On 8/20/19 5:56 PM, Jay Summet via EV wrote:
On 8/20/19 4:03 PM, Willie via EV wrote:
I'm enamored of the Enphase grid ties; I have a fair amount of
experience with them. I've seen a lot of what I refer to as "cheap
chinese" inverters work poorly, run hot, fail. The Enphases are near
bullet proof.
You'll definitely need to check the car-> DC2DC converter ->
Microinveter combination to make sure it works with your powerwall and
ATS when the grid is down.
My advice would be to have a separate DC2DC converter for each
microinveter, rated above the microinverter's peak power. Hopefully when
the microinverter is working at max power the MPPT algorihtm won't take
offense at being fed from a power supply instead of a solar panel.
Perhaps something like this 12->24v 480 watt inverter:
https://amzn.to/2HgKlc8
I did order one of those off of eBay. I also ordered several cheaper
adjustable, supposed 1.8kw, units.
I do intend to start by testing one inverter; it that works, I'll try
two on the same power source. And so on. From a clutter and complexity
stand point, I'd rather minimize the number of power sources.
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