Hot Water Diverters... Why?
Exploring solar, haven't even started to work towards installing yet but trying to educate myself early on.
I keep seeing either marketing or forum posts discussing HWC diverters, so your 'excess solar heats your water instead of going to the grid'. What excess solar are you talking about?
A HWC runs on the same power as my entire house, so surely it's being powered by a combination of solar and mains already.
Unless everyone's just.. turning off their cylinders and letting them go cold when they're not generating power? Taking cold showers in the morning?
Edit: Got a much better idea of things now, thanks to all who answered. I was thinking in terms of a home where solar had been added with the house appliances still working as-installed. Now I get that a HWC diverter is upgrading/changing the operation of the cylinder itself, and not some voodoo magic somehow diverting more power to the factory cylinder.