough inertial generation the system trips out in the event of a fault and
    a sudden dip of frequency. The renewables notice the dip, see it is out of
    spec and turn off.

    Another way to overcome this is to convert the AC from the turbines to >>>> DC when frequency does not pose a problem. This is done with the new

    No reason the turbines couldn't produce DC directly,

    Has technology moved on enough to allow brushless Dynamos for that sort of >> application?
    Alternators have smooth slip rings for the brushes to bear on while
    collecting the current whereas the old style Dynamo has a commutator with
    its segments that will cause brushwear faster and need more maintenance to >> prevent flashover . A common task on car dynamos (and lots of smaller
    brushed motors )to keep them working well was to polish the commutator
    with some emery paper to keep the segment edges smooth and alleviate brush >> wear.

    The turbines are mostly AC-DC-AC. They generate AC at a frequency in proportion to the blade speed. This gets converted to DC and then back to
    AC synchronised to the grid frequency. This latter conversion could be done onshore, with the undersea segment transmitted at DC.

    I'm surprised they don't move as much of the electrics as possible into
    the central building onshore which feeds the grid. Perhaps the
    intermediate DC is too low a voltage to travel there efficiently.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Muttley@Muttley@DastardlyHQ.org to uk.transport.london,uk.railway on Thu May 15 13:00:28 2025
    From Newsgroup: uk.transport.london

    On 15 May 2025 11:01:43 GMT
    Marland <gemehabal@btinternet.co.uk> wibbled:
    <Muttley@DastardlyHQ.org> wrote:
    On Wed, 14 May 2025 21:57:41 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 14:10, Tweed wrote:
    Wind has managed 40% this month. It may well be that wind is currently >>>> artificially constrained so we donrCOt have a repeat of the Spanish >problem.
    Both wind and solar tend to be followers of grid frequency, ie their
    electronics look at the frequency and match it. Conventional plant sustains

    the frequency by virtue of the inertia of the generators. If you donrCOt >keep

    enough inertial generation the system trips out in the event of a fault and

    a sudden dip of frequency. The renewables notice the dip, see it is out of >>>> spec and turn off.

    Another way to overcome this is to convert the AC from the turbines to
    DC when frequency does not pose a problem. This is done with the new

    No reason the turbines couldn't produce DC directly,




    Has technology moved on enough to allow brushless Dynamos for that sort of >application?

    Apparently brushless DC motors can also be used as generators. No idea how
    they work but they are a thing apparently.

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Sam Wilson@ukr@dummy.wislons.fastmail.co.uk to uk.railway,uk.transport.london on Sun May 18 17:24:27 2025
    From Newsgroup: uk.transport.london

    Tweed <usenet.tweed@gmail.com> wrote:
    JMB99 <mb@nospam.net> wrote:
    On 14/05/2025 12:14, Clank wrote:
    The improve many more.


    I have never seen anywhere where Eagle Slicers improve the view.

    I think the vast wind farm just south of Glasgow is a majestic sight.

    On the way back from Arran this week we had views from the ferry of the
    medium sized farm on the hills behind Ardrossan, and a few more visible
    from the M8.

    Sam
    --
    The entity formerly known as Sam.Wilson@ed.ac.uk
    Spit the dummy to reply
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Sam Wilson@ukr@dummy.wislons.fastmail.co.uk to uk.railway,uk.transport.london on Sun May 18 17:32:14 2025
    From Newsgroup: uk.transport.london

    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:05, Sam Wilson wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas >>>>>>>> fired
    base load stations. Then the fun will start.

    -aWould that be before or after the gas pipelines get fractured ? >>>>>>
    The West does have a worrying dependency on offshore infrastructure >>>>>> which is impractical to guard. The best we can hope for is to catch >>>>>> and destroy a few submarines, but they are relatively cheap to replace >>>>>> and Putin won't be crying over a few dead seamen.

    They donrCOt need submarines to damage seabed cables, and probably not >>>>> pipelines either. Just have some random rCyneutralrCO ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore
    are prohibited for anchoring or trawling activity.

    ItrCOs dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from
    shipping routes.

    And a friend who used to work in the power industry tells me that, like
    undersea comms cables in shallow water, the power cables are mostly buried. >> That mitigates the risk of accidental damage somewhat.

    But not deliberate damage.

    Possibly not. I donrCOt know how deep the deliberate burying is, but if itrCOs deeper than typical anchor or trawling damage then it would also mitigate against deniable accidental-on-purpose damage.

    Sam
    --
    The entity formerly known as Sam.Wilson@ed.ac.uk
    Spit the dummy to reply
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Charles Ellson@charlesellson@btinternet.com to uk.railway,uk.transport.london on Wed May 21 00:31:43 2025
    From Newsgroup: uk.transport.london

    On Sun, 18 May 2025 17:32:14 -0000 (UTC), Sam Wilson <ukr@dummy.wislons.fastmail.co.uk> wrote:

    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:05, Sam Wilson wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas >>>>>>>>> fired
    base load stations. Then the fun will start.

    aWould that be before or after the gas pipelines get fractured ? >>>>>>>
    The West does have a worrying dependency on offshore infrastructure >>>>>>> which is impractical to guard. The best we can hope for is to catch >>>>>>> and destroy a few submarines, but they are relatively cheap to replace >>>>>>> and Putin won't be crying over a few dead seamen.

    They donAt need submarines to damage seabed cables, and probably not >>>>>> pipelines either. Just have some random aneutralA ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore
    are prohibited for anchoring or trawling activity.

    ItAs dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from
    shipping routes.

    And a friend who used to work in the power industry tells me that, like
    undersea comms cables in shallow water, the power cables are mostly buried. >>> That mitigates the risk of accidental damage somewhat.

    But not deliberate damage.

    Possibly not. I donAt know how deep the deliberate burying is, but if itAs >deeper than typical anchor or trawling damage then it would also mitigate >against deniable accidental-on-purpose damage.

