Hydro is still vulnerable to downturns, though they need to be more prolonged to equal what's happening with the wind in this report. (California's 2021 drought

Hydro is still vulnerable to downturns, though they need to be more prolonged to equal what's happening with the wind in this report. (California's 2021 drought is a good example of how hydro power can fall short.) I mentally think of power generation reliability as: Uncontrollably variable from hour-to-hour: wind, solar, tidal motion Uncontrollably variable on month-to-year spans: hydro Pretty controllable: nuclear (and fossil fuels)