In general, experts say, solar and wind generation is wildly inconsistent, with a lot of it based on the season. In related instance, the American State of California had invested heavily in solar power. California produced so much solar power on those days that it paid Arizona to take excess electricity its residents weren’t using to avoid overloading its own power lines. “All told, those transactions helped save Arizona electricity customers millions of dollars in 2017, though grid operators declined to say exactly how much. And the surge in solar power could push the number even higher in the future.

Source: Punch January 15, 2018 12:38 UTC