Contractor Licensing Requirements for Solar Installers in Michigan

Michigan solar installations involve layered licensing obligations that affect every party in the project chain — from the master electrician pulling the permit to the roofing subcontractor mounting the racking. Understanding which licenses apply, which state agencies enforce them, and where the boundaries between license categories fall is essential for evaluating any solar project's compliance status.

Definition and scope

Contractor licensing in Michigan's solar sector is governed primarily by the Michigan Department of Licensing and Regulatory Affairs (LARA), which oversees trades licensing through the Bureau of Construction Codes and the Bureau of Professional Licensing. Solar installation is not a standalone license category under Michigan law; instead, it is treated as a combination of regulated trades — principally electrical work and, where structural penetrations are involved, roofing.

The core statutory framework is the Michigan Occupational Code, Act 299 of 1980, which defines the licensing tiers for electrical contractors and journeymen. The Michigan Electrical Administrative Act, Act 217 of 1956 provides the enforcement authority for electrical installation standards. Roofing contractors are separately addressed under the Michigan Residential Code and commercial construction codes administered through Bureau of Construction Codes.

Scope and coverage limitations: This page addresses licensing requirements applicable within the state of Michigan. Federal contractor registration (such as SAM.gov registration for federal projects) is not covered here. Municipal licensing add-ons — which a small subset of Michigan cities impose on top of state requirements — fall outside this page's scope and require direct verification with individual municipality offices. Licensing reciprocity with other states is also not addressed.

How it works

Michigan structures solar-related licensing across 3 primary trade categories:

1. Electrical Contractor License — Required for any party whose employees perform electrical wiring, inverter connections, or utility tie-in work. This license is issued at the company level by LARA. The company must employ at least one licensed Master Electrician of record.

2. Master Electrician License — An individual credential requiring passage of a state examination and documented work experience. The Master Electrician is legally responsible for the electrical scope of a solar installation, including DC wiring from panels to inverters and AC interconnection to the service panel.

3. Journeyman Electrician License — Required for individuals performing hands-on electrical work under a Master Electrician's supervision. Solar DC and AC wiring work qualifies as electrical work under Michigan law and requires a licensed journeyman or apprentice working within a licensed contractor structure.

For projects involving roof penetrations — the standard case in most residential and commercial rooftop installations — a Roofing Contractor registration may also apply, depending on project scope and municipality. Michigan's Builder's License (Residential Builder or Maintenance and Alteration Contractor) can overlap here when the solar project is bundled with structural work on an owner-occupied home.

The permitting process sits alongside licensing. A licensed electrical contractor must pull an electrical permit through the local building department before installation begins. Inspectors — working under authority delegated from the Bureau of Construction Codes — verify that the installation meets the National Electrical Code (NEC), which Michigan has adopted with state amendments. NFPA 70 is currently at the 2023 edition (effective 2023-01-01, updated from the 2020 edition); installers and inspectors should confirm which edition Michigan has currently adopted, as state amendment cycles may lag the NFPA release. The /regulatory-context-for-michigan-solar-energy-systems page covers the full regulatory stack in detail.

Common scenarios

Scenario 1: Fully licensed local solar company
A Michigan-based solar installer holds an Electrical Contractor License and employs Master and Journeyman Electricians. The company self-performs all electrical work and subcontracts roofing penetrations to a licensed roofer. This is the most straightforward compliance path and the arrangement most local building departments expect.

Scenario 2: Out-of-state installer entering Michigan
A company licensed in Ohio or Indiana cannot perform electrical work in Michigan under its home-state license. Michigan requires a Michigan Electrical Contractor License. The company must either obtain a Michigan license, hire a Michigan-licensed electrical contractor as a subcontractor, or use a Michigan-licensed Master Electrician as the project's electrical contractor of record.

Scenario 3: Homeowner self-installation
Michigan law permits homeowners to perform electrical work on their own primary residence without an electrical contractor license, but the work still requires a permit and must pass inspection against NEC standards. For a how solar energy systems work conceptually, the inverter wiring and utility interconnection are among the most technically demanding steps — inspection failure rates for DIY electrical work are notably higher than for licensed contractor work, according to general Bureau of Construction Codes inspection data.

Scenario 4: Commercial ground-mount project
Projects above certain wattage thresholds or on commercial properties may require an Engineering stamp in addition to contractor licensing. A Michigan-licensed Professional Engineer (PE) may need to sign off on structural and electrical design documents before the permit is issued.

Decision boundaries

The critical distinction in Michigan is between license type and license holder:

A solar company that holds only a sales or general business license and subcontracts all trade work is not itself a licensed contractor — it functions as a general contractor or developer. The licensed subcontractors bear the legal responsibility for the permitted work. Homeowners reviewing proposals should verify that the electrical subcontractor's Michigan Electrical Contractor License number appears on the permit application.

For a broader picture of how licensing integrates with the full solar project lifecycle, the Michigan Solar Authority home page provides an orientation to all topics covered across this resource.

LARA maintains a public license verification search at michigan.gov/lara where any Electrical Contractor License or individual electrician credential can be confirmed by name or license number before a contract is signed. This verification step is a standard due-diligence measure identified in Michigan solar installer selection criteria.

References

• Michigan Department of Licensing and Regulatory Affairs (LARA)
• Michigan Occupational Code, Act 299 of 1980 — Michigan Legislature
• Michigan Electrical Administrative Act, Act 217 of 1956 — Michigan Legislature
• Michigan Bureau of Construction Codes — LARA
• National Fire Protection Association — NFPA 70 (National Electrical Code), 2023 Edition
• Michigan Bureau of Professional Licensing — LARA