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County of Douglas (CO)

Colorado Authority Having Jurisdiction Solar permitting requirements
NEC Code Version2023
Fire Code Version2018 Building Code
SolarAPP+ StatusTargeted
Wet Stamps RequiredDigital Structural,Digital Electrical
Fire Setback Enforced1

Codes

NEC Code Version
2023
Fire Code Version
2018 Building Code
Code List

2021 INTERNATIONAL RESIDENTIAL CODE

2018 INTERNATIONAL ENERGY CONSERVATION CODE WILDFIRE MITIGATION STANDARDS

2018 INTERNATIONAL FIRE CODE

2023 NATIONAL ELECTRICAL CODE

IEBC Accepted
0
ASCE Code Specification
ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status
Targeted
Any SolarAPP+ Restrictions
1
SolarAPP+ Restrictions
MPU,Derate
How Many Plansets Required
1
Revision Required
1
Rough Inspection
Rough Electrical
New Planset Required For Module Swap
0

Stamps

Ee Stamp Required On SLD
Yes
Wet Stamps Required
Digital Structural,Digital Electrical
Structural Calculations Required
Yes
Stamp Location On Plans
Unspecified
Date On Stamps
Expiration Date

Fire setbacks

Fire Setback Enforced
1
Setback Notes

Standard

Structural & loads

Wind Speed
115
Wind Notes

Exposure Category C

Snow Load
999
Snow Load Notes

*** Ground Snow Load = Roof Snow Load, _reductions for Snow Loads are not allowed._** Snow Loads are determined according to elevation: Snow Loads are determined according to elevation: ELEVATION RANGES (Feet) SNOW LOAD (PSF) 5152 - 5999 ft 30psf 6000 - 6499 ft 35psf 6500 - 6999 ft 40psf 7000 - 7499 ft 45psf 7500 - 7999 ft 50psf 8000 - 8499 ft 55psf 8500 - 8999 ft 60psf 9000 - 9499 ft 65psf 9500+ ft 70psf

Reducible Snow Load Allowed
0
Max Attachment Spacing
96
Structural Notes

Other than a Dwelling Unit, an electrical engineer’s signature and the seal is required for any photovoltaic (PV) system to be installed. A structural engineer’s signature and the seal is required for PV modules to be installed. If the letter states that the trusses need to be structurally reinforced to handle the additional weight then a **Building Permit** (https://www.douglas.co.us/documents/building-permit-application.pdf) is required, if no reinforcing is required then a **Building Permit** (https://www.douglas.co.us/documents/building-permit-application.pdf) can be submitted and only electrical inspections will be performed. Weight Roof Framing: Please provide by the Structure Engineer. * Dead Load * Snow load * Wind speed 115 mph, 3-second gust, exposure C * Type of hardware to attach Modules/Racks SE/EE digital stamps on corresponding PV pages & PE Letter / Calcs.


Make sure "IEBC" is removed from the structural analysis letter

Manually Remove the Seismic rating from the first page of the structural analysis letter.

Minimum Ground On Roof
#10

Electrical

Electrical Load Calcs Required
Derates
Allowed POI
Line Side Taps,Meter Adapter,Load Side Taps,PV Breaker
Panel Schedule Required
Partial Home Backup
Temperature Rating
90
De Rating Ampacity
0.96

Battery / ESS

Unique Battery Placards Needed
0
ESS Notes

No published information about battery placement. Mays, Jovan. AHJ: City of Lakewood (CO). Equipment in garage no longer required. [DCR 122820] Battery and inverter are supposed to be inside the garage. [DCR 083120] PM required for projects over 10kW-DC. Call out STEEL PRODUCTION METER, 120/240V 3-WIRE . Install a brass tag that says PV PROD and the house number but not the whole address. For example, if the address is 6200 West Mexico Avenue, the brass tag should say PV PROD 6200 .

Separate ESS Disconnect Required
ESS Disconnect
ESS Elevation Detail Required
No

Plan set

Plan Set Requirements

CALL OUT ALL FENCES ON PROPERTY


All equipment must be called out on site plan, including pedestal. Manufacturer's specs for


ALL PV equipment, including listing, nameplate short-circuit current (Isc) and open-circuit voltage (Voc) for modules, and direct current (DC) listing for fuses and circuit breakers used in DC circuits.

NOTE: Fuses and circuit breakers listed for use in Automobile, Marine, or telecom applications are NOT acceptable.


USE STANDARD AMBIENT TEMPERATURE CORRECTION FACTOR WHICH IS EITHER .96 OR 1.00 DERATE PER APPROVED PLANS FROM AHJ


If using the ecofasten smart slides attachment, Add the direct-to-deck mounting engineering letter for eco-fasten slides. (LOCATED IN THE FILES SECTION OF DATABASE)


Add SFM UL2703 cert and RockIt installation guide pages referencing grounding and bonding and compatibility with PV modules.

Site

If the UM is within 3' of an AC Unit. Meter Upgrade and Relocation is required

Attachment Detail

Include spec sheets showing module compatibility

Electrical Diagram

TLD and SLD both required. Indoor taps shall comply with 240.21 and may not exceed 25’. Minimum EGC #6 CU for load side tap. 250.122.

Label Page

EcoFasten spec sheet for Direct-to-Deck application.

Custom Placards Required
1
Non Standard Planset Requirements
Single Line Diagram

Ground mount

Ground Mount Fencing Required
Mesh/Scrim
Ground Mount Notes

Setback requirements vary by lot. Contact Zoning for specific setback requirements. Ground screws allowed with engineering. Freeze/Thaw depth: 3' Gravel Base not needed.

Compiled from public records, 2026. Requirements change with code cycles and local amendments. Verify with the County of Douglas (CO) building department before you rely on this, and treat it as a research head start, not a ruling. Getting quotes? Run them through the quote checker first.