Post #1883146
2023-06-04 10:24 UTC
But you cannot charge a fully charged 5MWh battery any further and will only ever get <5MWh out of it. And once discharged, you need electricity to charge it again, rather than just refilling a tank. Plus, batteries have a much lower energy density than fossil fuel. The latter is why most batteries are not well suited for storing considerable amounts of energy: A 10MWh battery plant is the size of a school's gym, while a 1MW diesel generator and 10h worth of fuel easily fit into 1–2 containers.
Replies (1)
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@sbi@toot.berlin 2023-06-04 10:26
So you need to keep some of your generators as backup because fossil fuel can be stored cheaply and almost without losses. But you get to turn them off for long stretches, significantly reducing fossil fuel use and mechanical wear on them. Hence, by using batteries, you can increase the renewable share in your grid, thereby helping to save this planet. And to top it all off you also save money! In fact, there are many companies making a profit by selling this technology to other companies.