My favorite fact related to this chart is the fact that the 2020 peak load of 47k MW briefly (for 1-2 hours in the evening) caused rolling blackouts in California. The higher peaks in 2022 and 2024 did not result in blackouts. The difference was all batteries. 🔋

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Joe Deely

@jdeely · Twitter · 2026-08-27 12:57 UTC

The @CaliforniaISO grid set a new peak demand for 2026 last night at 46,615 MW. Here is how that fits with demand records for recent years.