I'm not sure whether nuclear is better, and renewables definitely is a good thing to have in the mix. But comparing the carbon emissions of Germany and France, and the cost of electricity in both countries would suggest that at least currently, renewables without nuclear isn't as effective for supplying our power needs as renewables with nuclear.
If I've misunderstood this somewhere, I would love to learn more.
If I've misunderstood this somewhere, I would love to learn more.