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Hi everyone... Maybe my Google search skills are poor, so please feel free to point me to another thread... I want to have DIY battery backup in the basement for the fridge and lights, which are on a different floor. The electricity is sent up to the floor via a subpanel with a breaker that...

Wow, I had to draw out the diagram to visually get it. Thanks for the help!! I am a little worried that it is not UL because it's not like I'm powering a few lights, I intend to power the entire floor with selective breakers on and telling the residents to not use their hot water tea kettle...

Hi svetz, thanks much for your input... This is **almost** perfect, excepttttt because of my layout, my transfer switch will be located on a different floor and I can't run a second romex line to the upper floor to have a critical loads panel... Also because of this same layout and backup needs...

Hi everyone, I'm posting this message because wire types seem to not have a lot of DIY comprehensible information on the interweb. My inverter manual recommends 4/0 AWG wire for the low voltage hookup, and the first thing I saw was welding wire for $5 a foot and then I saw 4/0 THHN cable at $1...

I guess the 4/0 for $1 a foot I'm looking at is aluminum.

Just wondering if anyone can comment on a manual transfer switch that seems to be the most common solution to preventing backfeed to the grid versus something like this: rotary switch... Looks like the rotary switch serves the same purpose as the transfer switch, minus the built in breakers...