Question 1

What is home battery arbitrage?

Accepted Answer

Home battery arbitrage means charging your battery when electricity is cheap (typically overnight off-peak at $0.06-0.10/kWh) and using that stored energy when rates are high during peak hours ($0.25-0.45/kWh).

Question 2

Can I make money with a home battery?

Accepted Answer

You can reduce your electricity bill substantially with a home battery in markets with high peak-to-off-peak spreads (like California, Hawaii, and New York), saving $400-800 per year per battery cycle.

Question 3

Which utility rates work best for battery arbitrage?

Accepted Answer

Battery arbitrage is most valuable under time-of-use rates with large peak-to-off-peak spreads exceeding $0.15-0.20/kWh.

Home Battery Arbitrage Calculator