Guru
Joined: 26/09/2020
Location: AustraliaPosts: 647
| Posted: 08:31am 07 Jun 2025 |
I have a similar setup as KeepIs.
i have an 80 litre hot water tank and a small solar setup on a shed. I changed the element in the tank to a 750 watt element.
And as the small system has a 24 volt 100 amphour battery bank with an mppt controller I just use a combination of a Timer to bring the unit on between the best hours of sunlight that the panels get, and a voltage controlled relay that switches a solid state relay on to power the element.
It works pretty well, and I have hot water to wash my hands after working in the shed.
Pete