EOL for a nuke plant in measured in centuries. Refueling measured in decades. Wind turbines have end of life somewhere between 5 and 10 years.

Hydro is limited by geography, and wind and solar requires a metric fuck ton of oil to produce and replace at EOL. You want clean, you want nukes.

Closed loop is absolutely the right answer, and easily regulated.

As to your other two points, the answer is obvious. Nuclear.