Re:California invests in battery energy storage, leaving rol...
by onlyrealcuzzo on Sunday October 26, 2025 @01:35PM
(#45713707)
From a grid perspective, the output (delivery) is typically more important than total capacity - because it's acting sort of like a power plant.
Power plants don't have capacity, really.
So you hear about the output GW, not the capacity GWh.
For battery plants, they might mention duration (4 - 6 hours), which makes converting to capacity in terms of GWh trivial.
"Battery energy storage is not without challenges, however. Lithium-ion batteries — the most common type used for energy storage — typically have about four to six hours of capacity. It’s enough to support the grid during peak hours as the sun sets, but can still leave some gaps to be filled by natural gas."