If I had a grid tie inverter and the power was out, could I isolate the line side with the appropriate transfer equipment and switch in a small battery operated inverter to tickle the array back into operation and then run offline (using appropriate load management)?
Once it was going, the load on the battery inverter should be nil because the grid tie would be putting out a slightly higher voltage. You could then use some of the developed power to trickle charge the battery.
For that matter the "battery" could just be a 12v solar charger.
I know this sounds like a perpetual motion machine but the power is coming from the sun. The only question is how you handle sundown.
The solar charger would deal with that.
With a battery you would need some kind of diode isolation and a push to start button.
You could certainly make the controller smarter but I was just wondering if the idea would work.
