Solar Battery ROI Calculator
Estimate battery NPV, simple payback, benefit-cost ratio, delivered energy, and backup duration using project-specific cost, throughput, tariff, and discount-rate assumptions.
Solar Battery ROI Calculator
Enter project cost, annual battery throughput, tariff values, and financial assumptions. Get net present value, year-one net benefit, simple payback, benefit-cost ratio, delivered energy, and a capacity-based backup estimate.
Calculated result
Battery cash-flow estimate
Enter project assumptions to calculate a result.
- Net upfront cost
- $0
- Year-one net benefit
- $0
- Simple payback
- Not reached
- Benefit-cost ratio
- 0.00
- Lifetime delivered energy
- 0 kWh
- Backup duration at entered load
- 0 hours
Method used
Delivered energy equals charged energy multiplied by round-trip efficiency and the annual degradation factor. Annual avoided-purchase value is reduced by the export credit forgone, O&M, and entered replacement costs. NPV discounts each year’s net cash flow to year zero.
Planning estimate only. This is not a time-series dispatch model and does not determine tax eligibility, tariff eligibility, demand-charge savings, outage probability, equipment life, warranty compliance, or engineering suitability. Verify inputs with the utility, equipment provider, tax adviser, and project engineer.
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