Solar Off Grid.  PV Solar Matched to Heating Element .

Author	Message
Murphy's friend Guru Joined: 04/10/2019 Location: Australia Posts: 671	Posted: 02:24pm 10 May 2023       You may be *very* disappointed if you try to power a heating element directly from solar panels. You see, the sunshine is not always constant, nor is the alignment of your panels unless you use an expensive tracker. Solar panels have a maximum power point that constantly changes with changing solar input. There is *no* way I know that a fixed wattage heating element can be matched to solar panels when their output is always changing. So, some electronic trickery is required to get the best power to a given element in any solar condition. My system even works in overcast conditions where a directly connected element would give you no heat to speak of. I have a suspicion that your video man realised at last that the sun's output *does* change and he cannot change the heating element resistance to suit.