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542 points xbmcuser | 3 comments | | HN request time: 0.001s | source
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testhest ◴[] No.45037600[source]
Wind is only useful up to a point, once it gets above 20% of generation capacity ensuing grid stability becomes expensive either through huge price swings or grid level energy storage.
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ceejayoz ◴[] No.45037646[source]
This talking point is years out of date. We’re doing grid-level energy storage already. Expect more.

https://www.abc.net.au/news/2024-08-06/what-australia-can-le...

> For the first time ever, California's batteries took over gas as the primary source for supplying evening power demand in April, providing "akin to the output from seven large nuclear reactors" one evening, according to the New York Times.

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1. Moldoteck ◴[] No.45038087[source]
It's not out of date. BESS has different utility in different weather areas. Germany would need the equivalent of 20-30y of global bess deployments to ditch fossils, not considering realistic power transfer or weather forecast. That's why even their pro ren Fraunhofer ISE recommended gas expansion
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2. ceejayoz ◴[] No.45045848[source]
> Germany would need the equivalent of 20-30y of global bess deployments to ditch fossils

“In 2019, California had 770 megawatts of battery storage. Now, it's 14 times higher, at 10,383 megawatts, and by the end of this year, it expects to add another 3,800.”

We saw the same curve with solar and wind. 20-30 years worth today will be peanuts in the near future. You’ve outlined a very achievable goal.

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3. Moldoteck ◴[] No.45069110[source]
If you think 2-3TWh for a single country, assuming ideal conditions and no demand growth is an achievable goal, welp