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Solar PV Permit in Casper, Wyoming

Casper issues no separate solar-PV permit type; rooftop or ground-mounted PV is permitted as a combined building permit (structural/racking) and electrical permit (interconnection, wiring) under the City's general valuation-based fee schedule (City of Casper Fee Schedule, eff. Feb 2, 2026), the same schedule that prices every other building/electrical trade permit in Casper.

Verified 2026-07-16 · Source

When you need this permit

  • Building permit required for racking/structural attachment to roof or ground mount
  • Electrical permit required for PV wiring, disconnects, and interconnection (issued by Casper's own Building Inspection Division — see electrical-permit)
  • Structural adequacy of the roof (snow/wind load per 2024 IRC/IBC) must be demonstrated
  • Fee based on the value of the solar installation per the combined valuation-based fee schedule
  • Contact the Building Inspection Division at (307) 235-8254 before submitting plans, as Casper does not publish a dedicated solar permit guide

Required documents

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Fee schedule

Initial Building Permit FeeCity of Casper Permit Fee Schedule (eff. February 2, 2026)
$35
Combined Building/Electrical Permit Fee — valuation-basedCity of Casper Permit Fee Schedule (eff. February 2, 2026); Casper publishes no dedicated solar-PV fee line — solar work is charged under this same general valuation-based Combined Building, Electrical, Plumbing and Mechanical Permit Fee Schedule that governs every other building/electrical trade permit in the city
Graduated table from $70 (valuation $1–$1,000) up to $841 (valuation $99,001–$100,000); over $100,000 = $806 + $5.60 per additional $1,000 or fraction thereof

Review timeline

Plan reviewTypical estimate — confirm current times with the Casper building department
~10–20 business days

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

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

Inspection process

  1. 1

    Rough Electrical

    Conduit runs, wire sizing, and disconnect placement before concealment

  2. 2

    Final Electrical

    All connections, inverter, and interconnection point verified

  3. 3

    Final (Building/Structural)

    Racking attachment and roof penetration sealing verified

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

Tips

  • Casper issues no separate solar-PV permit type; rooftop PV is permitted as a combined building + electrical permit under the general valuation-based fee schedule (City of Casper Fee Schedule, eff. Feb 2, 2026) — confirm the exact submittal path directly with the Building Inspection Division at (307) 235-8254 before applying.
  • Structural calculations should account for Casper's snow and wind load design criteria under the 2024 IRC/IBC.
  • The electrical portion is inspected by Casper's own Building Inspection Division (not the WY State Fire Marshal), consistent with Casper's local electrical authority.

Frequently asked questions

Casper requires a solar pv permit for: Building permit required for racking/structural attachment to roof or ground mount; Electrical permit required for PV wiring, disconnects, and interconnection (issued by Casper's own Building Inspection Division — see electrical-permit); Structural adequacy of the roof (snow/wind load per 2024 IRC/IBC) must be demonstrated; Fee based on the value of the solar installation per the combined valuation-based fee schedule; Contact the Building Inspection Division at (307) 235-8254 before submitting plans, as Casper does not publish a dedicated solar permit guide. If your project isn't listed, confirm with City of Casper Community Development Department — Building Inspection Division at (307) 235-8254 before starting work.

In Casper, the published Initial Building Permit Fee is: $35. Additional published fees: Combined Building/Electrical Permit Fee — valuation-based — Graduated table from $70 (valuation $1–$1,000) up to $841 (valuation $99,001–$100,000); over $100,000 = $806 + $5.60 per additional $1,000 or fraction thereof. 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 Casper typically runs 10–20 business days. This is an estimate, not a published figure — confirm current review times with City of Casper Community Development Department — Building Inspection Division at (307) 235-8254.

You'll need: Building Permit Application; Electrical Permit Application. See the required-documents checklist on this page for details on each.

Casper requires 3 inspection(s) for a solar pv permit, in order: Rough Electrical, Final Electrical, Final (Building/Structural). Schedule each through City of Casper Community Development Department — Building Inspection Division ((307) 235-8254).

Apply through City of Casper Community Development Department — Building Inspection Division at 200 N David St, Casper, WY 82601. Phone: (307) 235-8254, email: building@casperwy.gov. Office hours: Mon–Fri 8:00 AM–5:00 PM (in-person/phone code consultation available 8:00–9:00 AM and 4:00–5:00 PM). Official information: https://www.casperwy.gov/services/building_and_inspections/index.php.

Casper, Wyoming has adopted: 2024 International Building Code (IBC); 2024 International Residential Code (IRC); 2024 International Fire Code (IFC); 2024 International Existing Building Code (IEBC); 2024 International Energy Conservation Code (IECC) — applies to the building thermal envelope ONLY per City of Casper adoption note; 2024 International Plumbing Code (IPC); 2024 International Fuel Gas Code (IFGC); 2024 International Mechanical Code (IMC); 2023 NFPA 70 National Electrical Code (NEC); ICC A117.1-2009 Accessible and Usable Buildings and Facilities. Local amendments apply — see the Casper overview page for the full list.

Casper does not publish a standalone solar PV permit type or fee schedule. Solar installations are processed through the standard building permit (for racking/structural work) and electrical permit (for wiring/interconnection) processes, both issued by the City's Building Inspection Division and priced off the combined valuation-based fee table. Confirm the exact submittal requirements with Community Development at (307) 235-8254 before applying.

Sources & verification

Verified against official sources. Last reviewed 2026-07-16.

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

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