When building a Solar power grid or using microhydro one must plan for peak electrical use. I prefer Microhydro, but the cost of solar is getting much cheaper every year. Normally, one would float charge batteries and than burn off extra electricity to heat water , but I find that solar water heaters are better suited for this task, and excess electricity that would normally be discarded is used to mine bitcoin.

What would be the best of all worlds is using those ASICs to heat water as well to close the loop and recycle the waste heat.