    The cables aren't buried so deep that they cannot be pulled up for
    repairs so all that Vlad needs is roughly the same tool that cable
    ships use but without worrying about being gentle.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Sam Wilson@ukr@dummy.wislons.fastmail.co.uk to uk.railway,uk.transport.london on Wed May 21 16:09:40 2025
    From Newsgroup: uk.transport.london

    Charles Ellson <charlesellson@btinternet.com> wrote:
    On Sun, 18 May 2025 17:32:14 -0000 (UTC), Sam Wilson <ukr@dummy.wislons.fastmail.co.uk> wrote:

    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:05, Sam Wilson wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas
    fired
    base load stations. Then the fun will start.

    -aWould that be before or after the gas pipelines get fractured ? >>>>>>>>
    The West does have a worrying dependency on offshore infrastructure >>>>>>>> which is impractical to guard. The best we can hope for is to catch >>>>>>>> and destroy a few submarines, but they are relatively cheap to replace >>>>>>>> and Putin won't be crying over a few dead seamen.

    They don-At need submarines to damage seabed cables, and probably not >>>>>>> pipelines either. Just have some random -aneutral-A ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore
    are prohibited for anchoring or trawling activity.

    It-As dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from
    shipping routes.

    And a friend who used to work in the power industry tells me that, like >>>> undersea comms cables in shallow water, the power cables are mostly buried.
    That mitigates the risk of accidental damage somewhat.

    But not deliberate damage.

    Possibly not. I don-At know how deep the deliberate burying is, but if it-As
    deeper than typical anchor or trawling damage then it would also mitigate
    against deniable accidental-on-purpose damage.

    The cables aren't buried so deep that they cannot be pulled up for
    repairs so all that Vlad needs is roughly the same tool that cable
    ships use but without worrying about being gentle.

    Yes, but if itrCOs deeper than would be vulnerable to damage with normal equipment, then Vlad needs a fancy cutter he canrCOt claim it was an
    accident.

    Sam
    --
    The entity formerly known as Sam.Wilson@ed.ac.uk
    Spit the dummy to reply
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Charles Ellson@charlesellson@btinternet.com to uk.railway,uk.transport.london on Thu May 22 06:21:16 2025
    From Newsgroup: uk.transport.london

    On Wed, 21 May 2025 16:09:40 -0000 (UTC), Sam Wilson <ukr@dummy.wislons.fastmail.co.uk> wrote:

    Charles Ellson <charlesellson@btinternet.com> wrote:
    On Sun, 18 May 2025 17:32:14 -0000 (UTC), Sam Wilson
    <ukr@dummy.wislons.fastmail.co.uk> wrote:

    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:05, Sam Wilson wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas
    fired
    base load stations. Then the fun will start.

    aWould that be before or after the gas pipelines get fractured ? >>>>>>>>>
    The West does have a worrying dependency on offshore infrastructure >>>>>>>>> which is impractical to guard. The best we can hope for is to catch >>>>>>>>> and destroy a few submarines, but they are relatively cheap to replace
    and Putin won't be crying over a few dead seamen.

    They don?t need submarines to damage seabed cables, and probably not >>>>>>>> pipelines either. Just have some random ?neutral? ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore
    are prohibited for anchoring or trawling activity.

    It?s dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from
    shipping routes.

    And a friend who used to work in the power industry tells me that, like >>>>> undersea comms cables in shallow water, the power cables are mostly buried.
    That mitigates the risk of accidental damage somewhat.

    But not deliberate damage.

    Possibly not. I don?t know how deep the deliberate burying is, but if it?s >>> deeper than typical anchor or trawling damage then it would also mitigate >>> against deniable accidental-on-purpose damage.

    The cables aren't buried so deep that they cannot be pulled up for
    repairs so all that Vlad needs is roughly the same tool that cable
    ships use but without worrying about being gentle.

    Yes, but if itAs deeper than would be vulnerable to damage with normal >equipment, then Vlad needs a fancy cutter he canAt claim it was an
    accident.

    He would also need to hang around long enough to excavate the access
    to it which would tend to be a bit more of a giveaway than just
    dragging an anchor or cutter through it.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Coffee@martin.coffee@round-midnight.org.uk to uk.railway,uk.transport.london on Thu May 22 14:01:06 2025
    From Newsgroup: uk.transport.london

    On 22/05/2025 06:21, Charles Ellson wrote:
    On Wed, 21 May 2025 16:09:40 -0000 (UTC), Sam Wilson <ukr@dummy.wislons.fastmail.co.uk> wrote:

    Charles Ellson <charlesellson@btinternet.com> wrote:
    On Sun, 18 May 2025 17:32:14 -0000 (UTC), Sam Wilson
    <ukr@dummy.wislons.fastmail.co.uk> wrote:

    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:05, Sam Wilson wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas
    fired
    base load stations. Then the fun will start.

    -aWould that be before or after the gas pipelines get fractured ? >>>>>>>>>>
    The West does have a worrying dependency on offshore infrastructure >>>>>>>>>> which is impractical to guard. The best we can hope for is to catch >>>>>>>>>> and destroy a few submarines, but they are relatively cheap to replace
    and Putin won't be crying over a few dead seamen.

    They don?t need submarines to damage seabed cables, and probably not >>>>>>>>> pipelines either. Just have some random ?neutral? ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore
    are prohibited for anchoring or trawling activity.

    It?s dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from >>>>>>> shipping routes.

    And a friend who used to work in the power industry tells me that, like >>>>>> undersea comms cables in shallow water, the power cables are mostly buried.
    That mitigates the risk of accidental damage somewhat.

    But not deliberate damage.

    Possibly not. I don?t know how deep the deliberate burying is, but if it?s
    deeper than typical anchor or trawling damage then it would also mitigate >>>> against deniable accidental-on-purpose damage.

    The cables aren't buried so deep that they cannot be pulled up for
    repairs so all that Vlad needs is roughly the same tool that cable
    ships use but without worrying about being gentle.

    Yes, but if itrCOs deeper than would be vulnerable to damage with normal
    equipment, then Vlad needs a fancy cutter he canrCOt claim it was an
    accident.

    He would also need to hang around long enough to excavate the access
    to it which would tend to be a bit more of a giveaway than just
    dragging an anchor or cutter through it.

