[RE-wrenches] Grid Tied Inverter back feed to Generator

[Dave Tedeyan]

Jeremy,

It is my understanding that if the generator wakes up the grid tied
inverter and loads are more than the solar then maybe nothing bad would
happen. Although I would never do that because you don't have any control
over the loads. And if the solar production is more than the loads, then
the excess energy feeds back to the generator and can break things. In
other words, move the solar interconnection to the line side of the
transfer switch so that there is no chance of the generator and solar
"seeing" each other.

Cheers,
Dave

On Thu, Nov 30, 2023 at 8:20 PM Jeremy Rodriguez via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Has anyone experienced a grid tie inverter back feed a whole house backup
> generator after a utility outage?
> What can happen ?
>
>
> Jeremy Rodriguez
> Solar Installation / Design
> All Solar, Inc.
> 1453 M St.
> Penrose Colorado 81240
>
> Sent by Jeremy's iPhone. Sorry for typos and shorthand.
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Dave Tedeyan, P.E.
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