Energy Insights

The Energy Commission collects and analyzes data on California’s energy  consumption and generation. Energy Insights highlights analysis of emerging trends in the energy sector and deep dives into energy policy topics.

Saving Hydropower for a (Not So) Rainy Day

Figure 2 - Hydro generation 95th percentile profile from summer 2015 and 2021. Peak generation is higher in spring 2021 than spring 2015, even though overall generation is lower.

When water is scarce, California saves hydropower for when the grid needs reliable, clean energy most.

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