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itsdangerous 6 points ago +6 / -0

you cannot store this amount of energy. this is PART of why renewables sux, theyre not constant.

energy companies deliver constant wasted electricity because there is no storage. ie always produce more than consumed as a buffer. well except CA.

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residue69 2 points ago +2 / -0

Developed at Washington University, so it's racist.

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pseudosapient 1 point ago +1 / -0

I mean, you can store power in almost anything. The trick is to do it in a space-efficient, weight-efficient manner with decent longevity and decent round-trip losses.

Unfortunately, these are supercaps, which tend to be great on longevity but terrible on space/weight efficiency, and lose charge over time.

They are getting ~222uWh/cm^2 which works out to ~20Wh in 100 square feet of brick wall. Note: not kWh. Wh. 0.02kWh in 100 square feet of wall.

Now, if they can scale it up - say, by further increasing surface area while not compromising structural integrity - that'd be great.

Nowhere near there yet though.