Updated for 2026 — Federal solar & heat-pump credits expired end of 2025

Home Energy & Electrification Hub

Solar · Heat Pump · EV

Free calculators for all 50 U.S. states across the full electrified home. Real EIA electricity rates, NREL PVWatts production data, and sourced incentives — so you get the honest answer for your state, not a national average. No sign-up, no email wall.

  • 50-state data — EIA rates & NREL PVWatts, sourced
  • Solar + Heat Pump + EV — full electrification math
  • Free, private — no sign-up, runs in your browser
Direct answer
2026 direct answer: the 30% federal residential solar credit (Section 25D) expired Dec 31, 2025 and does not apply to 2026 installations. Solar is still worth it in states with high electricity rates and strong incentives — payback ranges from ~8 years (Massachusetts, New Jersey, New England) to 15+ years (low-rate, weak-policy states). Every state page shows the real EIA rate, NREL PVWatts production, net metering, and incentives with sources. The commercial 48E credit still applies to leased/PPA systems.
2026 reality check: the 30% federal residential solar tax credit ended Dec 31, 2025. Payback periods are now 2–3 years longer in most states. State incentives matter more than ever — and they vary wildly. That is exactly what this site is built to show you.

Solar Calculators

Solar ROI Calculator

Calculate solar payback period, 25-year savings, and ROI for your state. Real EIA electricity rates, NREL PVWatts production, and state incentives — updated for 2026 (federal ITC expired).

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Reverse Solar Payback Calculator

Work backwards: set a target payback period and see what electricity rate, export credit, or state incentive you need to hit it. Free, instant, no sign-up.

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Compare Solar Economics Across States

Compare electricity rates, solar production, payback period, and state incentives side by side for any 2–3 U.S. states. Free interactive comparison tool.

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Is Solar Worth It For Me?

Answer 5 quick questions about your state, electricity bill, roof, and plans. Get a personalized green / yellow / red verdict on whether solar is worth it for your home in 2026.

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Solar Financing: Cash vs Loan vs Lease

Compare the real 25-year cost of buying solar with cash, financing with a loan, or leasing. See why cash has the highest IRR and leases deliver the lowest long-term value.

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Solar Battery Payback Calculator

Estimate whether adding battery storage to your solar system pays off — critical for NEM 3.0 states like California where export credits are low.

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SREC Income Calculator

Estimate annual and 15-year income from Solar Renewable Energy Credits (SRECs) in NJ, MD, IL, PA, and other SREC states. Current 2026 market prices.

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Solar System Size Calculator

Find the right solar system size in kW and number of panels for your home, based on your electricity usage, state, and coverage goal.

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Solar + EV ROI Calculator

See how adding an electric vehicle changes your solar payback: EV charging cost, fuel savings vs gas, and the combined solar + EV payback period for your state.

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Electricity Rate Sensitivity Calculator

See how much electricity price escalation (0%, 3%, or 6% per year) changes your solar payback period, 25-year profit, and IRR. Utility rates are the biggest lever in solar ROI.

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Fastest Solar Payback States (2026, 6 kW @ $3/W)

RankStateElectricity (¢/kWh)Est. PaybackNet MeteringHighlight
#1New Jersey23.3~0.6 yrFull retailSREC ~$85/MWh
#2Illinois19.1~0.7 yrFull retailSREC ~$75/MWh
#3Maryland21.2~0.7 yrFull retailSREC ~$65/MWh
#4District of Columbia24.6~0.7 yrFull retailSREC ~$40/MWh
#5Massachusetts30.1~0.6 yrFull retailSREC ~$30/MWh
#6Delaware17.4~0.9 yrFull retailSREC ~$30/MWh
#7Pennsylvania20.8~0.8 yrFull retailSREC ~$25/MWh
#8Ohio18.4~1.1 yrFull retailSREC ~$8/MWh

Estimates for a 6 kW system at $3.00/W with ~15% average state-incentive offset, 70% self-consumption. Not a quote. See the full 50-state ranking.

Solar by State

Every state has its own electricity rates, production, net metering rules, and incentives. Browse the state guides to see exactly what solar pays where you live:

Why PVFig Exists

Generic "is solar worth it" answers are useless because solar economics are hyper-local: a 6 kW system pays back in ~7.6 years in Massachusetts but ~18 years in Idaho — a 2.4× difference driven by electricity rates, sunlight, net metering policy, and state incentives.

PVFig compiles real, dated, sourced data for all 50 states (EIA rates, NREL PVWatts production, DSIRE incentives) and turns it into interactive tools you can actually use — plus honest go/no-go guidance. No lead capture, no sales calls.

Data & Policy Pages

Beyond the calculators, these dated research pages answer the questions AI gets wrong in 2026:

Data sources & methodology

  • U.S. EIAResidential electricity rates by state (2026).
  • NREL PVWattsSolar production estimates by location.
  • DSIREState solar incentives, rebates, and net-metering rules.

Methodology and citations are maintained by the PVFig editorial team. Where an official schedule is not yet loaded, results are shown as model estimates and the source is stated as a reference.

Pair solar savings with the money math. PVFig covers solar ROI and incentives. For everyday money — take-home pay after the system pays off, state income and sales tax, budgeting, and home affordability — use our sister hub AllMoneyCalc’s State Money Tools Hub, which maps free calculators to all 51 states + D.C.
Solar panel cleaning & maintenance. Dirt, pollen, and bird droppings can cut output by 5–25% depending on your region and tilt. Learn upkeep cadence and safe-cleaning methods in our solar cleaning & maintenance guide, then model the payoff with the payback calculators above.

Browse by topic

Is solar worth it? Start with the right tool

Solar Payback by State
50-state payback periods and ROI for your system size.
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Solar Incentive Finder
State credits, rebates and net-metering rules.
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Heat Pump Hub
Sizing, vs-furnace TCO and 50-state rebates.
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EV Hub
Charging cost, install and 5-year ownership.
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2026–27 Incentive Changes
Every dated state policy change.
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Topics Hub
Every calculator, guide and dataset in one index.
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