If you have excess electric capacity, I think there are more convenient things to produce, such as aluminum. It lasts forever, it's easy to transport, producin

If you have excess electric capacity, I think there are more convenient things to produce, such as aluminum. It lasts forever, it's easy to transport, producing it is very energy-intensive, and there's a constant demand. E.g., aluminum is a big industry in Iceland thanks to its cheap geothermal/hydro energy.