RustyShackleford wrote:The rub for me is the well pump, which is on a 2-pole/20-amp breaker; I don't know how much power it actually draws, but I gotta figure it's more than the rig in the link. They don't seem to be harvesting nearly all the power the Leaf is able to provide to its motor. I see a DC-to-DC converter mentioned. Does this mean the battery's output to the motor is at a voltage higher than 12vdc, and the 12v power out is limited by that converter ?
Yeah, much higher. The "traction battery" is on the order of 400V. Think of the converter as the analog to an ICE car's alternator in that it keeps the 12V system supplied.
I guess I'm SOL as far as the well is concerned, unless I can somehow tap directly into the battery's output and find an inverter than runs on that (presumably higher) voltage. Probably not likely.
Definitely a more complex proposition. Nissan keeps threatening to bring their "LEAF-to-Home" product to the US, and that system would be what you're thinking off; deriving its power directly from the main 400V bus. I believe it can output up to 6kW. It's been in Japan for years but I'm not sure what the status is for the US market.