Residential/Commercial Solar Photovoltaic (PV) Permit (State-Issued) — Toole County (Unincorporated), Montana · Requirements sheet
Verified 2026-07-20 · Source: https://bsd.dli.mt.gov/building-codes-permits/alternative-energy-information/
PermitBase is an independent reference and is not affiliated with any government agency. Requirements change and vary by project — confirm current details with the building department before you submit.
Residential/Commercial Solar Photovoltaic (PV) Permit (State-Issued) in Toole County (Unincorporated), Montana
Because Toole County is not DLI-certified for electrical (its certification is Building, commercial only), solar PV interconnection/electrical work anywhere in unincorporated Toole County is issued directly by the Montana DLI Building Codes Bureau in Helena, using the Bureau's own Alternative Energy permitting track: a licensed electrical contractor applies for a standard state Electrical Permit and selects solar, a non-electrician installer submits a state Alternate Energy Permit with solar information, or a qualifying homeowner uses the state homeowner electrical permit option with solar information provided. Racking/mounting structural work for a COMMERCIAL project routes to the county's own commercial-only Building certification (same mechanism as the commercial-building-permit-county entry); residential racking/mounting routes to the state, same as the residential-building-permit-state entry.
Verified 2026-07-20 · Source
When you need this permit
- Electrical interconnection/wiring for a solar PV system anywhere in unincorporated Toole County (residential or commercial) is filed with the Montana DLI Building Codes Bureau, not the county, since Toole County holds no electrical certification at all
- A licensed electrical contractor applies for a standard state Electrical Permit and selects 'solar' on the application; a non-electrician installer submits a state Alternate Energy Permit with solar information instead, per Montana DLI Building Codes Bureau Alternative Energy Information guidance
- A homeowner performing PV installation on their own owner-occupied residence may use the state homeowner electrical permit option, providing solar-specific system information on the application Owner-builder
- Fee is based on the total value of the electrical work, including the solar equipment, per the Bureau's own Alternative Energy Information page
- Commercial racking/mounting structural work routes to Toole County's own commercial-only Building certification (Kyle Harlan); residential racking/mounting routes to the state DLI Building Codes Bureau, same as documented in this file's residential-building-permit-state entry
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Fee schedule
Review timeline
Inspection process
Tips
- Solar PV electrical permits for any unincorporated Toole County address are issued by the STATE Building Codes Bureau in Helena, not the county — mail applications and payment to PO Box 200517, Helena, MT 59620-0517, or apply online at ebiz.mt.gov / aca-prod.accela.com/bcb.
- This is the same Alternative Energy Source add-on fee mechanism ($45-$65) already confirmed for Townsend, MT in this database — it is not Toole-County-specific, but it is the correct, currently-published statewide fee that applies to unincorporated Toole County since the county holds no electrical certification.
- Do not confuse this with Toole County's own commercial-only Building certification (Kyle Harlan, 424-8310) — that program covers structural/racking review for COMMERCIAL projects only, and does not extend to the electrical interconnection scope of a solar installation.
Frequently asked questions
Sources & verification
Verified against official sources. Last reviewed 2026-07-20.
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Toole County (Unincorporated) building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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