Solar in Indiana costs about $3.06 per watt, so the typical 7.92 kW system runs about $24,235 before incentives, 5.5% above the US average. Since July 1, 2022, new systems earn a wholesale-derived credit for the power they export, so the power you use at home decides whether solar pays.
See what the current credit does to your Indiana math
Your utility’s export credit and your daytime use set your payback. Your ZIP code shows local prices and installers.
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Indiana’s meter has a before and an after: July 1, 2022
Senate Enrolled Act 309 closed retail net metering to new customers. Which side of the date your system sits on sets what your exports earn.
Interconnected before July 1, 2022
Grandfathered legacy customers keep their terms. Confirm with your utility in writing before you change the system, since changes can affect that status.
New systems since July 1, 2022
Priced from the utility’s prior-year average wholesale power cost under IC 8-1-40. It applies to every new home system at the investor-owned utilities, and it is worth a fraction of the 16.58¢ retail rate.
Four utilities, four credit ratesDuke Energy Indiana, AES Indiana, NIPSCO and Indiana Michigan Power serve about 73% of the state’s homes. Each files its own credit rate, and the cents per kWh change by utility and year. Get your utility’s current figure in writing before you trust any savings projection.
Exports valued at retail? Walk away.A proposal that values exports at retail is modeling a program that closed in 2022. That is a 2021 proposal wearing a 2026 date. Walk away from the installer, not just the quote.
Why self-use is the whole Indiana payback
A 7.92 kW array in Indianapolis-class sun makes about as much power a year as the average home uses. The best case assumes every kWh of it replaces power you would buy.
Exported power earns the wholesale-derived credit instead, so real paybacks stretch with every kWh that leaves the house. The statewide average is not a rate anyone pays: your utility’s filed residential rate is the number your real payback runs on.
Three design rules that followSize at or below your usage. Shift daytime load into production hours. And treat a battery as a serious option rather than an upsell: every stored kWh you use later offsets full retail instead of selling at the lower credit.
What an Indiana system costs at $3.06 per watt
Indiana homes use a hefty 901 kWh a month, so systems run large: the typical 7.92 kW system costs about $24,235 before incentives. At $3.06 per watt, Indiana ranks 40 of 51 on price. For the national picture, see solar panel costs across the country.
Every row is the gross cost at $3.06 per watt, host-owned, before incentives. Real quotes vary by roof, equipment and installer.
Test every bid against $3.06The price per watt is the second number to check in any Indiana bid, right after the export credit. On a 7.92 kW system, a quote 40¢ per watt above the benchmark is more than $3,000 of unexplained premium.
No state solar license: four checks Indiana buyers must run
Indiana requires no state-level solar contractor license. Local jurisdictions handle permits and licensed electricians still do the wiring, but there is no statewide credential to look up. Ask for these four things:
- The electrical license of the person who will actually wire the system.
- Proof of insurance.
- Local references from the last 12 months.
- The installer’s history with your utility’s interconnection queue.
In a state where the billing rules already demand precision, an installer who cannot answer those four questions quickly is answering them. Compare track records in our guide to top solar companies in Indiana.
Four Indiana households the new credit works against
The math thins fast when most of your power leaves the house. Think twice if one of these fits you:
- Export-heavy households. Away all day with no load to shift means most production sells at wholesale-derived rates.
- Anyone shown retail-valued exports. That quote models a program that closed to new systems in 2022.
- Tight budgets counting on credits. The federal residential credit is $0 for host-owned systems whose installation is completed after December 31, 2025. Leases and PPAs sit in legal gray territory in Indiana, so plan on the full sticker price.
- Co-op and municipal customers who have not asked. The 2022 law governs the investor-owned utilities. Co-ops and munis set their own terms, which can be better or worse. Ask first, model second.
Get Indiana bids modeled on self-use, not the old meter
Your utility’s current credit rate and your daytime use decide everything here. Enter your ZIP code and we start from those two facts.
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More Indiana solar guides
Frequently asked questions
How much do solar panels cost in Indiana in 2026?
About $3.06 per watt installed as of March 1, 2026, which puts Indiana at rank 40 of 51. The typical 7.92 kW system sized to average usage runs about $24,235 before incentives.
Does Indiana have net metering in 2026?
Not for new customers. Retail net metering closed to new interconnections on July 1, 2022 under SEA 309. New systems earn an excess distributed generation credit priced from the utility’s prior-year average wholesale cost under IC 8-1-40, which runs well below the retail rate.
What is the solar payback period in Indiana?
Best case models to about 13.5 years if all production offsets power at the 16.58¢ statewide average; your own utility’s filed residential rate is the figure your real payback runs on. Because exports earn a wholesale-derived credit instead, the real number depends on how much of your production you use directly, which makes self-consumption the deciding factor in Indiana.
Are legacy net metering customers in Indiana protected?
Systems interconnected before the July 2022 closure keep their retail net metering under grandfathering. If you hold legacy status, confirm with your utility in writing before modifying the system, since changes can affect it.
Is a battery worth it in Indiana?
More than in most states. Every stored kilowatt-hour you use later offsets full retail instead of selling at a wholesale-derived credit, so a battery directly attacks Indiana’s weakest number. It still adds cost, so compare paybacks with and without.
How we calculate these costs
Cost figures use Indiana’s entry in the EcoGen Solar Cost Index (v2 method): $3.06 per watt, 5.5% above the $2.90 national figure. Payback is modeled with no federal residential credit for host-owned systems, exports credited below retail per IC 8-1-40, rate growth at the state 5-year average of 3.26%, 0.5% yearly panel degradation and a 25-year horizon. Per-utility credit rates change every year and are shown only as structure here. Confirm your utility’s current figure before relying on any projection.
Sources (6)
- Indiana General Assembly, Indiana Code 8-1-40 (distributed generation statute, SEA 309 and the July 1, 2022 net metering closure): iga.in.gov
- U.S. EIA, Electric Power Monthly, Table 5.6.A (residential prices by state, March 2026 edition): eia.gov
- U.S. EIA, Form EIA-861 Annual Electric Power Industry Report, 2024 (customer counts for Duke Energy Indiana, AES Indiana, NIPSCO and Indiana Michigan Power): eia.gov
- U.S. Census Bureau, American Community Survey, 2024 (median home values): census.gov
- IRS, One, Big, Beautiful Bill Provisions (Public Law 119-21 and the end of the Section 25D credit): irs.gov
- DSIRE, Third-Party Solar PV Power Purchase Agreement Policies, May 2026: ncsolarcen-prod.s3.amazonaws.com
