hydro has some issues, but we can fix them, and it is legitimately clean & renewable when done well. it's also a major potential export. it's baffling that this resource has been left undeveloped for so long.

nuclear, oil, coal, etc have issues that can't be fixed.

and wind & solar are useful as supplementary, but not primary, sources.

if we get fusion or anti-matter one day, great; for now, hydro is the best thing we've got.