Back to Learning Center

Dallas County County · TX

Solar permitting in Dallas County, TX

Submittal requirements and process notes for residential rooftop solar in Dallas County. This page is generated from the same database TexPTO uses to drive its in-app checklists — when we update a requirement here, the live product reflects it within minutes. See the verification status below.

AI-researched on August 24, 2026 — pending TexPTO permit-desk verificationHow we verify

Utility on file

TNMP

Interconnection portal

Submission method

Online portal

Average review

~15 days

AI-researched, not yet verified

Total to PTO ~105 days · AI-researched, not yet verified

SolarAPP+

Not accepted

Last updated 2d ago

Dallas County's permit portal

https://www.mgoconnect.org/

Plan-desk contact: development@dallascounty.org

Submittal requirements

0 items

No verified requirements published for Dallas County yet.

Common rejection reasons

AI-researched, not yet verified

The most frequent reasons TNMP or Dallas County kicks back a residential solar permit. Avoid these on your first submittal to skip a 7–14 day correction cycle.

  • Missing or inadequate ASCE 7 structural calculations: Dallas County Fire Marshal strictly enforces wind uplift verification for 115–120 mph design wind speed; calculations must show racking attachment and roof load paths sealed by a licensed Texas PE. Generic 'design letter' without load summaries will be rejected.
  • Floodplain overlay violation: Dallas County Floodplain Development Permit is a hard gate — projects with ANY ground disturbance (conduit trenching, ground-mount footings) in mapped floodplain zones are rejected at DUAS intake if floodplain permit is not attached. Admin must confirm scope with DUAS (214-653-6565) before submission.
  • HOA denial on substantive grounds (not aesthetics): While TX §202.010 preempts aesthetic-only denials, HOAs (esp. Stonebridge Ranch with 70+ villages) can still deny on structural safety, setback compliance, or placement on street-facing facade per individual village guidelines. Denial letter must be addressed with statutory citation + redesign submission.
  • Oncor eTRACK vs. TNMP PowerClerk portal confusion: Oncor (transmission/distribution utility) and TNMP (retail electric provider) are separate entities. Installers unfamiliar with Dallas County often submit to wrong portal or miss Oncor's TDU authority over ground-mounted systems. If trenching occurs, Oncor application is mandatory regardless of TNMP retail relationship.
  • SB 1202 third-party review notice omitted: Optional but increasingly expected for expedited review. If AHJ delays beyond 30 days without written justification, a third-party plan review pathway (SB 1202) may be available; confirm the applicable deadlines with the AHJ. Omission defeats expedite benefit and extends timeline by 15–45 days.
  • Inverter lacks UL 1741 SA (Smart Inverter) listing: TNMP and Oncor require UL 1741 SA certification + IEEE 1547-2018 compliance documentation. Older UL 1741 (non-SA) inverters or equipment lacking anti-islanding proof will trigger utility rejection at interconnection scoping phase, requiring equipment swap and resubmission (~30 days lost).
  • Single-Line Diagram missing facility-level utility point-of-common-coupling (PCC) reference: TNMP/Oncor reject SLDs that do not clearly indicate the customer's service entrance, meter location, and utility interconnection point. Vague or missing PCC labels force diagram resubmission and delay utility intake by 7–14 days.
  • Equipment cut sheets outdated or missing UL certification numbers: TNMP and AHJ both require manufacturer data sheets with visible UL listing numbers and specifications. Incomplete or low-resolution cut sheets lacking module Voc/Isc, inverter AC/DC ratings, or disconnect voltage/ampere ratings trigger form-rejection notices.

Frequently asked questions

The questions homeowners + installers ask most about permitting in Dallas County, answered from TexPTO's verified rule database.

How long does it take to get a solar permit in Dallas County, TX?

Dallas County's plan-desk averages about 15 days from submittal to permit issuance. From first submission to PTO (utility approval), the typical residential install runs about 105 days — AI-researched, not yet verified. That's a starting point — corrections, HOA approval, and inspection scheduling can extend the cycle.

Does Dallas County accept SolarAPP+?

No — Dallas County doesn't currently accept SolarAPP+ instant permitting, so residential solar permits go through the standard plan-review process.

Where do I submit a solar permit in Dallas County?

Dallas County accepts solar permit applications through its online permitting portal. Portal: https://www.mgoconnect.org/. Plan-desk contact: development@dallascounty.org.

Which utility handles interconnection in Dallas County?

TNMP is the utility TexPTO lists for Dallas County, but other utilities may serve parts of the area — for a specific address, confirm the utility with your meter or a recent bill (the utility is the company that delivers power to this address, which may not be the one that bills you). Residential solar systems typically need both a permit from the permitting authority (where one is required) AND an interconnection agreement from the serving utility before the utility grants Permission to Operate (PTO). TNMP interconnection portal: https://www.tnmp.com.

What are the most common reasons Dallas County rejects solar permits?

Common rejection patterns for Dallas County, compiled by TexPTO from permitting requirements and industry sources (not yet verified against filed rejections): 1) Missing or inadequate ASCE 7 structural calculations: Dallas County Fire Marshal strictly enforces wind uplift verification for 115–120 mph design wind speed; calculations must show racking attachment and roof load paths sealed by a licensed Texas PE. Generic 'design letter' without load summaries will be rejected.; 2) Floodplain overlay violation: Dallas County Floodplain Development Permit is a hard gate — projects with ANY ground disturbance (conduit trenching, ground-mount footings) in mapped floodplain zones are rejected at DUAS intake if floodplain permit is not attached. Admin must confirm scope with DUAS (214-653-6565) before submission.; 3) HOA denial on substantive grounds (not aesthetics): While TX §202.010 preempts aesthetic-only denials, HOAs (esp. Stonebridge Ranch with 70+ villages) can still deny on structural safety, setback compliance, or placement on street-facing facade per individual village guidelines. Denial letter must be addressed with statutory citation + redesign submission.. Avoid these on your first submittal to skip a 7–14 day correction cycle.

Nearby jurisdictions

Other cities within 10 miles of Dallas County that TexPTO has verified rule data for.

Run a Dallas County job through TexPTO

TexPTO automates the submittal package for Dallas County: NEC labels, transmittal letter, portal cheat-sheet, HOA approval letter, and the full requirement checklist above. Enter an address, generate the package, ship it.

Start a job at this address

Information accurate to TexPTO's curated database as of the most recent review. Contractors should always verify against the AHJ's current published requirements before submitting a permit.