grid tie issue with generator

stevehull · 07-08-14, 06:27 AM

I am in the engineering phase of putting up ~ 10kW of solar PV. However, I do need an answer to an situation we have here.

Power outages are not uncommon and I require generator backup for watering livestock, keeping freezers going and other essentials.

I understand that the proposed Enphase microinvertors system cuts off PV AC power output when grid connection is lost. But what if I turn on the generator?

The system I have is a manual transfer switch and I use a power take off generator attached to my tractor.

This generator power would "trick" the microinvertors to think that grid AC is available.

In the case of a power outage, do I manually turn off solar PV. How is this done?

Steve

07-08-14, 06:27 AM	#1
stevehull Steve Hull Join Date: Dec 2012 Location: hilly, tree covered Arcadia, OK USA Posts: 826 Thanks: 241 Thanked 165 Times in 123 Posts	grid tie issue with generator I am in the engineering phase of putting up ~ 10kW of solar PV. However, I do need an answer to an situation we have here. Power outages are not uncommon and I require generator backup for watering livestock, keeping freezers going and other essentials. I understand that the proposed Enphase microinvertors system cuts off PV AC power output when grid connection is lost. But what if I turn on the generator? The system I have is a manual transfer switch and I use a power take off generator attached to my tractor. This generator power would "trick" the microinvertors to think that grid AC is available. In the case of a power outage, do I manually turn off solar PV. How is this done? Steve __________________ consulting on geothermal heating/cooling & rational energy use since 1990