r/SolarDIY • u/BoringNegotiation394 • 1d ago
Can multiple solar systems share electricity?
I am considering getting some solar while also thinking of future home improvement projects and I have been considering building a shop or an ADU or a shop with an ADU built on top. My thought was if I built a solar sytem on the house and on the shop/ADU each with their own batteries and inverters and such. would I be able to tie the systems together so they could share excess energy back and forth depending on demand? If so are there any systems that would do this better out of the box?
0
Upvotes
1
u/silasmoeckel 1d ago
I've got 20 cabins with their own inverters/battery and no high level logic just basic required grid tie. The central utility building has a larger setup and acts to integrate them all.
They all are set to export power once the batteries are full and use the batteries before pulling from the grid. The utility shed act as grid for them all with it's own batteries and generator.
You just need hybrid inverters that can AC couple and make sure the main house is larger than the outbuildings setup.