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Enter capacity + price to see your cost per usable kWh vs 2026 LiFePO4 market ranges.
Open tool →Size a backup by essential load + hours, with PV recharge for multi-day outages.
Open tool →Grid-charged backup sizing plus payback from peak/off-peak arbitrage. No panels needed.
Open tool →Estimates use a 0.9 round-trip efficiency and 1 arbitrage cycle/day. Figures are indicative; a tailored quote confirms exact sizing and pricing.
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For grid-tied self-consumption, size to about 60% of your daily use. Off-grid, size to 1.5x your net daily use after solar. The calculator above maps the result to a concrete NovaBESS model.
Typically 6–12 years depending on peak/off-peak spread and cycles/day. Higher rate gaps and daily arbitrage shorten payback.
No. A battery also earns from peak/off-peak arbitrage and provides backup. Solar multiplies savings but is not required. If you have no panels, size one and see the arbitrage payback in our home battery backup without solar calculator.
Yes. NovaBESS HomeStack modules parallel from 5 kWh up to 60 kWh, so you can start small and add later.
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