Solar panels in Indiana
Roofs across Indiana get about 1,468 hours of usable sunlight a year, and electricity costs 15.3¢/kWh. That combination puts a typical system's payback at 10.6 years. Here's the detail, from real rooftop data across 14 Indiana cities.
Check your own roof in Indiana → These are regional figures; your roof's size, pitch and shading move them a lot.
How Indiana compares
Indiana gets more sunlight than 45% of the cities we measure, and its electricity costs more than 48% of states and provinces. Both matter, but not equally: the electricity rate usually matters more, because solar saves money by replacing power you would otherwise buy. A sunny state with cheap power often pays back slower than a cloudy state with expensive power. Why that happens →
Solar by city in Indiana
| City | Sun hrs/yr | Panels | Net cost | Payback |
|---|---|---|---|---|
| Muncie | 1,550 | 21 | $16,758 | 10.1 yrs |
| Fishers | 1,518 | 21 | $16,758 | 10.1 yrs |
| Carmel | 1,517 | 21 | $16,758 | 10.1 yrs |
| South Bend | 1,500 | 22 | $17,556 | 10.5 yrs |
| Richmond | 1,485 | 22 | $17,556 | 10.5 yrs |
| Evansville | 1,474 | 22 | $17,556 | 10.6 yrs |
| Fort Wayne | 1,468 | 22 | $17,556 | 10.6 yrs |
| Terre Haute | 1,459 | 22 | $17,556 | 10.6 yrs |
| Lafayette | 1,458 | 22 | $17,556 | 10.6 yrs |
| Indianapolis | 1,451 | 22 | $17,556 | 10.6 yrs |
| Hammond | 1,451 | 22 | $17,556 | 10.6 yrs |
| Bloomington | 1,422 | 23 | $18,354 | 11 yrs |
| Kokomo | 1,411 | 23 | $18,354 | 11 yrs |
| Gary | 1,375 | 24 | $19,152 | 11.5 yrs |
What a system costs in Indiana
| System | Size | kWh/yr | Net cost | Saves/yr | Payback |
|---|---|---|---|---|---|
| 8 panels | 3.2 kW | 3,993 | $6,384 | $611 | 10.4 yrs |
| 12 panels | 4.8 kW | 5,989 | $9,576 | $916 | 10.4 yrs |
| 16 panels | 6.4 kW | 7,986 | $12,768 | $1,222 | 10.4 yrs |
| 20 panels | 8 kW | 9,982 | $15,960 | $1,527 | 10.4 yrs |
| 26 panels | 10.4 kW | 12,977 | $20,748 | $1,736 | 12 yrs |
Payback stops improving as systems grow, then gets worse. You can only save on electricity you were going to buy, so once a system covers your usage the extra panels mostly export at a lower rate.
Indiana solar incentives
Every US household can claim the 30% federal residential clean energy credit, which is what the "after credit" figures above assume. On a $25,080 system that is $7,524 back. How the credit works →
State, utility and municipal incentives stack on top and change often — Indiana may offer rebates, property or sales tax exemptions, or performance payments. We deliberately don't list specific state programmes here because they change several times a year and stale numbers are worse than none. The DSIRE database is the standard reference and is kept current.
Indiana solar questions
Is solar worth it in Indiana?
At 15.3¢/kWh and 1,468 usable sun hours, a typical Indiana system pays back in about 10.6 years and returns roughly $23,927 across a 25-year panel life. That is slower than average, so compare at least three quotes before committing. Individual cities in Indiana vary widely around this average.
How many solar panels do I need in Indiana?
About 22 panels for a home using 10,800 kWh a year. Each 400W panel produces roughly 499 kWh annually at Indiana sunlight levels. Your own figure depends on actual usage — pull a year of bills rather than assuming average consumption, since heating and EV charging change it a lot.
How much do solar panels cost in Indiana?
A 8.8 kW system runs about $25,080 before incentives and $17,556 after the 30% federal credit, or roughly $2.85 per watt installed. Quotes vary widely by installer, roof complexity and whether your electrical panel needs upgrading — get three before deciding.
Worth reading before you buy
Regional estimates generated 2026-08-22 from Google Solar API rooftop samples across 14 Indiana cities, and average Indiana electricity rates. Not a quote and not financial or tax advice.