Of What Use Are Windmills and Solar Panels?

• Windmills and solar panels cannot follow demand.
  • If your hospital goes dark, you have a problem.
  • If your foundry freezes, you have a problem.
  • If your smelter freezes, you have a problem because the inner shell will crack.
  • If the oven in your bakery goes cold, you have a problem....

• Assuming you're willing to accept their risk, they could be used for problems that tolerate variable supply:
  • Desalination.
  • Charging batteries.
  • Extracting CO2 from seawater using PARC Bipolar Membrane Electrodialysis.
  • Pumping water....