City of Irving (TX)

Texas Authority Having Jurisdiction Solar permitting requirements

NEC Code Version2023

Fire Code Version2018 Building Code

SolarAPP+ StatusTesting

Wet Stamps RequiredDigital Structural,Digital Electrical

Fire Setback Enforced1

Codes

NEC Code Version: 2023

Fire Code Version: 2018 Building Code

Code List

2021 INTERNATIONAL BUILDING CODE

2021 INTERNATIONAL RESIDENTIAL CODE

2021 INTERNATIONAL MECHANICAL CODE

2021 INTERNATIONAL PLUMBING CODE

2021 UNIFORM PLUMBING CODE

2021 INTERNATIONAL FUEL GAS CODE

2021 INTERNATIONAL ENERGY CONSERVATION CODE

2021 INTERNATIONAL EXISTING BUILDING CODE

2021 INTERNATIONAL SWIMMING POOL AND SPA CODE

2023 NATIONAL ELECTRICAL CODE

ASCE Code Specification: ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status: Testing

Any SolarAPP+ Restrictions: 1

SolarAPP+ Restrictions: Existing Systems,Trenching,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: 3 ft. fire setbacks from all ridges and edges. 18 inches either side (3ft. total) of any hip or valley where an array is mounted.

Structural & loads

Wind Speed: 115

Wind Notes: Exposure Category B

Snow Load: 5

Reducible Snow Load Allowed: 1

Max Attachment Spacing: 96

Structural Notes: Standard

Minimum Ground On Roof: #10

Electrical

AC Disconnect Required: Yes

Electrical Load Calcs Required: Derates

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

Panel Schedule Required: Partial Home Backup

Temperature Rating: 90

De Rating Ampacity: 0.91

Battery / ESS

Unique Battery Placards Needed: 0

ESS Notes

We are now submitting City of Irving Projects through a 3rd party review team. We no longer need to abide by 702.4 requirements within the AHJ. Please design towards MFG Battery requirements, and the installer Backup Load Policies.

Inspectors want to see mounting hardware screws landed to a stud not brick. Inspectors of the city of Rockwall say that the brick is just a veneer and that screws should embed into stud
Add Battery Anchoring Details to the planset showing the screws embedding on studs
Add a leader to the brick veneer photo shown on building elevation mentioning "BRICK IS JUST VENEER, BATTERY WILL MOUNT ON STUDS"

*702.4 Guidance*

AHJ Enforcing NEC 702.4 (Optional Standby Systems) for ESS Will require us to only backup essential loads whose total demand does not exceed what the # of Batteries can provide "E.G.: 1x Enphase 5P Continuous Output is 16A and if the system is designed with 3 units = 48A Continuous Load. The Backup Loads must have a Load Calc Less than or Equal to 48A. Load Calc shown on plans." (Exception: Tesla Powerwall 2/+/3 Projects)
Option 1: Submit Sales Request to change to Tesla Powerwall 2/+/3
Option 2: 702.4(B) EMS or Load Management Hardware Exception can be used in NEC 2020/2023 as to allow maximum capable backup loads (I.E.-SPAN).
Option 3: 220.87(1) Exception: Load Calculation based on Utility Meter Demand Data (Green Button - 15 min Interval over a 30 day period.).
Option 4: Load Calculations via Emporia Energy Monitoring (30 Day Period).
Option 5: Downsize loads.

*702.4 Exceptions*

Tesla Powerwall 2/+/3 can backup per the installer backup policies and do not need to meet 702.4

*ESS is required within the Whole Home Load Calculations.

Separate ESS Disconnect Required: No

ESS Elevation Detail Required: Yes

Plan set

Plan Set Requirements: Modified setbacks are not accepted. Provide paperwork showing the Rail system is Listed and Labeled for Bonding. UL 2703 marking must be on the document

Electrical Diagram

If performing LST or MPU, a (N) 200A Emergency AC Disconnect is required to be installed between the utility meter and main service panel.
Provide a photo of the existing service and interior of the Panel. (Not required for installations with panel upgrades). The AHJ requires those pics to release the permit. Must show interior wiring of the panel. One photo of deadfront on, and one photo with deadfront off.
Taps need to be UL listed and SR rated for lineside (UL documentation required)
taps installed on service conductors shall be marked “suitable for use on the line side of the service equipment” or equivalent. CONTRACTOR MUST PROVIDE VERIFICATION (AT THE TIME OF ELECTRICAL ROUGH INSPECTION) OF SUSE RATED CONNECTORS BEFORE INSTALLING CONNECTORS. Provide a photo of the line side connector that shows it is marked as stated above

*FOR TESLA ESS* - Add the following note

ESS is Listed to UL916 to utilize "Source-side" EMS per 750.30 in accordance with 750.30 (C)(1) - (C)(4) and Labeling in Accordance with 750.50.

Electrical Diagram Notes: 230.85 All service conductors shall terminate in disconnecting means having a short-circuit current rating equal to or greater than the available fault current, installed in a readily accessible outdoor location. Surge protector to be installed per 2023 NEC

Label Page

*ALL ESS*

Ensure proper ESS Labels are present
Ensure Placard is clearly labeled

Ground mount

Ground Mount Fencing Required: No