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A comment on In the US, it's cheaper to build and operate wind farms than buy fossil fuels. Parent comment

Re:In the US, it's cheaper to build and operate wind farms t... by new_realist on Monday August 19, 2019 @08:58AM (#20737300)
Cost increases linearly with capacity, which is undesirable at scale. You want sublinear scaling. For example, to store a year’s worth of US electrical generation using batteries would cost approximately 500 trillion dollars.
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Re:In the US, it's cheaper to build and operate wind farms t... by et2o on Friday August 23, 2019 @11:11AM (#20778435)
1) Huge number, but why would you need an entire year of energy in reserve 2) If there was a desire to build that many batteries, cost would surely decrease exponentially as new mines, factories, etc. open up and competition increases.
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