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Record wind and solar saved UK from gas imports worth £1B in March 2026

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Re: Record wind and solar saved UK from gas imports worth £1B in March 2026

#21
post #13

I'm in the UK and am currently being paid to use electricity. My energy provider uses a tracker tariff which can change every half hour (it does have a maximum cap to prevent the issues seen in Texas). Prices are currently negative, so every kWh I use right now means the electricity company pays me. Nuclear promised energy which was "too cheap to meter". But solar actually delivered.

If you had a big enough battery, could you sell electricity back to the grid later? Get paid to charge the battery, get paid to discharge the battery? It seems silly, but actually... it's driving useful behavior I suppose. Then again, maybe a good government would notice this and just fast track grid storage rather than distribute that work to all the citizens.

Overall on it's own that isn't yet profitable to do, unless you're e.g. a wind producer.

Re: Record wind and solar saved UK from gas imports worth £1B in March 2026

#22
post #13

I'm in the UK and am currently being paid to use electricity. My energy provider uses a tracker tariff which can change every half hour (it does have a maximum cap to prevent the issues seen in Texas). Prices are currently negative, so every kWh I use right now means the electricity company pays me. Nuclear promised energy which was "too cheap to meter". But solar actually delivered.

If you had a big enough battery, could you sell electricity back to the grid later? Get paid to charge the battery, get paid to discharge the battery? It seems silly, but actually... it's driving useful behavior I suppose. Then again, maybe a good government would notice this and just fast track grid storage rather than distribute that work to all the citizens.

Yes, I believe some EVs allow this too.

Re: Record wind and solar saved UK from gas imports worth £1B in March 2026

#23

We have some of the highest electricity prices in the world. The politicians obsess over net-zero at the expense of dealing with the issues affecting most people.

> We have some of the highest electricity prices in the world.

Current price −£24.86/MWh (yes you get paid to use it)

Re: Record wind and solar saved UK from gas imports worth £1B in March 2026

#24
post #22

Earlier quoted context omitted.

If you had a big enough battery, could you sell electricity back to the grid later? Get paid to charge the battery, get paid to discharge the battery? It seems silly, but actually... it's driving useful behavior I suppose. Then again, maybe a good government would notice this and just fast track grid storage rather than distribute that work to all the citizens.

Yes, I believe some EVs allow this too.

I don't think that would ever commonly be viable or at least not for a long time. EV's are a lot more than batteries and are proportionally stupidly expensive. If the electricity net arbitrage was worth the degradation of the battery then .... companies would do it themselves and just build the batteries for cheaper at scale.

Re: Record wind and solar saved UK from gas imports worth £1B in March 2026

#25

We have some of the highest electricity prices in the world. The politicians obsess over net-zero at the expense of dealing with the issues affecting most people.

You seem to make the same comments in every thread about renewable energy regardless of what's actually happening.

Re: Record wind and solar saved UK from gas imports worth £1B in March 2026

#26
post #23

We have some of the highest electricity prices in the world. The politicians obsess over net-zero at the expense of dealing with the issues affecting most people.

> We have some of the highest electricity prices in the world. Current price −£24.86/MWh (yes you get paid to use it)

Octopus fixed tariff day rates are currently 33.15 p/kWh, or £332/MWh, which is a better representative number for what people are actually paying.

But timeshift seems to be increasingly important.

Re: Record wind and solar saved UK from gas imports worth £1B in March 2026

#27
post #13

I'm in the UK and am currently being paid to use electricity. My energy provider uses a tracker tariff which can change every half hour (it does have a maximum cap to prevent the issues seen in Texas). Prices are currently negative, so every kWh I use right now means the electricity company pays me. Nuclear promised energy which was "too cheap to meter". But solar actually delivered.

If you had a big enough battery, could you sell electricity back to the grid later? Get paid to charge the battery, get paid to discharge the battery? It seems silly, but actually... it's driving useful behavior I suppose. Then again, maybe a good government would notice this and just fast track grid storage rather than distribute that work to all the citizens.

Yes. I have a 4.8kWh battery which is slurping up electrons. It charges either from our solar panels or from cheap grid electricity.

It discharges when prices are high. So it'll mostly go into my oven tonight. If export prices are high, it can also sell back.

Very roughly, we sell about 16% of our stored electricity - the rest is used by our home.

See https://shkspr.mobi/blog/2026/02/30-months-to-3mwh-some-more...

Re: Record wind and solar saved UK from gas imports worth £1B in March 2026

#28
post #10

Does this cancel out the high energy prices people in the UK have been paying for the past decade+? Part of the reason the bills are high is because they subsidise the installation of renewable generation.

Sounds like that was a good idea, then? Not sure why you perceive this as some sort of gotcha or an axe to grind.

Yes, building infrastructure costs money. Where's the problem?

Re: Record wind and solar saved UK from gas imports worth £1B in March 2026

#29
post #22

Earlier quoted context omitted.

Yes, I believe some EVs allow this too.

I don't think that would ever commonly be viable or at least not for a long time. EV's are a lot more than batteries and are proportionally stupidly expensive. If the electricity net arbitrage was worth the degradation of the battery then .... companies would do it themselves and just build the batteries for cheaper at scale.

It is commercially viable. A UK energy company already has a Vehicle to Grid tariff.

https://octopus.energy/power-pack/

See also https://www.ofgem.gov.uk/publications/case-study-uk-electric...

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