On 5/27/20 1:01 PM, Jay Summet via EV wrote:


On 5/26/20 10:55 PM, Alan Arrison via EV wrote:
Sounds dangerous and possibly illegal. There is no inverter that can supply the actual power you are using and not back-feed the grid.


It is technically possible, all you would need is a current sensor on the main house feed. If the current is going in, your inverter would start adding current to the house wiring until the current flow reached zero.   With modern electronics you could react very quickly if the draw dropped (current flow started to go negative) and essentially never backfeed the grid.

BTW, I believe someone mentioned that the not produced power when an inverter "cuts back" must be dissipated somewhere as heat. I don't believe that is the case; I believe the inverter can just not produce the available power with no heat generation.

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