Federal solar credit ended Dec 31, 2025
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Net metering · Indiana

Indiana Net Metering and Solar Export Credits

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Updated Data verified Nov 5, 2026

Net billing (exports credited below retail). Indiana investor-owned utilities credit new solar customers under Excess Distributed Generation (EDG) riders: energy sent to the grid at any moment is measured separately and credited at 1.25 times the utility's prior-year average marginal energy price, far below retail. Unused credits carry forward indefinitely.

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What AES Indiana pays for exported solar

For a new rooftop system, AES Indiana credits exported energy at about 5.43¢ per kWh[1], against an average Indiana residential price of 17.04¢[2]. Every kWh you send to the grid earns this rate; power you draw is billed at retail.

Other Indiana utilities, co-ops and municipal utilities set their own rates; check your utility's current tariff.

State rules that apply

  • What the rule says: “Excess Distributed Generation (DG) rate is the average marginal price of energy paid by the Company during the most recent calendar year, multiplied by one and twenty-five hundredths (1.25)”[1]

What it means for sizing and batteries

When exports earn much less than retail, each kWh you use at home as it is produced is worth more than one you export. Size to your daytime and evening use, shift loads (laundry, dishwasher, EV charging) to sunny hours or the plan's off-peak window, and price a battery against the gap between the retail and export rates.

The calculator uses the statewide rule until we add utility rates. See what solar costs in Indiana.

FAQ

Frequently asked questions

Does Indiana have net metering?

Indiana investor-owned utilities credit new solar customers under Excess Distributed Generation (EDG) riders: energy sent to the grid at any moment is measured separately and credited at 1.25 times the utility's prior-year average marginal energy price, far below retail. Unused credits carry forward indefinitely.

sources

[ 2 ]

Every number on this page links to one of these sources. Dates show when we last checked each one.

  1. AES Indiana Standard Contract Rider No. 16 Excess Distributed Generation (EDG), Effective July 27, 2026aesindiana.com · checked Nov 5, 2026
  2. EIA Electric Power Monthly, Table 5.6.B: Average price of electricity by state, year-to-date (August 2026, preliminary)eia.gov · checked Nov 5, 2026

Tariffs last re-checked November 5, 2026.

Change log

  1. Monthly output per kW in Indianapolis updated to [76.3, 82.7, 110.0, 126.9, 132.1, 145.1, 144.1, 143.8, 124.2, 102.8, 77.9, 65.6] kWh/kW/month (NREL/NLR PVWatts v8 (1 kW-DC, fixed roof mount, 20° tilt, south-facing, 14% losses, TMY weather)).
  2. Average solar radiation on the panels in Indianapolis updated to 4.66 kWh/m2/day (NREL/NLR PVWatts v8 (1 kW-DC, fixed roof mount, 20° tilt, south-facing, 14% losses, TMY weather)).
  3. Solar output per kW in Indiana (PVWatts, Indianapolis) updated to 1331.6 kWh/kW/yr (NREL/NLR PVWatts v8 (1 kW-DC, fixed roof mount, 20° tilt, south-facing, 14% losses, TMY weather)).
  4. What the rule says updated to “Excess Distributed Generation (DG) rate is the average marginal price of energy paid by the Company during the most recent calendar year, multiplied by one and twenty-five hundredths (1.25)” (AES Indiana Standard Contract Rider No. 16 Excess Distributed Generation (EDG), Effective July 27, 2026).