[ared38]

Honest question: I thought the big problem with solar and wind is what to do on windless nights. AFAIK battery technology is nowhere near good or cheap enough.

Nuclear seems like a solution to that gap. What are others?

[pesfandiar]

You don't necessarily need batteries to store energy. For instance, see https://en.wikipedia.org/wiki/Pumped-storage_hydroelectricit....