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Solar Permit in Delta, Colorado

Required for installation of roof-mounted or ground-mounted solar photovoltaic systems in Delta. The City of Delta maintains a dedicated Solar Permit Application, a Technical Permit Application (with explicit 'PHOTO VOLTAIC - AC' and 'PHOTO VOLTAIC - DC' work-type checkboxes), and a Solar Photovoltaic System Checklist — distinct forms from the generic building/electrical permit applications. Fees are calculated on the City's standard valuation-based Table 1A Building Permit fee schedule, but are capped by the City's own Table 2C Solar Permit Fees at $500 maximum total for residential and $1,000 maximum total for commercial (or actual City cost if greater), directly implementing Colorado's statewide Fair Permit Act cap (C.R.S. 24-48.5-113 / HB21-1284) at the local fee-table level.

Verified 2026-07-20 · Source

When you need this permit

  • Submit a Solar Permit Application (City of Delta Community Development form): job address, owner/contractor info, residential or commercial, roof-mount or ground-mount, system size (kW), contractor valuation and cost of materials
  • For new construction, a Building Permit must be issued prior to issuing the Solar Permit
  • Submit a Technical Permit Application selecting 'PHOTO VOLTAIC - AC' and/or 'PHOTO VOLTAIC - DC' as the type of work, for the electrical/interconnection portion
  • Complete the Solar Photovoltaic System Checklist: written approval from Delta Municipal Light & Power (ML&P) or Delta-Montrose Electric Association (DMEA) for electrical service; engineer analysis and approval for structural installation; roof plan showing system components/layout/code-required access pathways (or site plan with setbacks for a ground-mounted system); and a one-line electrical diagram showing module count/wattage, system type, conductor sizing, grounding, conduit, AC/DC disconnects, rapid shutdown control (NEC Article 690.12), and panel bus bar rating
  • All photovoltaic systems must be designed and installed in accordance with the 2018 IRC, NFPA 70 (National Electrical Code), and manufacturer specifications
  • If lot is within a floodplain, a separate Flood Plain Permit Application must also be submitted
  • The permit becomes null and void if work is not commenced within 180 days, or is suspended/abandoned for 180 days after commencing
  • Homeowners may perform their own electrical installation under the Colorado homeowner exemption if the property is their sole residence and not for sale/rental Owner-builder

Required documents

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Fee schedule

Solar Permit Fee (residential) — base calculated per Table 1A valuation, capped by Table 2CCity of Delta Schedule of City Fees and Charges, Section 2.3 'Solar Permit Fees' and Table 2C 'Solar Permit Fees' — directly fetched and text-extracted from the City's own fee-schedule PDF; implements the statewide Colorado Fair Permit Act cap (C.R.S. 24-48.5-113 / HB21-1284) at the local fee-table level
$500.00 maximum total (residential plan review separately capped at $195.00 maximum, included within the $500 aggregate)
Solar Permit Fee (commercial) — base calculated per Table 1A valuation, capped by Table 2CCity of Delta Schedule of City Fees and Charges, Table 2C 'Solar Permit Fees'
$1,000.00 maximum total (or actual cost incurred by the City for issuing the permit if greater than $1,000.00); commercial plan review separately capped at $395.00 maximum, included within the aggregate
Use Tax on solar/electrical materials (if not already included in an attached building permit's valuation)City of Delta Schedule of City Fees and Charges, § 3.04.290, Table 2C
3% of cost of materials

Review timeline

Plan review
Not published — contact the department

How long did your Solar Permit permit actually take in Delta?

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

Inspection process

  1. 1

    Structural/Roof-Mount Inspection

    Verifies racking attachment and roof penetration sealing against the engineer analysis submitted with the application

  2. 2

    Electrical Inspection

    Verifies the one-line diagram, disconnects, rapid shutdown control, and interconnection wiring against the Technical Permit's photovoltaic work type

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

Tips

  • Delta uses THREE distinct solar-specific documents — the Solar Permit Application, the Technical Permit Application (with its own 'PHOTO VOLTAIC - AC/DC' checkboxes), and a Solar Photovoltaic System Checklist — rather than folding solar into a single generic building or electrical permit.
  • Written approval from your electric utility (Delta Municipal Light & Power for in-city service, or Delta-Montrose Electric Association for DMEA territory) is a required checklist item before the permit can be issued.
  • The City's own Table 2C caps the total Solar Permit fee at $500 for residential and $1,000 for commercial (or actual city cost if higher) — this directly mirrors and implements Colorado's statewide Fair Permit Act cap, so Delta's local fee table already bakes in the state-mandated ceiling.
  • For new construction, the Building Permit must be issued before the Solar Permit can be issued; for retrofits to existing structures, the Solar Permit and Technical Permit can be filed together with the Checklist.

