Suncipher

ROI Calculator

A general-purpose ROI and payback calculator for any home energy upgrade.

This is a general-purpose ROI calculator for any upgrade. For solar specifically (including panel degradation and utility rate escalation), see the Solar ROI Calculator.
This tool provides a planning estimate based on the assumptions shown below the results — it is not a quote, and actual costs and savings will vary by installer, local rates, and your specific home.
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Enter your project cost and savings to calculate ROI and payback.

How this calculator works

Total lifetime savings = annual savings × system lifespan. Total lifetime cost = upfront cost + (annual maintenance × lifespan). ROI = net return ÷ total cost. This is a simple, non-discounted model — it doesn't account for inflation, financing cost, or a rising utility rate over time. For solar specifically (which includes panel degradation and rate escalation), see our Solar ROI Calculator.

Source: Standard simple ROI / payback methodology, last updated 2026-07-01.