Quote:
Originally Posted by freebeard
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The battery solves no problem so long as a grid connection is required.
There are inverters that accept both AC and DC input for emergency power. When the grid goes down, it disconnects from the grid and then accepts generator or battery input to continue powering the home.
It's way more cost effective to connect a genset that only cost a few hundred bucks than to estimate how many days you'll be out of power and size a battery bank accordingly.
Going off grid is even more miserable because as I have stated, both me and freebeard would have to size the solar array 5x+ larger than needed in early summer to get through winter. Same goes with battery storage.
The only scenario in which it makes sense to have battery storage is to load shift to avoid peak TOU rates, or you live in Hawaii and it's cheaper to just go off-grid.