Indiana Solar Guide 2026
Everything Indiana homeowners need to know: costs, incentives, net metering policy, and what makes this state unique for solar.
Quick answer
Indiana solar economics depend mainly on 4.5 average peak sun hours, an estimated $2.85/W installed cost, 12.0¢/kWh electricity, and the state's current net-metering rules.
Reviewed 2026-07-26
- Best for
- Indiana homeowners comparing solar costs, incentives, and payback assumptions.
- Inputs needed
- annual kWh usage, utility rate, installed $/W, net-metering policy
- Formula used
- Typical production = system kW × peak sun hours × 365.
- Source checked
- state incentive data, utility tariff checks, Wattcrunch price benchmarks
Key fact about Indiana solar
Indiana ended full retail net metering in 2022, significantly reducing solar economics for new installations. Low electricity rates (~$0.12/kWh) further extend payback. Batteries and self-consumption are essential strategies.
Peak sun hours
4.5
hrs/day avg
Avg electricity rate
12.0¢
per kWh
Median install cost
$2.85/W
before incentives
Typical payback
13 yrs
8 kW system, avg usage
Typical 8 kW system in Indiana
Annual production
13,140 kWh
Year-1 savings
$1,577
System cost (est.)
$22,800
No federal tax credit — Section 25D expired December 31, 2025.
Indiana Net Metering Policy
Net metering (at full retail through 2022 grandfather; new: avoided cost)
Indiana's full retail net metering ended for new customers in 2022 under HEA 1414. New solar customers receive export credits at avoided cost (~40–60% of retail). Systems installed before 2022 are grandfathered at retail through 2032.
Indiana Solar Incentives
Available in addition to any utility rebates. Federal 25D credit is $0 for homeowner-owned systems from 2026.
- ✓Property tax deduction on added home value (100% deduction)
- ✓No state income tax credit
Top Utilities in Indiana
Interconnection timeline: 4–8 weeks
State-specific decision guide
What to verify before signing a Indiana solar quote
In Indiana, the financial result depends on more than sunshine or the headline installation price. Confirm the export rule, program eligibility date, and interconnection timeline for your exact utility before treating a payback estimate as a promise.
Export value
This page models net metering (at full retail through 2022 grandfather; new: avoided cost). Ask which tariff and export credit apply to your account, not only which program name appears in the proposal.
Incentive eligibility
Check equipment, income, installer, application, and placed-in-service rules before subtracting an incentive from the quote. Programs can close or change terms.
Interconnection
Budget for the published 4–8 weeks and confirm who pays for a required meter, service upgrade, or engineering review.
Source trail: production assumptions use NREL PVWatts; incentive discovery should be checked against DSIRE; electricity-market context is available from the EIA. Confirm final tax treatment with the IRS and your utility.
Calculate your Indiana solar economics
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