And in this case, with all the Ice storm doom and gloom coming, to alot of the country, inform your users how to turn off their array and run a generator safely!

Offgrid is just so much easier sometimes.

 😉

Dave Angelini Offgrid Solar
"we go where powerlines don't"
   [1]https://offgridsolar1.com/ [2]  [1]
e-mail  [email protected]
text 209 813 0060

On 2026-01-21 12:55 pm, Zeke Yewdall via RE-wrenches wrote:

In that case, we're getting way off track and way more complicated :P

Just put a contactor between the PV array and the POI using the NC contacts, with the coil powered off the generator. Then the PV array can never backfeed the generator because it'll be turned off anytime the generator is running.

Zeke

------------------

Thanks but I'm just trying to grid-tie a small Enphase array without ESS where the point of interconnection is on the customer side of the generator/ATS.

Trying to use existing wires in place to simplify and lower costs...but the generator is my constraint because I need the PoI to be on line side of the ATS.

Howard "Scot" Arey
Owner, Solar CenTex
254-300-1228

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