Solar + EV Savings Calculator
See how much you save by combining solar panels with an EV. Get real production data, EPA vehicle efficiency, and a 25-year financial projection.
Urgent tax credit deadlines
- Section 48E phase-out completes December 31, 2027 — the last date to begin construction; grandfathered 2026 starts have until Dec 31, 2030 to be placed in service (421 days left).
Your Details
1–25 kW
MPG of the gas car you'd replace
Auto-filled from ZIP code
Your Results
Annual Solar Production
—
kWh/year
EV Annual Energy
—
kWh/year
Solar Coverage
—
of home + EV
Combined Annual Savings
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per year
CO₂ Reduction
—
tons/year
Panels needed for EV charging alone
Whole panels covering EV charging only, at your system's production
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panels (400W-class)
Model: panels = ceil(daily EV kWh ÷ per-panel daily kWh), per-panel = production per kW × 0.4. Rounded up - panels come in whole numbers.
| Year | Savings | Cumulative | Net Benefit |
|---|
Effective 2026, the federal residential solar tax credit (Section 25D) has expired. New systems no longer receive the 30% federal credit unless grandfathered under Section 48E (construction began before July 4, 2026).
Ready to Go Solar + Electric?
Get multiple quotes from certified solar installers in your area and compare real pricing side-by-side.
Get Solar QuotesEnter your ZIP code, system size, and driving habits above to see your combined solar + EV savings.
Data sources: Solar production from NREL PVWatts V8 API. Vehicle data from EPA FuelEconomy.gov. CO₂ factors: 0.771 lbs/kWh (eGRID2023 Rev2 U.S. average), 19.6 lbs/gallon gasoline. Actual savings vary.