Hydro has some great characteristics that contribute to carbon-free generation. MISO, which covers a huge portion of the US upper Midwest starts most of its mor

Hydro has some great characteristics that contribute to carbon-free generation. MISO, which covers a huge portion of the US upper Midwest starts most of its morning ramp-up on hydro. Aside from its environmental concerns, it will be of limited use in decarbonizing the economy because pretty much all of the useful locations have already been developed.