    I'm sure the Reds already have a variable depth plough for just that
    purpose.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Charles Ellson@charlesellson@btinternet.com to uk.railway,uk.transport.london on Thu May 22 22:26:47 2025
    From Newsgroup: uk.transport.london

    On Thu, 22 May 2025 14:01:06 +0100, Coffee <martin.coffee@round-midnight.org.uk> wrote:

    On 22/05/2025 06:21, Charles Ellson wrote:
    On Wed, 21 May 2025 16:09:40 -0000 (UTC), Sam Wilson
    <ukr@dummy.wislons.fastmail.co.uk> wrote:

    Charles Ellson <charlesellson@btinternet.com> wrote:
    On Sun, 18 May 2025 17:32:14 -0000 (UTC), Sam Wilson
    <ukr@dummy.wislons.fastmail.co.uk> wrote:

    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:05, Sam Wilson wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas
    fired
    base load stations. Then the fun will start.

    aWould that be before or after the gas pipelines get fractured ? >>>>>>>>>>>
    The West does have a worrying dependency on offshore infrastructure >>>>>>>>>>> which is impractical to guard. The best we can hope for is to catch
    and destroy a few submarines, but they are relatively cheap to replace
    and Putin won't be crying over a few dead seamen.

    They don?t need submarines to damage seabed cables, and probably not >>>>>>>>>> pipelines either. Just have some random ?neutral? ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore
    are prohibited for anchoring or trawling activity.

    It?s dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from >>>>>>>> shipping routes.

    And a friend who used to work in the power industry tells me that, like >>>>>>> undersea comms cables in shallow water, the power cables are mostly buried.
    That mitigates the risk of accidental damage somewhat.

    But not deliberate damage.

    Possibly not. I don?t know how deep the deliberate burying is, but if it?s
    deeper than typical anchor or trawling damage then it would also mitigate >>>>> against deniable accidental-on-purpose damage.

    The cables aren't buried so deep that they cannot be pulled up for
    repairs so all that Vlad needs is roughly the same tool that cable
    ships use but without worrying about being gentle.

    Yes, but if itAs deeper than would be vulnerable to damage with normal
    equipment, then Vlad needs a fancy cutter he canAt claim it was an
    accident.

    He would also need to hang around long enough to excavate the access
    to it which would tend to be a bit more of a giveaway than just
    dragging an anchor or cutter through it.

    I'm sure the Reds already have a variable depth plough for just that >purpose.

    "Reds" in modern Russia ?
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Marland@gemehabal@btinternet.co.uk to uk.railway,uk.transport.london on Fri May 23 08:20:12 2025
    From Newsgroup: uk.transport.london

    Charles Ellson <charlesellson@btinternet.com> wrote:
    On Wed, 21 May 2025 16:09:40 -0000 (UTC), Sam Wilson <ukr@dummy.wislons.fastmail.co.uk> wrote:

    Charles Ellson <charlesellson@btinternet.com> wrote:
    On Sun, 18 May 2025 17:32:14 -0000 (UTC), Sam Wilson
    <ukr@dummy.wislons.fastmail.co.uk> wrote:

    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:05, Sam Wilson wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote:

    Wait until russian underwater mini subs start cutting the cables from the
    windmills in the north sea once Millipede has closed down all our gas
    fired
    base load stations. Then the fun will start.

    -aWould that be before or after the gas pipelines get fractured ? >>>>>>>>>>
    The West does have a worrying dependency on offshore infrastructure >>>>>>>>>> which is impractical to guard. The best we can hope for is to catch >>>>>>>>>> and destroy a few submarines, but they are relatively cheap to replace
    and Putin won't be crying over a few dead seamen.

    They don?t need submarines to damage seabed cables, and probably not >>>>>>>>> pipelines either. Just have some random ?neutral? ship drag its anchor over
    them.

    I have a vague memory that areas where undersea telecoms cables come ashore
    are prohibited for anchoring or trawling activity.

    It?s dated and Wired have started paywalling a lot of stuff so you may not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from >>>>>>> shipping routes.

    And a friend who used to work in the power industry tells me that, like >>>>>> undersea comms cables in shallow water, the power cables are mostly buried.
    That mitigates the risk of accidental damage somewhat.

    But not deliberate damage.

    Possibly not. I don?t know how deep the deliberate burying is, but if it?s
    deeper than typical anchor or trawling damage then it would also mitigate >>>> against deniable accidental-on-purpose damage.

    The cables aren't buried so deep that they cannot be pulled up for
    repairs so all that Vlad needs is roughly the same tool that cable
    ships use but without worrying about being gentle.

    Yes, but if it-As deeper than would be vulnerable to damage with normal
    equipment, then Vlad needs a fancy cutter he can-At claim it was an
    accident.

    He would also need to hang around long enough to excavate the access
    to it which would tend to be a bit more of a giveaway than just
    dragging an anchor or cutter through it.


    In reality the Russians would just do their usual rCLIt was nothing to do
    with us rCL statement knowing full well that that everyone knows it was but unless we have reached the stage where we are actually at war nobody can
    really do anything about it less it would take us to that stage.

    GH
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Muttley@Muttley@DastardlyHQ.org to uk.railway,uk.transport.london on Fri May 23 12:18:29 2025
    From Newsgroup: uk.transport.london

    On 23 May 2025 08:20:12 GMT
    Marland <gemehabal@btinternet.co.uk> wibbled:
    Charles Ellson <charlesellson@btinternet.com> wrote:
    He would also need to hang around long enough to excavate the access
    to it which would tend to be a bit more of a giveaway than just
    dragging an anchor or cutter through it.


    In reality the Russians would just do their usual rCLIt was nothing to do >with us rCL statement knowing full well that that everyone knows it was but >unless we have reached the stage where we are actually at war nobody can >really do anything about it less it would take us to that stage.

    One would hope that the west is doing similar things in russia that we don't hear about, but with Trumps indifference and the bunch of limp bed wetters
    in charge in europe who'd be too scared to do it, I suspect its unlikely.

