Just two items about Nuclear Power as a clean energy source:

1. Use of Spent Nuclear Fuel as a power source for reactors ( see Bill Gates Terra Power prototype reactor being built in Wyoming)

2. Modular Nuclear Reactors (safer and less costly to build than conventional reactors: https://www.energy.gov/ne/articles/nations-first-small-modular-reactor-plant-power-nuclear-research-idaho-national