No, but hydroelectric works pretty well. There's a reason they recycle aluminum, etc. (power-hungry industries—crypto-mining, ha ha) along the Columbia River, etc.

So build your data centers there. No reason to choose the least evil.

Hydro electric as a resource is probably mostly exploited - are there a lot of big hydro projects left to build? If there are they must be difficult or expensive or they would have already been built.

The Green movement in Australia was started over the successful blocking of a hydroelectric dam. Rivers are usually highly ecologically significant.