Kentucky vs Indiana Solar Incentives: Which State Gets the Better Deal?
Side-by-side comparison of Kentucky and Indiana solar incentive programs in 2026: state tax credits, net metering rules, exemptions, payback period, and projected 25-year savings.
| Metric | KY · Kentucky | IN · Indiana |
|---|---|---|
| Avg Monthly Bill | $145 | $140 |
| Peak Sun Hours / Day | 4.6 ◆ | 4.5 |
| Avg $/Watt Installed | $2.95 | $2.9 ◆ |
| State Tax Credit | None | None |
| Net Metering | retail | None |
| SREC Market | No | No |
| Property Tax Exempt | No | No |
| Sales Tax Exempt | No | No |
| Payback, pre-credit model (yrs) | 10.4 ◆ | 10.6 |
| 25-yr savings, pre-credit model | $25,400 | $26,800 ◆ |
Payback and 25-year savings were modeled while the federal residential credit applied. They are not a 2026 quote. The calculator uses $0 federal credit and state incentives only.
State Tax Credit Comparison
Kentucky offers no state income tax credit. Indiana offers no state income tax credit.
Net Metering Policies
Kentucky: retail rate net metering active. Indiana: no statewide net metering mandate.
Net metering is often the most economically significant solar policy because it determines how excess production is valued. Retail-rate states (where you receive full retail price for exported energy) have substantially better solar economics than avoided-cost or no-net-metering states.
Average 25-Year Savings
Kentucky: $25,400 over 25 years (avg payback 10.4 yrs). Indiana: $26,800 over 25 years (avg payback 10.6 yrs).
Verdict: Which State Wins on Solar?
Indiana delivers stronger lifetime solar economics than Kentucky due to more favorable net metering rules.
Note: state averages mask significant within-state variation. Your specific utility, roof orientation, and household electricity profile drive your actual numbers — use the calculator to model your home directly.