Texas is the #1 solar state in America, but getting a permit and Permission to Operate (PTO) is still one of the biggest headaches for DFW installers. This is the complete, up-to-date guide.
Why permitting feels so painful in Texas
- No statewide process. Every city, county, and utility has its own rules.
- Two separate approvals required. Your project goes through both an AHJ (Authority Having Jurisdiction — the city or county building department) and the utility (Oncor, CoServ, or TNMP in north Texas). They don't share a queue, they don't share a portal, and finishing one doesn't finish the other.
- Average DFW timeline: 2–6 weeks, sometimes longer if resubmissions are needed.
Who actually reviews your solar installation
There are two parallel review tracks for every residential solar project, and the contractor runs both at the same time:
- The AHJ reviews building, electrical, and fire code. They issue a permit, do a post-install inspection, and stamp the project as "finaled."
- The utility reviews how the system affects their distribution grid. They want a single-line diagram, photos of placards and disconnects, and they'll reprogram the bidirectional meter and issue PTO.
The two tracks are sequential in one specific way: most utilities won't issue PTO until they see proof the AHJ has finaled the permit. So if your city is slow, your utility waits — even if their own queue is empty.
Step by step: the real process (residential rooftop)
- Design + package prep. Site plan, electrical single-line diagram (SLD), structural calcs, equipment cut sheets.
- Submit to AHJ. Online portal (Energov, eTRAKiT, AvolveCloud, ProjectDox, depending on the city). Most DFW cities now accept digital submissions.
- Plan review + permit issuance. 5–14 business days typical. Some cities are faster (Frisco, Plano, Allen) and some slower (Dallas, Fort Worth) when the queue is backed up.
- Install the system.
- Pass inspections. Rough-in (depending on city) plus a final electrical/building inspection.
- Submit to utility (Oncor eTRACK, CoServ, or TNMP). After AHJ sign-off → the utility queues your interconnection for PTO and meter reprogram.
- System goes live.
A pro tip on speed: recent legislation (SB 1202, 2025) lets a licensed third-party engineer review residential solar plans. Once they approve, the AHJ must issue the permit in 2 business days. Most cities are still adjusting to this — adoption is uneven — but where it's accepted, it can cut weeks off the timeline.
Most common documents required
Every DFW AHJ asks for some version of this list:
- Roof / site plan with fire-access pathways (most cities require 36" aisles; Coppell wants both sides of ridge).
- Electrical single-line diagram (SLD). This is the #1 reason for rejection — incomplete diagrams or missing labels.
- Structural engineering letter or stamped calcs. Required by virtually every DFW jurisdiction. The PE must be Texas-licensed and the seal must be current.
- Panel, inverter, and racking cut sheets — manufacturer datasheets for every component.
- NEC warning labels — for the placards installed on the disconnect, the main panel, and the array.
- HOA approval letter if applicable. Most DFW suburbs are HOA-governed.
DFW + Oncor specifics (your daily reality)
A few city-specific notes for the highest-volume DFW jurisdictions:
- Coppell. ~$240 flat fee, online portal, often requires PE-stamped plans. Strict on fire-access pathway (both sides of ridge, not just one).
- Dallas + Fort Worth. $200–$400 fees, 5–14 day reviews. The two largest AHJs in DFW; queues vary seasonally.
- Plano + Frisco + Allen. Generally faster than Dallas / Fort Worth. Plano uses eTRAKiT — the "Solar (PV)" permit type is its own category, easy to miss.
- Oncor eTRACK. Streamlined for systems ≤500 kW. Submit after AHJ approval → usually 2–4 weeks to PTO. The single biggest rejection driver is the Visible Lockable Lockable Disconnect (VLLD) being out of spec or out of sight from the meter.
For a per-city deep dive, see the City directory on the Learning Center home page. We pull the requirements live from our database, so what you read there matches the checklist contractors use inside TexPTO.
Recent good news (2025–2026)
- SB 1202 speeds up reviews via third-party engineer review.
- More cities have online portals, which has cut weeks off submission prep across most of DFW.
- Oncor's Residential Solar + Storage rebate — up to $9,000 with a battery in 2026, depending on system size and stack.
The real cost of delays
Every extra week of permitting equals lost crew time, delayed cash flow, and fewer installs per year. Most installers we work with treat the AHJ-to-PTO window as a primary operational metric — every day shaved improves cash collection and crew utilization.
The biggest leverage point is getting the first AHJ submittal right. A typical rejection costs 7–14 days. A clean package that doesn't bounce is worth more than fast plan-review at any specific AHJ.
Where to go next
- For why PTO specifically takes so long, see What is PTO and why does it take so long?.
- For the Oncor side specifically (eTRACK, VLLD, photo packages), see Oncor eTRACK interconnection: the 2026 process.
- For the most common rejection reasons across DFW + how to avoid them, see Common reasons solar permits get rejected.
- For per-city requirements, scroll to the city directory on the Learning Center home.