this post was submitted on 12 Mar 2026
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[–] artyom@piefed.social 7 points 2 hours ago (1 children)

That's what I have. Basically a small-ish parallel electrical system that runs critical loads like a mini split, refrigerator, water heater, etc. And a small UPS for modem/server.

[–] clif@lemmy.world 1 points 1 hour ago (1 children)

Out of curiosity, how do you have that setup (at a high level)?

I've got a bluetti system for emergency power (12kWh, 6kW AC output) but I need to plug things directly into it. It'd be nice to feed it directly to my house wiring but ... selectively. That is, I wouldn't want to power the HVAC but it would be nice to not have to shuffle the fridge/freezer plugs from the wall to the inverter.

Dedicated circuit(s) with a manual switch from mains to inverter, I'm guessing? But then we get into all the extras required to do that safely and avoid back feeding the grid.

Granted, they have systems/setups specifically for whole house power but I don't want to feed the whole house, just the important circuits/appliances.

[–] artyom@piefed.social 1 points 19 minutes ago* (last edited 18 minutes ago)

Basically made a really sturdy pergola and then mounted solar panels to it. Ran that wiring to the MPPT, batteries and inverter in the garage. Put in a new small breaker box right next to the existing one, which made it real easy to just grab the wires for the critical loads and run them over to the new panel.

No need to worry about backfeeding, as I said they're parallel electrical systems, so it's not possible.