City of Gaithersburg (MD)

Maryland Authority Having Jurisdiction Solar permitting requirements

NEC Code Version2020

Fire Code Version2018 Building Code

SolarAPP+ StatusTargeted

Wet Stamps RequiredDigital Structural

Fire Setback Enforced1

Codes

NEC Code Version: 2020

Fire Code Version: 2018 Building Code

Code List

2021 INTERNATIONAL BUILDING CODE

2021 INTERNATIONAL RESIDENTIAL CODE

2021 INTERNATIONAL FIRE CODE

2021 INTERNATIONAL ENERGY CONSERVATION CODE

2021 INTERNATIONAL EXISTING BUILDING CODE

2021 INTERNATIONAL FUEL GAS CODE

2021 INTERNATIONAL MECHANICAL CODE

2021 INTERNATIONAL PLUMBING CODE

2020 NATIONAL ELECTRICAL CODE (NEC)

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: 0

New Planset Required For Module Swap: 0

Stamps

Wet Stamps Required: Digital Structural

Structural Calculations Required: Yes

Stamp Location On Plans: Top Right

Date On Stamps: Expiration Date

Fire setbacks

Fire Setback Enforced: 1

Setback Notes: Standard

Structural & loads

Wind Speed: 115

Wind Notes: Exposure Category B

Snow Load: 25

Reducible Snow Load Allowed: 1

Max Attachment Spacing: 96

Structural Notes: Standard

Minimum Ground On Roof: #10

Electrical

Electrical Load Calcs Required: Derates

Allowed POI: PV Breaker,Load Side Taps,Meter Adapter,Line Side Taps

Panel Schedule Required: Partial Home Backup

Temperature Rating: 90

De Rating Ampacity: 0.91

BOS Restrictions: If there is to be a fused disco inside, use a flush-mounted breaker housing instead of a surface-mounted knife-blade switch. Former is aesthetically pleasing. Latter is not. If lineside tap they require a fused disconnect to be installed inside the home with a non fused disconnect outside.

Battery / ESS

Unique Battery Placards Needed: 0

ESS Notes: Standard

Separate ESS Disconnect Required: ESS Disconnect

ESS Elevation Detail Required: No

Plan set

Plan Set Requirements: If there is to be a fused disco inside, use a flush-mounted load center with breaker instead of a surface-mounted knife-blade switch. Former is aesthetically pleasing. Latter is not. Check service cable to see if frayed If so will require replacement to pass inspection If lineside tap they require a fused disconnect to be installed inside the home with a non fused disconnect outside. If finish basement please design using flush mount load center.

Ground mount

Ground Mount Fencing Required: Mesh/Scrim