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Certes@Certes@example.org to uk.railway,uk.transport.london on Fri May 23 23:13:15 2025
    From Newsgroup: uk.transport.london

    On 23/05/2025 13:18, Muttley@DastardlyHQ.org wrote:
    On 23 May 2025 08:20:12 GMT
    Marland <gemehabal@btinternet.co.uk> wibbled:
    Charles Ellson <charlesellson@btinternet.com> wrote:
    He would also need to hang around long enough to excavate the access
    to it which would tend to be a bit more of a giveaway than just
    dragging an anchor or cutter through it.


    In reality the Russians would just do their usual rCLIt was nothing to do
    with us rCL statement knowing full well that that everyone knows it was but >> unless we have reached the stage where we are actually at war nobody can
    really do anything about it less it would take us to that stage.

    One would hope that the west is doing similar things in russia that we don't hear about, but with Trumps indifference and the bunch of limp bed wetters
    in charge in europe who'd be too scared to do it, I suspect its unlikely.

    It's difficult because Russian infrastructure is generally on land
    rather than sea. Ukraine is making noble efforts to nobble a few energy production and distribution targets but otherwise there's little we can
    do without provoking a war.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Graeme Wall@rail@greywall.demon.co.uk to uk.railway,uk.transport.london on Sat May 24 12:01:59 2025
    From Newsgroup: uk.transport.london

    On 24/05/2025 10:08, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded
    countries. I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best describes russia these days. You can make money so long as you keep on the right
    side of Dear
    Leader.


    Short-hand version: A Mafia State.
    --
    Graeme Wall
    This account not read.


    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Coffee@martin.coffee@round-midnight.org.uk to uk.railway,uk.transport.london on Sat May 24 12:37:47 2025
    From Newsgroup: uk.transport.london

    On 24/05/2025 10:08, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded
    countries. I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best describes russia these days. You can make money so long as you keep on the right
    side of Dear
    Leader.

    Alright then I'll use "reds" to mean "economically controlled capitalist dictatorships" in future posting which is not far for the accepted meaning.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Sam Wilson@ukr@dummy.wislons.fastmail.co.uk to uk.railway,uk.transport.london on Sat May 24 16:11:51 2025
    From Newsgroup: uk.transport.london

    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 24/05/2025 10:08, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded
    countries. I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best describes
    russia these days. You can make money so long as you keep on the right
    side of Dear
    Leader.

    Alright then I'll use "reds" to mean "economically controlled capitalist dictatorships" in future posting which is not far for the accepted meaning.

    Applies to the USA too.

    Sam
    --
    The entity formerly known as Sam.Wilson@ed.ac.uk
    Spit the dummy to reply
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Marland@gemehabal@btinternet.co.uk to uk.transport.london,uk.railway on Sat May 24 17:16:17 2025
    From Newsgroup: uk.transport.london

    <Muttley@dastardlyhq.com> wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded countries.
    I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best describes russia
    these days. You can make money so long as you keep on the right side of Dear Leader.



    Too long ago to remember a name but around the era of Glasnost and then Perestroika there was some American politician or maybe it was a
    journalist who basically warned be careful what you wish for as the West watched as the Soviet Union broke up with the warm feeling that Capitalism
    had one over Communism. It was the inbuilt inefficiencies of the latter
    which ensured the Soviet Union was never going to be a serious competitor
    in economic terms. His warning was that unfettered by Communism Russia
    could become a serious economic opponent and the people in charge may not
    play nicely like those in Democracies in the Western Style that some
    thought Russia and other parts of the Soviet Union may have chosen to
    follow.

    GH
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Muttley@Muttley@dastardlyhq.com to uk.railway,uk.transport.london on Sun May 25 07:41:54 2025
    From Newsgroup: uk.transport.london

    On Sat, 24 May 2025 12:37:47 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 24/05/2025 10:08, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded
    countries. I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best describes
    russia these days. You can make money so long as you keep on the right
    side of Dear
    Leader.

    Alright then I'll use "reds" to mean "economically controlled capitalist >dictatorships" in future posting which is not far for the accepted meaning.

    Well not really. Money and profit are dirty words in a true communist state.

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Muttley@Muttley@dastardlyhq.com to uk.transport.london,uk.railway on Sun May 25 07:51:22 2025
    From Newsgroup: uk.transport.london

    On 24 May 2025 17:16:17 GMT
    Marland <gemehabal@btinternet.co.uk> gabbled:
    <Muttley@dastardlyhq.com> wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded countries. >>> I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best describes >russia
    these days. You can make money so long as you keep on the right side of Dear >> Leader.



    Too long ago to remember a name but around the era of Glasnost and then >Perestroika there was some American politician or maybe it was a
    journalist who basically warned be careful what you wish for as the West >watched as the Soviet Union broke up with the warm feeling that Capitalism >had one over Communism. It was the inbuilt inefficiencies of the latter >which ensured the Soviet Union was never going to be a serious competitor
    in economic terms. His warning was that unfettered by Communism Russia
    could become a serious economic opponent and the people in charge may not >play nicely like those in Democracies in the Western Style that some
    thought Russia and other parts of the Soviet Union may have chosen to
    follow.

    Far too many people in the media, politics and in general conflate economics and style of government. They're not the same thing.


    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From ColinR@rail@greystane.shetland.co.uk to uk.railway,uk.transport.london on Sun May 25 11:34:35 2025
    From Newsgroup: uk.transport.london

    On 25/05/2025 08:41, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 12:37:47 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 24/05/2025 10:08, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded
    countries. I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best
    describes russia these days. You can make money so long as you keep
    on the right side of Dear
    Leader.

    Alright then I'll use "reds" to mean "economically controlled
    capitalist dictatorships" in future posting which is not far for the
    accepted meaning.

    Well not really. Money and profit are dirty words in a true communist
    state.


    Are there, or have there ever been, a true communist state? Certainly
    not Russia / USSR (except maybe for the first couple of years) and not
    China. Maybe Vietnam (the northern state after France left).
    --
    Colin

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From JMB99@mb@nospam.net to uk.railway,uk.transport.london on Sun May 25 12:07:12 2025
    From Newsgroup: uk.transport.london

    On 25/05/2025 08:41, Muttley@dastardlyhq.com wrote:
    Well not really. Money and profit are dirty words in a true communist
    state.



    Except for the leadership who usually end up very wealthy, living in luxury.





