What "renewable energy" is that? Solar and wind are barely scratching single-digit percentages of energy needs, and this is only because of massive government push to do it, otherwise on pure economic efficiency they'd be below even single digits (so basically now they're just burning money). Hydro can provide tons of energy, but at huge ecological cost which dwarfs nuclear. What else is there?
And many of them are quite expensive and need expensive resources like rare earths which also require significant energy to extract and produce.