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Indiana Statewide Rule

Indiana Solar Access and Permitting Framework

Few RestrictionsApplies statewide across Indiana (2026)

Key Facts

Solar protection
IC 36-7-2-8
Interconnection
IC 8-1-40
Permitting
Local building code
Utility regulator
IURC
Electrical standard
NEC adopted
Last verified: September 5, 2026Source: State of Indiana

Summary

Indiana Code 8-1-40 governs distributed generation interconnection statewide. While solar permitting remains primarily local, IC 36-7-2-8 limits municipal authority to unreasonably restrict solar energy systems on residential property.

Sec. 8. (a) As used in this section, "solar energy system" means either of the following: (1) any solar collector or other solar energy device whose primary purpose is to provide for the collection, storage, and distribution of solar energy for space heating or cooling, or for water heating; or (2) any structural design feature of a building, whose primary purpose is to provide for the collection, storage, and distribution of energy for space heating or cooling, or for water heating. (b) A unit may not adopt any ordinance which has the effect of prohibiting or of unreasonably restricting the use of solar energy systems other than for the preservation or protection of the public health and safety. (c) This section does not apply to ordinances which impose reasonable restrictions on solar energy systems. However, it is the policy of this state to promote and encourage the use of solar energy systems and to remove obstacles to their use.

Source: State of IndianaView official code

Full Breakdown

Indiana Code 36-7-2-8 prohibits zoning ordinances from unreasonably restricting solar energy systems, providing some statewide protection for residential solar installations. IC 8-1-40 establishes utility interconnection standards for distributed generation, including net metering rules now transitioning to excess distributed generation crediting. Building permits remain required under local building codes adopted from 675 IAC, with electrical work meeting National Electrical Code standards. Utility approval through interconnection agreements is mandatory before energizing grid-tied systems regardless of local rules.

Violations & Penalties

Unauthorized utility interconnection may result in disconnection and civil penalties. Building code violations result in stop-work orders and required corrections. Net metering violations addressed by IURC.

Frequently Asked Questions

Can my city ban rooftop solar in Indiana?
No. IC 36-7-2-8 prohibits unreasonable zoning restrictions on solar energy systems, though cities may regulate placement, screening, and aesthetics through reasonable standards.
Does Indiana still have net metering?
Indiana transitioned from net metering to excess distributed generation credits under SEA 309 (2017). New systems receive credits based on a formula tied to wholesale rates rather than full retail.

Sources

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