not to be rude but hydro damns have been terrible on the wildlife ecological systems and ruining habitats for a lot of animals. I do agree we need more green power which is going to happen sooner or later. the biggest problem with hdyro is the water is people are using it inefficiently and emptying lakes.
A little side note look into the hoover dam.
Battery and energy storage are the key to renewables and we are almost there, the next few years promise major breakthrough in energy storage and this makes grids much more efficient in balancing loads without firing up peaking plants. Wind solar, tidal and other energy resources can then be exploited if we have efficient energy storage, fusion reactors and even thorium ones might be used and fusion power could be closer, even though it has long been promised. All automakers are going EV for a reason, the battery technology is arriving and should improve dramatically over the next 5 years.
Hydro is not a preferable energy source, but it is better than most and has more environmental impact in some places than others, often hydro dams have the dual function of flood control and water management, many are being removed when they are no longer needed.
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