Home brew Arduino MPPT controller
Pretty cool project. Highly programmable. He does not list the amps it is capable of but I'm thinking 4-8 only based on the diode sizing. There are some very sophisticated MPPT algorithms out there...
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See if you are doing that, then it's time too to synch controller+inverter with the other sources as well, with hybrid car type strategies like use as much battery as possible first vs as little as possible/charge battery...etc. Really a hybrid car control strategy model coupled to a genset instead of wheels has a lot of the right capability.