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A comment on Europe's deepest mine to become giant gravity battery. Parent comment

Re:Europe's deepest mine to become giant gravity battery by Faaak on Thursday February 08, 2024 @04:27AM (#39299996)
I've participated in grid stabilization in Switzerland (ancillary services), and 100kW is absolutely nothing. As far as I recall, 10 years ago, the minimum needed to become a participant was 10MW
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Re:Europe's deepest mine to become giant gravity battery by danans on Thursday February 08, 2024 @12:28PM (#39304799)
Even in the US, I'd bet that few entities bid into the ancillary services markets at only 100kW because the economics don't add up when you are using batteries (due to high fixed costs).

However, having the lower minimum has the advantage of allowing smaller firms to participate (i.e. companies controlling 100s of electric water heaters), instead of just massive utilities.

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