    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Coffee@martin.coffee@round-midnight.org.uk to uk.railway,uk.transport.london on Sun May 25 12:11:53 2025
    From Newsgroup: uk.transport.london

    On 25/05/2025 08:41, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 12:37:47 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 24/05/2025 10:08, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded
    countries. I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best
    describes russia these days. You can make money so long as you keep
    on the right side of Dear
    Leader.

    Alright then I'll use "reds" to mean "economically controlled
    capitalist dictatorships" in future posting which is not far for the
    accepted meaning.

    Well not really. Money and profit are dirty words in a true communist
    state.

    I only use "reds" in the military sense so that is irrelevant anyway.

    Certainly sabotaging cables and pipelines is a military style operation
    and I feel justified using my terminology.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Graeme Wall@rail@greywall.demon.co.uk to uk.railway,uk.transport.london on Sun May 25 13:00:48 2025
    From Newsgroup: uk.transport.london

    On 25/05/2025 11:34, ColinR wrote:
    On 25/05/2025 08:41, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 12:37:47 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 24/05/2025 10:08, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded
    countries. I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best
    describes russia these days. You can make money so long as you keep
    on the right side of Dear
    Leader.

    Alright then I'll use "reds" to mean "economically controlled
    capitalist dictatorships" in future posting which is not far for the
    accepted meaning.

    Well not really. Money and profit are dirty words in a true communist
    state.


    Are there, or have there ever been, a true communist state? Certainly
    not Russia / USSR (except maybe for the first couple of years) and not China. Maybe Vietnam (the northern state after France left).


    Probably the nearest thing to a true communist state would be a Jewish Kibbutz.
    --
    Graeme Wall
    This account not read.


    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Graeme Wall@rail@greywall.demon.co.uk to uk.railway,uk.transport.london on Sun May 25 13:02:38 2025
    From Newsgroup: uk.transport.london

    On 25/05/2025 12:11, Coffee wrote:
    On 25/05/2025 08:41, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 12:37:47 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 24/05/2025 10:08, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded
    countries. I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best
    describes russia these days. You can make money so long as you keep
    on the right side of Dear
    Leader.

    Alright then I'll use "reds" to mean "economically controlled
    capitalist dictatorships" in future posting which is not far for the
    accepted meaning.

    Well not really. Money and profit are dirty words in a true communist
    state.

    I only-a use "reds" in the military sense so that is irrelevant anyway.

    Certainly sabotaging cables and pipelines is a military style operation
    and I feel justified using my terminology.

    The "reds" would be the Republican party, always confuses me!
    --
    Graeme Wall
    This account not read.


    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From nib@news@ingram-bromley.co.uk to uk.railway,uk.transport.london on Sun May 25 13:22:48 2025
    From Newsgroup: uk.transport.london

    On 2025-05-25 13:02, Graeme Wall wrote:
    On 25/05/2025 12:11, Coffee wrote:
    On 25/05/2025 08:41, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 12:37:47 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 24/05/2025 10:08, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded
    countries. I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best
    describes russia these days. You can make money so long as you keep >>>>> on the right side of Dear
    Leader.

    Alright then I'll use "reds" to mean "economically controlled
    capitalist dictatorships" in future posting which is not far for the
    accepted meaning.

    Well not really. Money and profit are dirty words in a true communist
    state.

    I only-a use "reds" in the military sense so that is irrelevant anyway.

    Certainly sabotaging cables and pipelines is a military style
    operation and I feel justified using my terminology.

    The "reds" would be the Republican party, always confuses me!


    Yes, puts a slightly different meaning to "reds under the bed" !

    nib
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From JMB99@mb@nospam.net to uk.railway,uk.transport.london on Sun May 25 14:01:48 2025
    From Newsgroup: uk.transport.london

    On 25/05/2025 13:00, Graeme Wall wrote:
    Probably the nearest thing to a true communist state would be a Jewish Kibbutz.


    There are probably other small scale operations that are close to true communism, think of St Kilda with the 'Parliament' that made collective decisions.




    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Alan Jones@ajnews@exospan.com to uk.railway,uk.transport.london on Sun May 25 15:03:48 2025
    From Newsgroup: uk.transport.london

    On 15/05/2025 12:27, Tweed wrote:
    Marland <gemehabal@btinternet.co.uk> wrote:
    <Muttley@DastardlyHQ.org> wrote:
    On Wed, 14 May 2025 21:57:41 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 14:10, Tweed wrote:
    Wind has managed 40% this month. It may well be that wind is currently >>>>> artificially constrained so we donrCOt have a repeat of the Spanish problem.
    Both wind and solar tend to be followers of grid frequency, ie their >>>>> electronics look at the frequency and match it. Conventional plant sustains
    the frequency by virtue of the inertia of the generators. If you donrCOt keep

    enough inertial generation the system trips out in the event of a fault and
    a sudden dip of frequency. The renewables notice the dip, see it is out of
    spec and turn off.

    Another way to overcome this is to convert the AC from the turbines to >>>> DC when frequency does not pose a problem. This is done with the new

    No reason the turbines couldn't produce DC directly,




    Has technology moved on enough to allow brushless Dynamos for that sort of >> application?
    Alternators have smooth slip rings for the brushes to bear on while
    collecting the current whereas the old style Dynamo has a commutator with
    its segments that will cause brushwear faster and need more maintenance to >> prevent flashover . A common task on car dynamos (and lots of smaller
    brushed motors )to keep them working well was to polish the commutator
    with some emery paper to keep the segment edges smooth and alleviate brush >> wear.

    GH


    The turbines are mostly AC-DC-AC. They generate AC at a frequency in proportion to the blade speed. This gets converted to DC and then back to
    AC synchronised to the grid frequency. This latter conversion could be done onshore, with the undersea segment transmitted at DC.

    Another future possibility for increased grid stability is synthetic inertia (SI), where the AC generation is designed to reinforce the inertia of the grid.
    SI could be provided by wind and PV plants as an ancillary service, and is becoming more cost-effective thanks to SiC power electronics.

