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Re:Equivalent of 97% of Scotland’s 2020 electricity consumpt... by londons_explore on Friday March 26, 2021 @12:20PM (#26593899)
> which happens at least a couple times a week,

Citation needed. Last time I looked the pricing of octopus agile went negative for like 15 minutes a year...

EDIT: just crunched the data... It looks like this only happened frequently in 2020 (not in 2018/19/21), and even then, for a typical 1 kilowatt household, it would only save £2 per year, and even if you deliberately maxed out and used the maximum current limit of your AC supply (100 amps, 24 kW, for most households), it's still only a saving of £50, which doesn't pay for the effort really...

Re:Equivalent of 97% of Scotland’s 2020 electricity consumpt... by gambiting on Friday March 26, 2021 @12:23PM (#26593949)
You're absolutely right, it was far more common last summer when I was switching, looks like this year the negative prices are very very rare:

https://www.energy-stats.uk/octopus-agile-north-eastern-engl...

Re:Equivalent of 97% of Scotland’s 2020 electricity consumpt... by heavenlyblue on Friday March 26, 2021 @01:21PM (#26594626)
This is why it should be done on an organisational level: a company provides a service that makes sure that the car charger is enabled only at times with negative prices, and then makes money on providing a certain guaranteed load.