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Solar PV Permit in Evanston, Wyoming

Solar systems in Evanston require BOTH a City of Evanston building permit AND a Wyoming State Plan Review and Electrical Permit — a dual local/state review confirmed directly in the City's own Building Permit Legal Requirements ('Solar Systems require a building permit and a Wyoming State Plan Review and Electrical Permit'). This matches W.S. § 35-9-108's state plan-review trigger for 'alternate energy generation installation feeding to the utility' and the WSFM chart's state electrical classification for Evanston.

Verified 2026-07-01 · Source

When you need this permit

  • City of Evanston building permit required for the physical installation (racking, roof penetration, structural)
  • Wyoming State Fire Marshal Plan Review required for the alternate energy generation installation feeding to the utility (per W.S. § 35-9-108)
  • Wyoming State electrical permit required for the PV electrical interconnection (State electrical program — see electrical-permit type)
  • Review the 'Electrical PV Plan Review Checklist' referenced by the City before applying
  • Structural plans should account for Evanston's design load values (wind, seismic Zone D1, snow, frost depth)

Required documents

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This checker covers one permit. A full project usually triggers several — our checklist will assemble all of them, free →

Fee schedule

City Building Permit FeeCity of Evanston Engineering & Building Rate Sheet; no separate flat solar fee line locally
$0.010 × project cost (minimum charge $30.00)
Wyoming State Electrical Permit (PV interconnection)Wyoming State Fire Marshal's Office Electrical Safety program — paid to and processed by the State, not the City
$50.00 standard wiring permit (see electrical-permit type for full State fee schedule)

Review timeline

Plan reviewTypical estimate — confirm current times with the Evanston building department
~1–10 business days

How long did your Solar PV Permit permit actually take in Evanston?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    City Structural/Racking Inspection

    Roof penetration, racking attachment, and structural connections — performed by the City

  2. 2

    State Electrical Inspection

    PV interconnection wiring inspected by the Wyoming State Fire Marshal's electrical program, not the City

See the full Evanston inspection guide — scheduling & re-inspection fees →

Tips

  • Do not assume the City permit covers the electrical interconnection — a separate State of Wyoming Plan Review AND Electrical Permit are both required for solar in Evanston.
  • Alternate energy generation feeding the utility is one of the explicit state plan-review triggers under W.S. § 35-9-108, independent of building size.

Frequently asked questions

Evanston requires a solar pv permit for: City of Evanston building permit required for the physical installation (racking, roof penetration, structural); Wyoming State Fire Marshal Plan Review required for the alternate energy generation installation feeding to the utility (per W.S. § 35-9-108); Wyoming State electrical permit required for the PV electrical interconnection (State electrical program — see electrical-permit type); Review the 'Electrical PV Plan Review Checklist' referenced by the City before applying; Structural plans should account for Evanston's design load values (wind, seismic Zone D1, snow, frost depth). If your project isn't listed, confirm with City of Evanston Engineering & Planning Department — Building Department at (307) 783-6470 before starting work.

In Evanston, the published City Building Permit Fee is: $0.010 × project cost (minimum charge $30.00). Additional published fees: Wyoming State Electrical Permit (PV interconnection) — $50.00 standard wiring permit (see electrical-permit type for full State fee schedule). These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a solar pv permit in Evanston typically runs 1–10 business days. This is an estimate, not a published figure — confirm current review times with City of Evanston Engineering & Planning Department — Building Department at (307) 783-6470.

You'll need: Electrical PV Plan Review Checklist; Solar Systems guidance. See the required-documents checklist on this page for details on each.

Evanston requires 2 inspection(s) for a solar pv permit, in order: City Structural/Racking Inspection, State Electrical Inspection. Schedule each through City of Evanston Engineering & Planning Department — Building Department ((307) 783-6470).

Apply through City of Evanston Engineering & Planning Department — Building Department at 33 Allegiance Circle, Evanston, WY 82930. Phone: (307) 783-6470, email: jhergert@evanstonwy.org. Office hours: Monday through Thursday 7:30 am–5 pm; Friday 7:30 am–1:30 pm (City Hall hours; contact Building Department directly for its own hours). Official information: https://engineering-planning-evanstonwy.hub.arcgis.com/pages/5d3f1221a8a94c8d9d12e0c6e6d8bea9.

Evanston, Wyoming has adopted: 2024 International Building Code (IBC) — current edition per City of Evanston Building Permit Legal Requirements; 2024 International Residential Code (IRC) — residential construction incorporates current IRC requirements per Evanston City Code § 7-52.1; 2021 Uniform Plumbing Code (UPC) provision cited for irrigation backflow prevention (UPC 608.17.5); confirm current adopted plumbing code edition with the Building Department; Evanston local design load values (wind, seismic, snow, frost depth) apply IN ADDITION TO the International codes — see localAmendments; IMPORTANT: Electrical work in Evanston is NOT governed by a City-adopted electrical code — electrical permitting and inspection is performed by the Wyoming State Fire Marshal's Office (Chief Electrical Inspector) under the state's default statewide electrical program (W.S. § 35-9-119), per the WSFM 'LOCAL AND STATE JURISDICTIONS' chart (Evanston = ELEC INSP/PR: S/S) and confirmed directly by the City's own Building Inspection Information sheet ('Electrical: Contact State of Wyoming Electrical Inspector'); IMPORTANT: Building PLAN REVIEW in Evanston has a state-law overlay — per W.S. § 35-9-108, the Wyoming State Fire Marshal must review and approve plans (in addition to city review) for: buildings/structures owned or leased by state/local government; buildings for general public access exceeding 5,000 sq ft total floor area; buildings over one story (incl. apartments/condos); childcare centers for more than 10 children; public bars/lounges/restaurants/night clubs/lodge halls/theatres/churches/public meeting places regardless of size; aboveground fuel dispensing facilities; alternate energy generation feeding the utility (incl. solar); Type I commercial kitchen exhaust hoods; spray finish applications; and buildings changing occupancy type — this matches the WSFM jurisdictions chart classification of Evanston building plan review as having a State component (STATE BLDG INSP/PR designation) alongside the City's own local building permit issuance and inspection program. Local amendments apply — see the Evanston overview page for the full list.

Yes. In addition to the City of Evanston building permit, solar systems require a Wyoming State Plan Review and a Wyoming State electrical permit, per the City's own Building Permit Legal Requirements document.

Sources & verification

Verified against official sources. Last reviewed 2026-07-01.

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 Evanston building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.