Free Calculator · Section 30C Expires June 2026
Whole-Home Electrification Calculator
Model solar, battery storage, an EV charger, and a heat pump as a complete bundle. See total net cost after all available tax credits, combined annual savings, and the optimal order to install each system.
Your Home
29.8¢/kWh · 1,700 kWh/kW/yr solar
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Solar options
Battery options
EV options
Heat pump options
Estimates use NREL PVWatts (solar), EnergySage market data (battery), HomeAdvisor averages (EV charger), NEEP ASHP specs (heat pump), and EIA 2025 energy prices. Incentives may vary by income, utility, and program availability. Consult a licensed electrician and tax professional before purchasing. Get at least 3 quotes per system.
Why Bundle All Four Systems Together?
Each electrification upgrade is valuable on its own — but they amplify each other when planned together. A heat pump adds 2,000–6,000 kWh of annual electricity demand. An EV adds another 2,000–4,000 kWh. Without solar, those new loads increase your utility bill. With solar sized to cover them, those loads are largely free.
Battery storage extends solar self-consumption by roughly 18%, capturing midday generation for evening EV charging and overnight heat pump operation. The result: a home that generates most of its own energy, charges its own vehicle, and heats and cools without burning gas — at a total 25-year cost that can be lower than staying on fossil fuels with rising utility rates.
2026 Tax Credits at a Glance
| System | Credit | Max | Expires |
|---|---|---|---|
| EV Charger (Level 2) | 30C | 30% · $1,000 | June 30, 2026 ⚠️ |
| Heat Pump HVAC | 25C | 30% · $2,000/yr | Dec 31, 2032 |
| Battery Storage | 25C (standalone) | 30% · $2,000/yr | Dec 31, 2032 |
| Solar Panels | 25D (homeowners) | Expired · — | Expired Dec 31, 2025 |
| Solar (lease/PPA) | 48E (developer) | 30% · No cap | Dec 31, 2027 |
Credits can be claimed in the same tax year if multiple systems are installed. Battery storage qualifies for 25C only when installed with solar (or as standalone with IRS guidance). Consult a tax professional for your specific situation.
The Ideal Build Order — and Why It Matters
If your panel is under 200A, upgrade first. Heat pumps, EV chargers, and solar interconnection all need capacity. One upgrade visit instead of three separate trips saves $3,000–$6,000.
Replaces both your furnace and AC. Locks in the $2,000 tax credit immediately and starts reducing gas bills. Adds 2,000–6,000 kWh/year of electricity demand that informs solar sizing.
Section 30C (30%, up to $1,000) expires June 30, 2026. Installing now saves $195–$390 vs. waiting until after expiration. Adds ~2,000–4,000 kWh/year that solar needs to cover.
Size based on your actual total electric demand: baseline + heat pump + EV. Buying after you have real heat pump data avoids undersizing. Section 25D expired for homeowners, but lease/PPA options pass 48E to installers.
Size based on real production data and your TOU rate structure. Increases solar self-consumption ~18%. Check state programs like California SGIP (up to $3,900/kWh in rebates).
Frequently Asked Questions
Individual System Calculators
Solar ROI Calculator
Deep-dive into solar payback period, 25-year savings, and break-even analysis.
Battery Storage Calculator
Compare Powerwall 3, Enphase IQ 5P, and FranklinWH on backup hours and payback.
EV Charger Cost Calculator
Total Level 2 charger installation cost including equipment, permits, and labor.
Heat Pump vs Gas Furnace
15-year total cost comparison by climate zone with Section 25C credit math.