    From 2018: https://www.entsoe.eu/Documents/Network%20codes%20documents/NC%20RfG/IGD_Need_for_Synthetic_Inertia_final.pdf

    "The need for SI applies particularly for smaller synchronous areas with high penetration
    of non-synchronous generation which tend to have lower total system inertia and greater
    frequency volatility (such as Ireland and Great Britain). It may also apply to large
    synchronous areas to prevent total system collapse in case of a system split and
    subsequent island operation. From a system operation perspective it can therefore be of
    crucial importance that all generators, HVDC systems are able to provide SI and supported further by fast action from suitable demand units. SI could then facilitate
    further expansion of RES, which do not naturally contribute to inertia.

    "However, the topic of SI needs further research and development efforts like the major
    pan European project MIGRATE. This comes along with the necessity of maturing the
    technical aspects by the manufacturers to meet the system needs.

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Ulf_Kutzner@Ulf.Kutzner@web.de to uk.transport.london,uk.railway on Sun May 25 15:48:53 2025
    From Newsgroup: uk.transport.london

    On Sat, 24 May 2025 17:16:17 +0000, Marland wrote:

    <Muttley@dastardlyhq.com> wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded countries.
    I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best describes
    russia
    these days. You can make money so long as you keep on the right side of
    Dear
    Leader.



    Too long ago to remember a name but around the era of Glasnost and then Perestroika there was some American politician or maybe it was a
    journalist who basically warned be careful what you wish for as the West watched as the Soviet Union broke up with the warm feeling that
    Capitalism
    had one over Communism. It was the inbuilt inefficiencies of the latter which ensured the Soviet Union was never going to be a serious
    competitor
    in economic terms. His warning was that unfettered by Communism Russia
    could become a serious economic opponent and the people in charge may
    not
    play nicely like those in Democracies in the Western Style that some
    thought Russia and other parts of the Soviet Union may have chosen to
    follow.

    But the industrial competitor is PRC.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Ulf_Kutzner@Ulf.Kutzner@web.de to uk.railway,uk.transport.london on Sun May 25 15:50:01 2025
    From Newsgroup: uk.transport.london

    On Thu, 22 May 2025 21:26:47 +0000, Charles Ellson wrote:

    On Thu, 22 May 2025 14:01:06 +0100, Coffee <martin.coffee@round-midnight.org.uk> wrote:

    On 22/05/2025 06:21, Charles Ellson wrote:
    On Wed, 21 May 2025 16:09:40 -0000 (UTC), Sam Wilson
    <ukr@dummy.wislons.fastmail.co.uk> wrote:

    Charles Ellson <charlesellson@btinternet.com> wrote:
    On Sun, 18 May 2025 17:32:14 -0000 (UTC), Sam Wilson
    <ukr@dummy.wislons.fastmail.co.uk> wrote:

    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:05, Sam Wilson wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote: >>>>>>>>>>>>>>
    Wait until russian underwater mini subs start cutting the cables from
    the
    windmills in the north sea once Millipede has closed down all our gas
    fired
    base load stations. Then the fun will start.

    -aWould that be before or after the gas pipelines get fractured ?

    The West does have a worrying dependency on offshore infrastructure
    which is impractical to guard. The best we can hope for is to catch
    and destroy a few submarines, but they are relatively cheap to replace
    and Putin won't be crying over a few dead seamen.

    They don?t need submarines to damage seabed cables, and probably not
    pipelines either. Just have some random ?neutral? ship drag its anchor
    over
    them.

    I have a vague memory that areas where undersea telecoms cables come >>>>>>>>>> ashore
    are prohibited for anchoring or trawling activity.

    It?s dated and Wired have started paywalling a lot of stuff so you may
    not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from >>>>>>>>> shipping routes.

    And a friend who used to work in the power industry tells me that, like
    undersea comms cables in shallow water, the power cables are mostly >>>>>>>> buried.
    That mitigates the risk of accidental damage somewhat.

    But not deliberate damage.

    Possibly not. I don?t know how deep the deliberate burying is, but if >>>>>> it?s
    deeper than typical anchor or trawling damage then it would also
    mitigate
    against deniable accidental-on-purpose damage.

    The cables aren't buried so deep that they cannot be pulled up for
    repairs so all that Vlad needs is roughly the same tool that cable
    ships use but without worrying about being gentle.

    Yes, but if it-As deeper than would be vulnerable to damage with normal >>>> equipment, then Vlad needs a fancy cutter he can-At claim it was an
    accident.

    He would also need to hang around long enough to excavate the access
    to it which would tend to be a bit more of a giveaway than just
    dragging an anchor or cutter through it.

    I'm sure the Reds already have a variable depth plough for just that >>purpose.

    "Reds" in modern Russia ?

    The ruling head of State used to be a communist.

    Regards, ULF
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Ulf_Kutzner@Ulf.Kutzner@web.de to uk.railway,uk.transport.london on Sun May 25 15:54:08 2025
    From Newsgroup: uk.transport.london

    On Sun, 25 May 2025 10:34:35 +0000, ColinR wrote:

    On 25/05/2025 08:41, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 12:37:47 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 24/05/2025 10:08, Muttley@dastardlyhq.com wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded
    countries. I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best
    describes russia these days. You can make money so long as you keep
    on the right side of Dear
    Leader.

    Alright then I'll use "reds" to mean "economically controlled
    capitalist dictatorships" in future posting which is not far for the
    accepted meaning.

    Well not really. Money and profit are dirty words in a true communist
    state.


    Are there, or have there ever been, a true communist state? Certainly
    not Russia / USSR (except maybe for the first couple of years)

    Had private peasants/farmers, then.

    and not
    China. Maybe Vietnam (the northern state after France left).

    You mighjt want to add Red Khmer BUT
    by the theory, there has to be socialism
    before communism.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Graeme Wall@rail@greywall.demon.co.uk to uk.railway,uk.transport.london on Sun May 25 17:33:03 2025
    From Newsgroup: uk.transport.london

    On 25/05/2025 14:01, JMB99 wrote:
    On 25/05/2025 13:00, Graeme Wall wrote:
    Probably the nearest thing to a true communist state would be a Jewish
    Kibbutz.


    There are probably other small scale operations that are close to true communism, think of St Kilda with the 'Parliament' that made collective decisions.





