Tech & Energy
TOU Battery Arbitrage Calculator
Time-of-use rates can vary 4x between off-peak and on-peak. A home battery can arbitrage that — but only if the spread covers cycle wear.
Annual savings
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- Per day
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- Spread per kWh
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- Net of cycle wear
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FAQ
Pay attention to round-trip efficiency? +
Yes — LFP runs 88-94%, lead-acid 75-80%. Lower efficiency eats your spread.
Worth it without TOU? +
No — flat rate plus battery loses money. TOU or peak demand charge structures make arbitrage viable.