The fact is that hydro electricity is one of the most natural ones. Hydro, solar and wind. And they are just a small part of energy produced. In Slovenia just few days ago come out a law that increase barriers for non government organisation when complaining on plans for such projects. So investors should have an easier job. But in Slovenia there is not that many hydro plants left to be built. The building of those that are left to be built is way behind the plans from 50 years ago.
We need to get energy from somewhere. We know coal and oil and gas are bad. If hydro because of fishes and wind because of birds are also bad we are only left with solar that can happen only at day. And is less end less effective as far from equator you live. Or nuclear power plant. In a world of today where everyone can get crazy having nuclear power plant with nuclear waste is a quite dangerous thing.