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).
Try it →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.
Try it →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.
Try it →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.
Try it →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.
Try it →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.
Try it →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.
Try it →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.
Try it →Fastest Solar Payback States (2026, 6 kW @ $3/W)
| Rank | State | Electricity (¢/kWh) | Est. Payback | Net Metering | Highlight |
|---|---|---|---|---|---|
| #1 | New Jersey | 23.3 | ~0.6 yr | Full retail | SREC ~$85/MWh |
| #2 | Illinois | 19.1 | ~0.7 yr | Full retail | SREC ~$75/MWh |
| #3 | Maryland | 21.2 | ~0.7 yr | Full retail | SREC ~$65/MWh |
| #4 | District of Columbia | 24.6 | ~0.7 yr | Full retail | SREC ~$40/MWh |
| #5 | Massachusetts | 30.1 | ~0.6 yr | Full retail | SREC ~$30/MWh |
| #6 | Delaware | 17.4 | ~0.9 yr | Full retail | SREC ~$30/MWh |
| #7 | Pennsylvania | 20.8 | ~0.8 yr | Full retail | SREC ~$25/MWh |
| #8 | Ohio | 18.4 | ~1.1 yr | Full retail | SREC ~$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:
California
Solar incentives, net metering & payback for this state.
View state guide →Texas
Solar incentives, net metering & payback for this state.
View state guide →Florida
Solar incentives, net metering & payback for this state.
View state guide →New York
Solar incentives, net metering & payback for this state.
View state guide →New Jersey
Solar incentives, net metering & payback for this state.
View state guide →Massachusetts
Solar incentives, net metering & payback for this state.
View state guide →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.