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ralph ellis's avatar

Regards costs of renewables…

a. The full cost includes the stored backup that renewables need. The UK needs 30,000 gwh of stored backup, of either pumped storage or hydrogen, which is going to more than double the cost of renewables.

b. There is no point discussing solar, as solar does not work in the winter, which is when the UK needs the energy. I have been tracking solar, and it appears to drop to just 10% of its normal output in the winter.

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Regards stored backup, we need 1,000 Dinorwigs (if Dinorwig could manage 30 gwh). Where on earth can we build those? And at what cost?

The Royal Society suggested hydrogen backup, with 800 caverns, being built, 2,500 ft down in Yorkshire. Large scale electrolysis, de-min water, and storage has never been tried before. And then we would need 60 new 2 gw power stations in Yorkshire, burning hydrogen - just for the backup system. The RS suggested piston engine generators - not sure why, as jets can run on hydrogen.

The main problem being that the full hydrogen cycle is only 30% efficient, and so extra wind farms would have to be built, to make up for the shortfall. The end result of all this (even if it could be made to work), is the huge costs involved.

The RS said £410 billion.

My cost was £4,300 billion.

(That is for renewables generation, plus the backup system.)

I sent the costings to parliament, and I note that some politicians are now quoting £4 trillion. Which is a much more realistic cost than the RS’s paltry £410 billion.

R

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Jaime Jessop's avatar

It's rather preaching to the choir by advertising in the Guardian, and excluding Green zealots and woke Leftists who read the Guardian to be 'informed' (have their confirmation biases reinforced) that leaves only people like us who read it to monitor the level of mis/disinformation on offer. It would be interesting to see if National Grid try the same trick in the Telegraph say. But yes, most definitely, complaints should be made to the advertising standards agency.

National Grid PLC has been fully assimilated by the Borg-like Green Blob; I don't think there is any going back now. Sacking a few managers here and there or even firing the CEO is not going to do it. The Green cancer has metastasized and spread throughout. The organisation needs to be completely disbanded.

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