Using a Tesla S battery as a baseline, it gives you 85KWh at $30,000, or 2.83KWh per $1000.
$1500 would give you 4.25KWh. The average home averages 1KW, so you'll have 4.25 hours.
Obviously you could get more efficiency with a stationary battery.
$1500 would give you 4.25KWh. The average home averages 1KW, so you'll have 4.25 hours.
Obviously you could get more efficiency with a stationary battery.
Even cutting to 80%, you get an extra hour. 50%, and you've got 4. I am having a hard time finding refrigerator specifics, but around 1000KWh annually seems to be on the high side. This gives you 1.5 days on the 4.25KWh battery.