    Similar to Iceland with it's Thingvellir.
    --
    Graeme Wall
    This account not read.


    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Marland@gemehabal@btinternet.co.uk to uk.railway,uk.transport.london on Sun May 25 18:10:02 2025
    From Newsgroup: uk.transport.london

    Ulf_Kutzner <Ulf.Kutzner@web.de> wrote:
    On Sat, 24 May 2025 17:16:17 +0000, Marland wrote:

    <Muttley@dastardlyhq.com> wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded countries. >>>> I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best describes
    russia
    these days. You can make money so long as you keep on the right side of
    Dear
    Leader.



    Too long ago to remember a name but around the era of Glasnost and then
    Perestroika there was some American politician or maybe it was a
    journalist who basically warned be careful what you wish for as the West
    watched as the Soviet Union broke up with the warm feeling that
    Capitalism
    had one over Communism. It was the inbuilt inefficiencies of the latter
    which ensured the Soviet Union was never going to be a serious
    competitor
    in economic terms. His warning was that unfettered by Communism Russia
    could become a serious economic opponent and the people in charge may
    not
    play nicely like those in Democracies in the Western Style that some
    thought Russia and other parts of the Soviet Union may have chosen to
    follow.

    But the industrial competitor is PRC.


    So far for manufactured goods on a large scale, but until the recent introductions of sanctions a
    lot of material such as gas ,coal , oil and grain was being exported from Russia earning them revenue.
    Technology wise Russians when not shackled by Communism have shown they are quite adept in some fields , go into many a western field sports shop and
    you would find things like night vision sights most of which had components originating from Russia, another niche field was manufacturing things from titanium lightweight bicycle frames being an example..
    You can bet that they are developing their own products to replace those
    now not easily obtained due to sanctions whose effect on them will lessen
    all the time.

    GH
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Recliner@recliner.usenet@gmail.com to uk.railway,uk.transport.london on Sun May 25 18:49:53 2025
    From Newsgroup: uk.transport.london

    Marland <gemehabal@btinternet.co.uk> wrote:
    Ulf_Kutzner <Ulf.Kutzner@web.de> wrote:
    On Sat, 24 May 2025 17:16:17 +0000, Marland wrote:

    <Muttley@dastardlyhq.com> wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded countries. >>>>> I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best describes >>>> russia
    these days. You can make money so long as you keep on the right side of >>>> Dear
    Leader.



    Too long ago to remember a name but around the era of Glasnost and then
    Perestroika there was some American politician or maybe it was a
    journalist who basically warned be careful what you wish for as the West >>> watched as the Soviet Union broke up with the warm feeling that
    Capitalism
    had one over Communism. It was the inbuilt inefficiencies of the latter >>> which ensured the Soviet Union was never going to be a serious
    competitor
    in economic terms. His warning was that unfettered by Communism Russia
    could become a serious economic opponent and the people in charge may
    not
    play nicely like those in Democracies in the Western Style that some
    thought Russia and other parts of the Soviet Union may have chosen to
    follow.

    But the industrial competitor is PRC.


    So far for manufactured goods on a large scale, but until the recent introductions of sanctions a
    lot of material such as gas ,coal , oil and grain was being exported from Russia earning them revenue.
    Technology wise Russians when not shackled by Communism have shown they are quite adept in some fields , go into many a western field sports shop and
    you would find things like night vision sights most of which had components originating from Russia, another niche field was manufacturing things from titanium lightweight bicycle frames being an example..
    You can bet that they are developing their own products to replace those
    now not easily obtained due to sanctions whose effect on them will lessen all the time.


    From what IrCOve read, lots of sanctioned goods still get in via third or fourth countries (eg, exports of luxury German cars to Russia have dropped right down, but exports to the rCyStans have shot up). China is filling the other gaps. Russian manufacturing ingenuity is focused entirely on arms production, such as new drones and missiles. ItrCOs both developing new and improved indigenous models, and modifying Iranian and Chinese designs.

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Charles Ellson@charlesellson@btinternet.com to uk.railway,uk.transport.london on Sun May 25 21:57:04 2025
    From Newsgroup: uk.transport.london

    On Sun, 25 May 2025 15:50:01 +0000, Ulf_Kutzner <Ulf.Kutzner@web.de>
    wrote:

    On Thu, 22 May 2025 21:26:47 +0000, Charles Ellson wrote:

    On Thu, 22 May 2025 14:01:06 +0100, Coffee
    <martin.coffee@round-midnight.org.uk> wrote:

    On 22/05/2025 06:21, Charles Ellson wrote:
    On Wed, 21 May 2025 16:09:40 -0000 (UTC), Sam Wilson
    <ukr@dummy.wislons.fastmail.co.uk> wrote:

    Charles Ellson <charlesellson@btinternet.com> wrote:
    On Sun, 18 May 2025 17:32:14 -0000 (UTC), Sam Wilson
    <ukr@dummy.wislons.fastmail.co.uk> wrote:

    Coffee <martin.coffee@round-midnight.org.uk> wrote:
    On 14/05/2025 10:05, Sam Wilson wrote:
    Graeme Wall <rail@greywall.demon.co.uk> wrote:
    On 13/05/2025 08:37, Sam Wilson wrote:
    Recliner <recliner.usenet@gmail.com> wrote:
    Certes <Certes@example.org> wrote:
    On 12/05/2025 21:40, Nick Finnigan wrote:
    On 12/05/2025 19:07, Muttley@DastardlyHQ.org wrote: >>>>>>>>>>>>>>>
    Wait until russian underwater mini subs start cutting the cables from
    the
    windmills in the north sea once Millipede has closed down all our gas
    fired
    base load stations. Then the fun will start.

    aWould that be before or after the gas pipelines get fractured ?

    The West does have a worrying dependency on offshore infrastructure
    which is impractical to guard. The best we can hope for is to catch
    and destroy a few submarines, but they are relatively cheap to replace
    and Putin won't be crying over a few dead seamen.

    They don?t need submarines to damage seabed cables, and probably not
    pipelines either. Just have some random ?neutral? ship drag its anchor
    over
    them.

    I have a vague memory that areas where undersea telecoms cables come
    ashore
    are prohibited for anchoring or trawling activity.

