Home Solar Battery ROI Calculator
Considering a home battery to pair with solar or for backup power? This calculator projects your cumulative savings year by year, accounting for battery degradation and incentives, to estimate your payback period and long-term ROI.
About this calculator
Project the multi-year return on investment for a home solar battery storage system based on installation cost, incentives, energy savings, and battery degradation.
Frequently Asked Questions
What does battery degradation mean for savings?
As batteries age, they lose some storage capacity each year, which slightly reduces the energy savings they can provide over time. This calculator models that decline.
Does this include the federal solar tax credit?
You can enter any applicable incentive percentage, including federal, state, or utility rebates, and it will be applied to your upfront installation cost.
What's a good payback period for a home battery?
Many homeowners consider 7-12 years a reasonable payback period, though this varies widely based on electricity rates, incentives, and usage patterns.