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diy solar

diy solar

Safe shut down for grid tied solar panels (no storage)

CaliSunHarvester

Solar Wizard
Joined
Dec 25, 2022
Messages
1,331
Location
Santa Cruz, California, USA
From the house to the solar panels there are these shutoff, in this order

1) AC main panel, has 2 breakers for solar feeding to grid

2) AC disconnect blade switch

3) inverter has a flip switch (inverter on/off) and also a very big DC safety disconnect switch

4) DC disconnect blade switch

5) the panels (no switch here)

It's been 4 years and I think back then, I flipped the AC blade switch first off, then the DC disconnect blade switch. My thinking was that this emulates a power outage, inverter should shut down anyway then.

But what is the safest order of shut down?

And start up in exact reverse?
Notes_240711_180824.jpg
 

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