Frequently asked questions

Delta requires a solar permit for: Submit a Solar Permit Application (City of Delta Community Development form): job address, owner/contractor info, residential or commercial, roof-mount or ground-mount, system size (kW), contractor valuation and cost of materials; For new construction, a Building Permit must be issued prior to issuing the Solar Permit; Submit a Technical Permit Application selecting 'PHOTO VOLTAIC - AC' and/or 'PHOTO VOLTAIC - DC' as the type of work, for the electrical/interconnection portion; Complete the Solar Photovoltaic System Checklist: written approval from Delta Municipal Light & Power (ML&P) or Delta-Montrose Electric Association (DMEA) for electrical service; engineer analysis and approval for structural installation; roof plan showing system components/layout/code-required access pathways (or site plan with setbacks for a ground-mounted system); and a one-line electrical diagram showing module count/wattage, system type, conductor sizing, grounding, conduit, AC/DC disconnects, rapid shutdown control (NEC Article 690.12), and panel bus bar rating; All photovoltaic systems must be designed and installed in accordance with the 2018 IRC, NFPA 70 (National Electrical Code), and manufacturer specifications; If lot is within a floodplain, a separate Flood Plain Permit Application must also be submitted; The permit becomes null and void if work is not commenced within 180 days, or is suspended/abandoned for 180 days after commencing; Homeowners may perform their own electrical installation under the Colorado homeowner exemption if the property is their sole residence and not for sale/rental. If your project isn't listed, confirm with City of Delta Building Department (Community Development) at 970-874-7909 before starting work.

The City's Table 2C caps the total Solar Permit fee at $500 maximum for residential systems and $1,000 maximum for commercial systems (or actual city cost if greater), which implements Colorado's statewide Fair Permit Act cap under C.R.S. 24-48.5-113 (HB21-1284).

Delta does not publish a plan-review timeline for this permit. Contact City of Delta Building Department (Community Development) at 970-874-7909 for current turnaround.

You'll need: Solar Permit Application; Technical Permit Application; Solar Photovoltaic System Checklist. See the required-documents checklist on this page for details on each.

Delta requires 2 inspection(s) for a solar permit, in order: Structural/Roof-Mount Inspection, Electrical Inspection. Schedule each through City of Delta Building Department (Community Development) (970-874-7909).

Apply through City of Delta Building Department (Community Development) at 360 Main Street, Delta, CO 81416. Phone: 970-874-7909, email: comdev@cityofdelta.net. Office hours: Not published on the City's Building page or any retrieved City document this session; inspection requests are called in from 8:00 a.m. to 4:30 p.m. at 970-874-7909, per the City's Inspection Guidelines (updated 6-12-2023). General City Hall address is 360 Main Street, Delta, CO 81416, main line (970) 874-7566.. Official information: https://www.cityofdelta.net/cd/page/building.

Delta, Colorado has adopted: 2018 International Building Code (IBC) — per the City of Delta Building Department page (https://www.cityofdelta.net/cd/page/building); 2018 International Existing Building Code (IEBC); 2018 International Residential Code (IRC); 2018 International Fire Code (IFC); 2018 International Mechanical Code (IMC); 2018 International Plumbing Code (IPC) — adopted per the City's own Building page, but plumbing permitting/inspection itself is performed by the State of Colorado, not the City (see localAmendments); 2018 International Fuel Gas Code (IFGC); 2012 International Energy Conservation Code (IECC); 2023 National Electrical Code (NEC) — electrical permitting IS performed by the City of Delta (unlike several peer home-rule cities in this corpus, e.g. Montrose, where the State Electrical Board handles it); NOTE — code-edition discrepancy found and not silently reconciled: the City's own 2026 Schedule of Fees and Charges (Table 3A, Building Permit Fees valuation table) is explicitly headed 'Group (2024 International Building Code)', a newer edition than the 2018 IBC named on the Building Department page itself. Both are official City-published documents retrieved directly this session; the discrepancy is surfaced here rather than guessed at — confirm the currently-enforced IBC edition directly with the Building Department (970-874-7909) before relying on either figure for design compliance.. Local amendments apply — see the Delta overview page for the full list.

Delta has a dedicated Solar Permit Application plus a Technical Permit Application with explicit photovoltaic (AC/DC) work-type checkboxes, supported by a Solar Photovoltaic System Checklist — this is a more solar-specific process than most small Colorado cities.

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

Other permits in Delta

Residential Building Permit (New Construction)Residential Addition / Remodel PermitElectrical PermitPlumbing Permit (Issued by the State of Colorado, Not the City)Mechanical / HVAC PermitRe-Roof PermitDemolition PermitEV Charger / EVSE Permit (Electrical Permit)

Solar Permit in other cities

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