What to do with surplus solar power in an island solution?

https://lemy.lol/post/62685614

What to do with surplus solar power in an island solution? - lemy.lol

What happens if the sun shines onto your solar panels, and you have too much power. I guess you could cover the panels with a blanket in such a case, but that would be manual intervention … Do you need to consume all electric power you generate? Ways of wasting power include … heating water or electrostatics. Most people would put surplus power they produce into the grid, but this is connected to government / cooperate regulations and paperwork, some would like to avoid that. An island solution with solar panels is not connected to the power grid at all…

Setup a gravitational battery. Use extra power to lift rocks/weights that you will then lower, generating power, when not enough sun.

Not common, but proven solution.

Better and more efficient: have batteries.