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Demand response is a cheaper answer.
When we electrify heating, we will need seasonal storage too which is a challenge for both batteries and demand response. In Denmark they are injecting heat to aquifers which can be extracted in the winter for district heating.
A decade ago there was a report of a housing scheme in Alberta where solar thermal on garage roofs was used to heat the ground below. Extracted by GSHP during the winter. If it works there, it'll work anywhere. And there's a house in our village in Shropshire which has a similar system installed - don't know the economics though.
 

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  • Nuclear output always remains constant unless refuelling, or maintenance or failures. There is NO load following in the UK.
That isn’t really true. It is a matter of economics and also the flexibility of the plants. They can turn down but it takes a while to turn up again and the effective cost saving of doing so is probably negative. If they turn down to buy back negatively proved Energy they would also lose out on production at times when the energy has a positive price. But they are commercial operators and do what is in their interests. It has been a market since 1990.


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That isn’t really true. It is a matter of economics and also the flexibility of the plants. They can turn down but it takes a while to turn up again and the effective cost saving of doing so is probably negative. If they turn down to buy back negatively proved Energy they would also lose out on production at times when the energy has a positive price. But they are commercial operators and do what is in their interests. It has been a market since 1990.


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No, you are wrong.They just run flat out unless they are broken or doing maintenance.
 

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By turning down any of the UK's elderly nuclear power plants, aka any sort of load following, what sort of COSTS would be saved.??????
 

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There were reports in the press that they reduced output last month to cope with increased renewables.
Correct and they did so... EDF asked to lower Sizewell nuclear plant output to help balance UK grid

 

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A decade ago there was a report of a housing scheme in Alberta where solar thermal on garage roofs was used to heat the ground below. Extracted by GSHP during the winter. If it works there, it'll work anywhere. And there's a house in our village in Shropshire which has a similar system installed - don't know the economics though.
Thanks for sharing that, that's a really interesting project. The Caerau Mines initiative could do something similar.
 

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Discussion Starter #232
As someone just said on an online conference, where would you rather put your infrastructure investment millions - airports, ports, office buildings, shopping centres, oil and gas, care homes, student accommodation, solar plants? The relevance of the ones other than solar is that they were all seen as safe havens by investors 3 months ago.
 

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I'd argue that Care Homes still are, even if there are less residents going forwards an awful lot more money will be thrown at them!
 

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Discussion Starter #234
I'd argue that Care Homes still are, even if there are less residents going forwards an awful lot more money will be thrown at them!
Maybe the sector in the long term but you wouldn't find any strong performing companies to invest in at the moment.
 

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When daytime electricity price goes negative, are solar farms performing great as investments? Or are some still making money due to subventions or fixed FIT that are not available anymore?
 

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When daytime electricity price goes negative, are solar farms performing great as investments? Or are some still making money due to subventions or fixed FIT that are not available anymore?
They mostly have feed in tariffs or the CFD FIT which protects them against the price movements. The instantaneous low prices are an aberration. Overall the cost of PV is now much lower than (for example) nuclear energy which will have the same CFD FIT contract structure. But for much longer!
 
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