You can also let the dam fill up more when the sun is shining and use more of that power later. I dont think it's quite appreciated enough how well hydropower

You can also let the dam fill up more when the sun is shining and use more of that power later. I dont think it's quite appreciated enough how well hydropower - including existing hydropower installations and new ones like snowy 2's 350 GWh battery - helps offset the variability of solar and wind. Not everything has to be offset with a lithium ion battery pack or an overpriced nuclear power station.