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)
- 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
- Req
Solar PV Permit Application (PDF, 401KB)
Application for new solar PV installation or ESS
- Opt
Residential Solar PV Guide (PDF, 546KB)
City guidance on submittal requirements for residential solar PV
- Opt
Homeowner Affidavit (PDF, 469KB)
Required if homeowner is doing the work, including for ESS installs without a Master Electrician
- Opt
Owner Authorization Form (PDF, 374KB)
Required for commercial/multifamily solar permits
- Req
Utilities Interconnect and Rebate Application
Separate submittal to Fort Collins Utilities (Solar-Rebates@fortcollins.gov), required in addition to the Building Services permit for interconnection and any applicable rebate
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| 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) | City of Fort Collins Building Permits page — Solar PV (New Installation), Residential |
| 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) | City of Fort Collins Building Permits page — Solar PV (New Installation), Commercial |
| Solar PV Reinstallation (flat fee) | $65.00 | City of Fort Collins Building Permits page — Solar PV Reinstallation |
| Solar PV — Energy Storage System (ESS) (flat fee) | $65.00 | City of Fort Collins Building Permits page — Solar PV, Energy Storage System |
| Sales Tax | Calculated based on total project valuation (materials and labor) | City of Fort Collins Sales Tax page |
Review timeline
~0–0 business days
Typical estimate — confirm current times with the Fort Collins building department
Inspection process
- 1
Rough Electric
Conduit runs, wire sizing, disconnect placement before cover
- 2
Energize Electric
Fort Collins Utilities meter/energize step for the interconnected system
- 3
Final Building / Final Electric
Panel mounting, racking attachment, roof penetration sealing, and all electrical connections/interconnection verified
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
- How much does a solar permit cost in Fort Collins?
- 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.
- Do I need a separate application for solar besides the building permit in Fort Collins?
- 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.
Sources & verification
Verified against official sources. Last reviewed 2026-06-30.
- City of Fort Collins — Building Services — official building department
- City of Fort Collins — Building Permits (Solar PV New Installation, Reinstallation, ESS sections)
- City of Fort Collins — Building Code (2024 IECC Amendments — solar-ready zone requirement)
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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