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Rooftop solar panels are flooding California’s grid. That’s a problem. As electricity prices go negative, the Golden State is struggling to offload a glut of solar power (wapo.st)

submitted 7 months ago* (last edited 7 months ago) by silence7 to c/energy

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I'll note that right now, this is a seasonal issue, associated with moderate springtime temperatures when there is a lot of sunshine available.

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[–] dumples@kbin.social 5 points 7 months ago (1 children)

Battery power and transferring power across the entire nation. When is sunny one place it's not sunny elsewhere. As things get connected together this is useful. We can all use cheap as free electricity

[–] HeartyBeast@kbin.social 3 points 7 months ago (1 children)

… and domestic batteries to grab that lovely more-than free energy

[–] dumples@kbin.social 3 points 7 months ago (1 children)

Exactly. Batteries to hold it when its free

[–] HeartyBeast@kbin.social 2 points 7 months ago (1 children)

I have batteries that I use for my solar - but here in the UK electricity pricing frequently goes negative in the winter at night to due to a surplus of wind power. a few simple automations make sure when that happens my batteries start charging and my electric water tank heater turns on. My energy company now has a scheme where they will do it all for you if you opt in - automagically getting your batteries to charge when it makes financial sense for you.

[–] dumples@kbin.social 1 points 7 months ago (1 children)

It's a simple system if you have the supplies

[–] HeartyBeast@kbin.social 2 points 7 months ago

Well it runs on a Raspberry Pi 4 about £50 all in.