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400kW charger - how many of these on a typical local network ?

Discussion in 'Electrics UK' started by SimonH2, 16 Dec 2018.

  1. JohnD

    JohnD

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    might not like atomic kettles either. Or big coal chimneys. Or onshore windfarms. Or subsidies. Or burning oil and gas. Or desertification and floods caused by climate change.

    But if you look at a big reservoir that was built more than ten years ago, people mostly love them.

    Morecambe bay would be just as beautiful, just different.
     
  2. JohnD

    JohnD

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    "The cost of subsidies for new offshore wind farms has halved since the last 2015 auction for clean energy projects

    Two firms said they were willing to build offshore wind farms for a guaranteed price of £57.50 per megawatt hour for 2022-23.

    This compares with the new Hinkley Point C nuclear plant securing subsidies of £92.50 per megawatt hour."


    https://www.bbc.co.uk/news/business-41220948

    "The subsidies, paid from a levy on consumer bills, will run for 15 years - unlike nuclear subsidies for Hinkley C which run for 35 years."
     
  3. reds42

    reds42

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    Theres not much they do like...

    I wonder how much generation you could get from it, quite a big area.
     
  4. JohnD

    JohnD

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    The last proposal I saw was for a lagoon in it, not the whole thing

    Not sure what size this one was

    "It would be the UK’s first large scale tidal range power project - delivering predictable renewable power of 8 million MWh annually (seven per cent of the Northwest power requirement, and two per cent of national power requirement)."

    Which is about as much as a small nuke. But vastly cheaper.

    https://www.lancasterguardian.co.uk...y-and-road-link-plans-to-go-on-show-1-9757793
     
  5. JohnD

    JohnD

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  6. reds42

    reds42

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    Once climate change has really kicked in and the birds are gone maybe they will get somewhere in building it, but might be a bit late then though.
     
  7. Harry Bloomfield

    Harry Bloomfield

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    You said within your two lines above that the wind always blows, then your following sentence entirely contradicted that. The big question is, what do we do for power when it is dark and the wind is not blowing anywhere? Dark, low solar output (or none) and no wind is common in winter. Should we all hibernate?

    Nukes care nothing for the what the weather is doing, they generate regardless and keep in mind we need generating capacity anyway, to cover for no sun and no wind.

    Tidal can generate twice per day ( I think?), so still of limited value.
     
  8. JohnD

    JohnD

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    Should have gone to Specsavers.

     
  9. Harry Bloomfield

    Harry Bloomfield

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    My question stands - what do we do when there is no wind and no solar?
     
  10. JohnD

    JohnD

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    twice in and twice out. Some places more.

    It is at different times in different places.

    With a lagoon you increase the amount of time water is flowing.
     
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  11. bernardgreen

    bernardgreen

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    Nine days with no wind generation ( no wind ) LINK

    Bearings: The Achilles Heel of Wind Turbines

    Although this article is from 2014 there still seems to be a large financial cost in replacing failed bearings in wind turbines.
     
  12. reds42

    reds42

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    For reliable power from renewables you really need to build a super grid, it will be windy or sunny somewhere in the world. Be quite a big undertaking mind.
     
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  13. JohnD

    JohnD

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    If we were a member of some kind of regional trans-national group, we could, together, build something that spanned a large area and could balance out demand and supply.

    Most of Western and Central Europe, for example.

    But we would have to learn to be co-operative with other countries, which might be hard for some.

    We could also invest in a solar scheme in one of the sunniest parts of the world. Saharan Africa, perhaps.
     
  14. reds42

    reds42

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    Just spoted this article on BBC news, somewhat relevant to current debate. Particularly the question of if we have enough electricity.
     
  15. bernardgreen

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