Thank you for the quick answer Opera, it helps me understand it a little better I think. ( My understanding: The capacitors harvest the energi “between†the panel PowerPoint and the pwm voltage on point)
I have an off grid cabin in snowy Norway that I would like to upgrade in stages, first more solar, 3x300w panels and a new charge controller. This will give me excess energy most of the time and would like to use it to heat water in two stages. One tank to about 10 degrees C and one to 70degrees, the goal is to have running hot and cold water year round when we arrive. Rough calculations implies I need about 2kWH to achieve this, less with better insulated tanks.
I will probably need to augment with a small wind turbine to ensure that I can harvest enough energi from November to February.
So I would like to dump excess solar to: 1 cold water tank, 2 hot water tank, 3 space heater, Wind in the same order.
Also would be nice to manually switch energi to an element in the tank below the toilet to help the drying out process when needed.
Have read all your Arduino posts and have a grasp of the the coding required and the possibilities a micro opens up.
Will also ad a diesel heater that I can remotely control via a gsm shield to the uno.
That got long quickly, and any inputs is much appreciated:)
Sincerely
F