    It?s dated and Wired have started paywalling a lot of stuff so you may
    not
    be able to read it, but this is a fascinating article
    <https://www.wired.com/1996/12/ffglass/>.


    Most off-sure windfarms are in shallow water and a long way from >>>>>>>>>> shipping routes.

    And a friend who used to work in the power industry tells me that, like
    undersea comms cables in shallow water, the power cables are mostly >>>>>>>>> buried.
    That mitigates the risk of accidental damage somewhat.

    But not deliberate damage.

    Possibly not. I don?t know how deep the deliberate burying is, but if >>>>>>> it?s
    deeper than typical anchor or trawling damage then it would also >>>>>>> mitigate
    against deniable accidental-on-purpose damage.

    The cables aren't buried so deep that they cannot be pulled up for >>>>>> repairs so all that Vlad needs is roughly the same tool that cable >>>>>> ships use but without worrying about being gentle.

    Yes, but if it?s deeper than would be vulnerable to damage with normal >>>>> equipment, then Vlad needs a fancy cutter he can?t claim it was an
    accident.

    He would also need to hang around long enough to excavate the access
    to it which would tend to be a bit more of a giveaway than just
    dragging an anchor or cutter through it.

    I'm sure the Reds already have a variable depth plough for just that >>>purpose.

    "Reds" in modern Russia ?

    The ruling head of State used to be a communist.

    .. or identified as one.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Ulf_Kutzner@Ulf.Kutzner@web.de to uk.railway,uk.transport.london on Mon May 26 06:29:38 2025
    From Newsgroup: uk.transport.london

    On Sun, 25 May 2025 18:10:02 +0000, Marland wrote:

    Ulf_Kutzner <Ulf.Kutzner@web.de> wrote:
    On Sat, 24 May 2025 17:16:17 +0000, Marland wrote:

    <Muttley@dastardlyhq.com> wrote:
    On Sat, 24 May 2025 08:49:53 +0100
    Coffee <martin.coffee@round-midnight.org.uk> gabbled:
    On 22/05/2025 22:26, Charles Ellson wrote:
    "Reds" in modern Russia ?

    I use the term "red" to describe Russia and similarly minded countries. >>>>> I'll try to avoid it in future.

    I think economically controlled capitalist dictatorship best describes >>>> russia
    these days. You can make money so long as you keep on the right side of >>>> Dear
    Leader.



    Too long ago to remember a name but around the era of Glasnost and then
    Perestroika there was some American politician or maybe it was a
    journalist who basically warned be careful what you wish for as the West >>> watched as the Soviet Union broke up with the warm feeling that
    Capitalism
    had one over Communism. It was the inbuilt inefficiencies of the latter >>> which ensured the Soviet Union was never going to be a serious
    competitor
    in economic terms. His warning was that unfettered by Communism Russia
    could become a serious economic opponent and the people in charge may
    not
    play nicely like those in Democracies in the Western Style that some
    thought Russia and other parts of the Soviet Union may have chosen to
    follow.

    But the industrial competitor is PRC.


    So far for manufactured goods on a large scale, but until the recent introductions of sanctions a
    lot of material such as gas ,coal , oil and grain was being exported
    from
    Russia earning them revenue.

    Sure but raw material extraction does not need
    much of sense of quality in most cases. Things
    might be a bit different f|+r dwelling gas in
    actic conditions and operating long pipelines.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Muttley@Muttley@DastardlyHQ.org to uk.transport.london,uk.railway on Tue Jul 15 17:55:08 2025
    From Newsgroup: uk.transport.london

    On 15 May 2025 11:01:43 GMT
    Marland <gemehabal@btinternet.co.uk> wibbled:
    <Muttley@DastardlyHQ.org> wrote:
    On Wed, 14 May 2025 21:57:41 +0100
    ColinR <rail@greystane.shetland.co.uk> wibbled:
    On 14/05/2025 14:10, Tweed wrote:
    Wind has managed 40% this month. It may well be that wind is currently >>>> artificially constrained so we donrCOt have a repeat of the Spanish >problem.
    Both wind and solar tend to be followers of grid frequency, ie their
    electronics look at the frequency and match it. Conventional plant sustains

    the frequency by virtue of the inertia of the generators. If you donrCOt >keep

    enough inertial generation the system trips out in the event of a fault and

    a sudden dip of frequency. The renewables notice the dip, see it is out of >>>> spec and turn off.

    Another way to overcome this is to convert the AC from the turbines to
    DC when frequency does not pose a problem. This is done with the new

    No reason the turbines couldn't produce DC directly,




    Has technology moved on enough to allow brushless Dynamos for that sort of >application?

    https://www.amazon.co.uk/Permanent-Brushless-Generator-48V60V800W1000W1100W1200W
    -Motor-1000w/dp/B0CNZ6CGQ8


    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Muttley@Muttley@DastardlyHQ.org to uk.railway,uk.transport.london on Wed Jul 16 07:13:06 2025
    From Newsgroup: uk.transport.london

    On Thu, 15 May 2025 11:27:11 -0000 (UTC)
    Tweed <usenet.tweed@gmail.com> wibbled:
    Marland <gemehabal@btinternet.co.uk> wrote:
    <Muttley@DastardlyHQ.org> wrote:
    No reason the turbines couldn't produce DC directly,




    Has technology moved on enough to allow brushless Dynamos for that sort of >> application?
    Alternators have smooth slip rings for the brushes to bear on while
    collecting the current whereas the old style Dynamo has a commutator with
    its segments that will cause brushwear faster and need more maintenance to >> prevent flashover . A common task on car dynamos (and lots of smaller
    brushed motors )to keep them working well was to polish the commutator
    with some emery paper to keep the segment edges smooth and alleviate brush >> wear.

    GH


    The turbines are mostly AC-DC-AC. They generate AC at a frequency in >proportion to the blade speed. This gets converted to DC and then back to
    AC synchronised to the grid frequency. This latter conversion could be done >onshore, with the undersea segment transmitted at DC.

    The point was that brushless DC generators exist. Instead of the initial
    AC-DC step it could just be DC.

    --- Synchronet 3.21d-Linux NewsLink 1.2