Solar Off Grid.  PV Solar Matched to Heating Element .

Author	Message
KeepIS Guru Joined: 13/10/2014 Location: Australia Posts: 1757	Posted: 10:56pm 11 May 2023       The simple Solar hot water system controller I made at the beginning of the year, powered with only 6 old solar panels, is still heating our HWS to full temperature daily, we have not turned on the Mains powered HWS since the first day I switched the smaller solar powered unit on, it has been faultless. The element voltage is a non event, PWM control it to less then, or up to, the max rated AC voltage it was designed for and it runs perfectly. .