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Solar Savings Calculator
Get a real estimate in 60 seconds. We use NREL's PVWatts model and the 2026 post-OBBBA tax-credit reality — no inflated numbers, no sales call.
How the calculator works
Production
We call NREL PVWatts v8 with your zip-derived lat/lon to get modeled annual kWh production for your system size and roof orientation. Same model EIA and installers use.
Economics
We use your monthly bill to back-calculate annual usage at your state's average electric rate, then project 25-year savings with 3.5% rate inflation and 0.5%/yr panel degradation.
Incentives
We do not include the federal 30% Section 25D credit — it expired Dec 31, 2025 under OBBBA. State credits and major utility rebates are applied where they exist (NY, CA, AZ, IL, MA and more).
Top states for solar
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