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What storage option is greener for solar panels? Battery, hydro tank or other? (lemmy.ml)

submitted 2 years ago by Better_Rough_2554@lemmy.ml to c/green@lemmy.ml

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[–] UnreliantGiant@lemmy.ml 2 points 2 years ago (2 children)

Yeah feeding back into the grid has the least conversion losses and doesn't take additional material.

Local energy storage can be useful though for complete self-sufficiency (at least in summer), but with the currently available options there will be no return of investment, both financially and environmentally, or they just don't have enough capacity/power to keep a family powered over night. I hope EV manufacturers will continue experimenting with using EV batteries as storage for solar power, it could be a nice combo for people who need a car.

[–] poVoq@lemmy.ml 2 points 2 years ago* (last edited 2 years ago)

I rather hope that there will be a large market for refurbished EV batteries in a few years that can be still used for stationary applications.

I doubt many people would want to shorten their car's battery life to run their washing machine with it.

[–] wintermute@feddit.de 0 points 2 years ago* (last edited 2 years ago)

but with the currently available options there will be no return of investment, both financially and environmentally

Unless you build a DIY battery like this guy

he also has build a power-wall from recycled cells, which only costs a fraction and significantly improves the ecological footprint