Net Metering by State

What your electric utility actually pays for exported solar power.

Indiana solar export compensation

What Indiana pays for exported rooftop solar power, with the source and the date each figure was checked.

Record verified 2026-09-16 · 17 of 17 fields sourced

What does your utility pay?

Fixed export rate

$0.028981/kWh

Duke Energy Indiana · Indiana

Effective Approved July 6, 2022; annual updates required

Initial IURC-approved EDG rate in Cause No. 45508. The cited order explains the statutory formula and annual update requirement; a newer approved tariff figure was not located in the accessible primary sources used here.

Source: in.gov

Full Duke Energy Indiana detail →

Indiana's post-SEA 309 framework replaces new-customer retail net metering with excess distributed generation (EDG) credits. The statutory EDG rate is each electricity supplier's average marginal electricity price multiplied by 1.25, with annual updates. Duke Energy Indiana, AES Indiana, NIPSCO, and Indiana Michigan Power each operate utility-specific EDG riders; legacy net-metering customers retain statutory grandfathering protections.

Program details

Compensation mechanismExcess distributed generation (EDG) is credited on the customer's monthly bill at the supplier's average marginal electricity price multiplied by 1.25; this replaced retail-rate net metering for new customers after the statutory transition.
in.gov
Export rateUtility-specific EDG rates, not one statewide rate; the verified utility-by-utility rates are listed in the utilities array below.
in.gov · aesindiana.com · iurc.portal.in.gov · iurc.portal.in.gov
Rate effectiveRates are utility-specific and updated annually: AES Indiana's cited tariff is effective July 27, 2026; I&M's 2026 compliance filing applies with the March 2026 billing cycle; NIPSCO's latest located filing applies April 2025 through March 2026; Duke's cited initial rate was approved July 6, 2022.
aesindiana.com · iurc.portal.in.gov · nipsco.com · in.gov
Credit rolloverYes. Excess bill credit is carried forward and applied against future charges while the customer continues receiving service at the premises.
in.gov
Credit expirationCredits continue while the customer receives electric service at the premises; when service ends, unused credits are flowed through the fuel-adjustment mechanism for other customers. NIPSCO's rider instead states unused remaining balance is forfeited and passed back through its FAC.
in.gov · nipsco.com
Annual true-upMonthly billing is the crediting period; any excess credit is carried into future monthly bills rather than settled on a statewide annual true-up date.
in.gov
Residential system capEligible distributed-generation facilities are limited to the lesser of 1 MW or the customer's average annual on-premises electricity consumption under the utility riders; Indiana's net-metering reporting summary describes the statewide eligibility standard as nameplate capacity less than or equal to 1 MW.
in.gov
Commercial system capThe same 1 MW-or-average-annual-consumption eligibility limit applies to commercial EDG customers under the utility riders; the statewide net-metering standard is nameplate capacity less than or equal to 1 MW.
in.gov
Aggregate program capNet-metering availability was capped at 1.5% of each electricity supplier's most recent summer peak load; this is a supplier-specific statutory threshold, not a single statewide kW cap.
in.gov
Program statusThe statutory net-metering offering for new customers ended no later than July 1, 2022; new qualifying customers are served under utility EDG riders, while grandfathered participants continue under the statutory transition rules.
in.gov
RegulatorIndiana Utility Regulatory Commission (IURC).
in.gov
DocketPrimary EDG approval causes are Duke Energy Indiana Cause No. 45508, NIPSCO Cause No. 45505, and Indiana Michigan Power Cause No. 45506. AES Indiana's current cited tariff is issued pursuant to Cause No. 46258.
in.gov · iurc.portal.in.gov · in.gov · aesindiana.com · aesindiana.com
Governing ruleIndiana Code chapter 8-1-40, enacted through SEA 309, governs EDG and requires the rate formula of average marginal electricity price multiplied by 1.25; utility riders implement the approved tariffs.
in.gov
GrandfatheringCustomers participating when the tariff terminates continue under net-metering terms until facility removal or replacement, or July 1, 2032, whichever is earlier; customers participating on December 31, 2017 are protected until facility removal or replacement, or July 1, 2047, whichever is earlier.
in.gov
Interconnection applicationCustomers must submit the utility's interconnection application and obtain an approved electrical connection/interconnection agreement before the eligible generator may interconnect and participate in EDG.
aesindiana.com
Interconnection timelineIndiana's cited sources do not establish one statewide interconnection-approval deadline; the timeline is governed by each utility's interconnection standards and approved tariff.
aesindiana.com
Pending changeUtilities must update EDG rates annually: the statute and IURC orders require an updated rate by March 1, while utility billing effective dates vary. No unverified future statewide rate or decision number is asserted here.
in.gov

Rates by utility

State rules set the framework. Individual utilities often pay something different, and where they do the utility tariff governs.

Duke Energy Indiana$0.028981/kWh
Approved July 6, 2022; annual updates required
Initial IURC-approved EDG rate in Cause No. 45508. The cited order explains the statutory formula and annual update requirement; a newer approved tariff figure was not located in the accessible primary sources used here.
in.gov
AES Indiana (Indianapolis Power & Light)5.4325 cents/kWh
July 27, 2026
Rider 16 EDG; tariff says the rate is average marginal energy price multiplied by 1.25 and is updated annually by compliance filing.
aesindiana.com
NIPSCO$0.038333/kWh
April 2025 through March 2026 (latest located primary filing)
Rider 589 filing based on 2024 average real-time LMP; the NIPSCO tariff page was accessible only through the cited filing/search extract and no newer rate figure was verified.
nipsco.com
Indiana Michigan Power$0.05466/kWh
March 2, 2026 billing cycle
2026 compliance filing based on 2025 average real-time LMP for the I&M Zone; annual update under Cause No. 45506.
iurc.portal.in.gov

Sources read for this record

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