Estimate solar battery payback using installed cost, usable capacity, daily cycling, import price, export rate, and maintenance.
Formula
const spread = Math.max(0, inputs.grid_price-inputs.export_rate); const annual_savings = inputs.usable_kwh * inputs.daily_cycles * 365 * spread - inputs.maintenance; const payback_years = annual_savings>0 ? inputs.installed_cost/annual_savings : 0; const ten_year_value = annual_savings*10 - inputs.installed_cost; return { annual_savings: Math.round(annual_savings), payback_years: Math.round(payback_years*10)/10, ten_year_value: Math.round(ten_year_value) };Installed Battery Cost
12,000
Usable Battery Capacity (kWh)
10
Average Daily Cycles
0.8
Grid Electricity Price per kWh
0.32
Solar Export Rate per kWh
0.08
Annual Maintenance / Degradation Cost
100
Use the result to compare providers, request quotes, or send the scenario to a specialist when the numbers matter.
This solar battery payback calculator estimates annual savings, payback period, and 10-year net value from installed battery cost, usable capacity, daily cycling, import price, export rate, and maintenance. Use it to check whether a battery quote is financially justified or mainly a resilience purchase.
Use this energy calculator to compare scenarios before committing money, time, or a provider conversation.
The estimate combines Installed Battery Cost, Usable Battery Capacity (kWh), Average Daily Cycles and returns Annual Savings, Payback Period, 10-Year Net Value.
If the result changes your decision, verify the current quote, rate, eligibility rule, or provider term before acting.
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This calculator is provided for educational and informational purposes only. It does not constitute professional legal, financial, medical, or engineering advice. Results are estimates based on the inputs provided and should not be relied upon for making significant decisions. Consult a qualified professional to verify your specific situation. CalculateThis.ai disclaims any liability for damages resulting from the use of this tool.
Reviewed by the CalculateThis.ai editorial team. Updates: check back for latest parameters. Tools are for estimation only — verify with current provider terms.