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Solar PV Permit in Fort Collins, Colorado

Required for rooftop or ground-mounted solar PV installation, reinstallation, and energy storage systems (ESS) in Fort Collins. Because Fort Collins Utilities is the city's own municipal electric utility, solar/battery projects require a SEPARATE Utilities Interconnect and Rebate Application in addition to the Building Services permit. A separate Poudre Fire Authority permit is also required for new installations and larger ESS.

Verified 2026-06-30 · Source

When you need this permit

  • New installation: site plan, roof plan (if roof-mounted), panel layout, structural engineering for wind/snow loads and attachment (stamped by Colorado-licensed engineer), engineered electrical one-line diagram (stamped)
  • A separate permit from Poudre Fire Authority is required for new solar PV installations, including fire access/clearances per the International Fire Code
  • Reinstallation (same location/identical panels, no system changes): before-photo of existing system required; roof plan with panel layout only if the system changes
  • Energy Storage System (ESS): location/spacing must comply with 2021 IRC R328 and the city's interpretation; requires a Master Electrician or Homeowner Affidavit; separate PFA permit required above 20 kWh (individual units), 40 kWh aggregate (utility closets/basements/storage), or 80 kWh aggregate (garages/exterior/outdoor) Owner-builder
  • Utilities Interconnect and Rebate Application (separate from the building permit) must be submitted to Fort Collins Utilities — see Residential Solar and Battery Storage program

Required documents

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Fee schedule

Solar PV New Installation — ResidentialCity of Fort Collins Building Permits page — Solar PV (New Installation), Residential
$85.00 total application fee ($29.75 Plan Check due at application + $55.25 Building Permit Fee due at issuance)
Solar PV New Installation — CommercialCity of Fort Collins Building Permits page — Solar PV (New Installation), Commercial
$155.00 total application fee ($54.25 Plan Check due at application + $100.75 Building Permit Fee due at issuance)
Solar PV Reinstallation (flat fee)City of Fort Collins Building Permits page — Solar PV Reinstallation
$65.00
Solar PV — Energy Storage System (ESS) (flat fee)City of Fort Collins Building Permits page — Solar PV, Energy Storage System
$65.00
Sales TaxCity of Fort Collins Sales Tax page
Calculated based on total project valuation (materials and labor)

Review timeline

Plan reviewTypical estimate — confirm current times with the Fort Collins building department
~0–0 business days

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

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

Inspection process

  1. 1

    Rough Electric

    Conduit runs, wire sizing, disconnect placement before cover

  2. 2

    Energize Electric

    Fort Collins Utilities meter/energize step for the interconnected system

  3. 3

    Final Building / Final Electric

    Panel mounting, racking attachment, roof penetration sealing, and all electrical connections/interconnection verified

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

Tips

  • Because Fort Collins Utilities is a municipal (city-owned) electric utility — not an investor-owned utility like Xcel Energy — solar interconnection and net-metering/rebate approval is a SEPARATE application to Solar-Rebates@fortcollins.gov, distinct from the Building Services permit.
  • Solar PV reinstallation (identical panels, same location) is a simple flat $65 fee — much cheaper than a new installation.
  • A separate Poudre Fire Authority permit is required for new PV installations and for ESS above specific kWh thresholds — budget for this as a distinct review track.
  • The 2024 IECC's Fort Collins Amendments require new construction to identify a 'solar-ready zone' on construction documents, reflecting the city's broader solar-forward energy policy.

Frequently asked questions

Yes. Because Fort Collins Utilities is the city's own municipal electric utility, solar PV and battery storage projects require a Utilities Interconnect and Rebate Application submitted separately to Solar-Rebates@fortcollins.gov, in addition to the Building Services solar PV permit.

A new residential rooftop solar PV installation is an $85 total permit fee ($29.75 plan check + $55.25 building permit fee); commercial is $155 total. Reinstallation of existing panels or an energy storage system (ESS) addition is a flat $65 fee. All are separate from Fort Collins Utilities' own Interconnect and Rebate Application.

Plan review for a solar pv permit in Fort Collins typically runs 0–0 business days. This is an estimate, not a published figure — confirm current review times with City of Fort Collins — Building Services at 970-416-2740.

You'll need: Solar PV Permit Application (PDF, 401KB); Utilities Interconnect and Rebate Application. Depending on your project, Fort Collins may also ask for: Residential Solar PV Guide (PDF, 546KB); Homeowner Affidavit (PDF, 469KB); Owner Authorization Form (PDF, 374KB). See the required-documents checklist on this page for details on each.

Fort Collins requires 3 inspection(s) for a solar pv permit, in order: Rough Electric, Energize Electric, Final Building / Final Electric. Schedule each through City of Fort Collins — Building Services (970-416-2740).

Apply through City of Fort Collins — Building Services at 281 N. College Ave., Fort Collins, CO 80524. Phone: 970-416-2740, email: BuildingServices@fortcollins.gov. Office hours: Monday–Friday, 8 a.m. to 5 p.m.. Official information: https://www.fortcollins.gov/Business/Building-and-Development/Building-Services.

Fort Collins, Colorado has adopted: 2024 International Building Code (IBC) with 2024 Fort Collins IBC Amendments — current as of April 1, 2026 (permits submitted on/after April 1, 2026 use these; 2021 IBC available for reference until Oct. 1, 2026); 2024 International Residential Code (IRC) with 2024 Fort Collins IRC Amendments — current as of April 1, 2026; 2024 International Energy Code (IECC) with 2024 Fort Collins IECC Amendments — current as of April 1, 2026; Fort Collins amendments add all-electric building provisions, solar-ready zone requirements, heat-pump and demand-response requirements (see localAmendments); 2024 International Mechanical Code (IMC) with 2024 Fort Collins IMC Amendments; 2024 International Fuel and Gas Code (IFGC) with 2024 Fort Collins IFGC Amendments; 2024 International Plumbing Code (IPC) with 2024 Fort Collins IPC Amendments (Fort Collins uses the IPC, not the UPC); 2023 National Electrical Code (NEC), effective Aug. 1, 2023 — adopted directly, matching the State of Colorado's adopted electrical code; 2024 International Existing Building Code (IEBC) with 2024 Fort Collins IEBC Amendments; 2024 International Property Maintenance Code (IPMC) with 2024 Fort Collins IPMC Amendments; 2024 International Swimming Pool and Spa Code (ISPSC) with 2024 Fort Collins ISPSC Amendments; 2025 Colorado Wildfire Resiliency Code (adopted statewide, current as of April 1, 2026); 2017 ICC A117.1 — Accessibility, plus Colorado Accessibility State Law (CRS 9-5); Poudre Fire Authority Fire Code — see PFA's Fire Code webpage for current adopted fire code (separate department, not administered by Building Services). Local amendments apply — see the Fort Collins overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-06-30.

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

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Solar PV Permit in other cities

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