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...
Forum Discussion
Taking all this to its logical conclusion, having a completely electric RV, even the motor (or perhaps have each wheel be its own independent motor) would be interesting. The gas engine can be completely chucked and a high wattage, variable RPM, inverter generator with common-rail fuel injection be put in its place. The batteries can be merged into something like the packs on the Prius/Volt/Tesla/Leaf, with a high wattage inverter used for all subsystems (dash A/C, overhead A/C, etc.) On shore power, it would not just be ready for boondocking, but ready for the road.
Now add some electric grid smarts, and when it is in storage, it slowly charges from shore power. If there is a blackout, and the electric company gives the signal, it would have the ability to backfeed, perhaps running the generator (assuming the owner gave permission) to help keep parts of the grid online for a good long while (well, until the gas gets to 1/4 tank or so.)
Now add some electric grid smarts, and when it is in storage, it slowly charges from shore power. If there is a blackout, and the electric company gives the signal, it would have the ability to backfeed, perhaps running the generator (assuming the owner gave permission) to help keep parts of the grid online for a good long while (well, until the gas gets to 1/4 tank or so.)
