You my consider getting an extra electric water heater and dumping the excess energy into it.🤔
I ducted the air intake from the attic, which almost always has hot air in Alabama. So it's basically free heat energy being pushed into the 50 gal water tank (through the built-in heat pump of the water heater).
I thought about doing the excess power-to-heat-water-heater thing some people use. But I didn't want my hot water to be intermittent. LOL