Do I Need a Permit for Solar Panels in McKinney, TX?
Solar permitting in McKinney is notably different from California. There's no SolarAPP+ instant permit platform, no NEM 3.0 avoided-cost export pricing shock, and no state-mandated automated approval pathway — but the flat $150 permit fee, single-agency process through McKinney Building Inspections, and Texas's strong HOA solar protection law make McKinney a reasonable market for solar. Oncor's distributed generation tariff governs how excess solar is credited to the electric bill. The federal 30% ITC is the primary financial incentive. And unlike California, Texas homeowners considering solar don't need to worry about the state eliminating their export credit structure.
McKinney solar permit rules — the basics
McKinney's fee schedule explicitly lists a "Residential Solar Panel System" permit at a flat $150. This is applied for through the CSS portal at mckinneytexas.org/css by the licensed solar contractor. Unlike California's SolarAPP+ automated approval system (used by Fremont, Santa Clarita, and other CA cities), McKinney uses its standard CSS plan review process — the contractor submits the solar system design documents, structural calculations, and electrical diagrams, and the McKinney plan reviewer evaluates them before permit issuance. For standard residential rooftop solar systems, the review typically takes a few days to two weeks.
Panel upgrades are a separate permit line. If the solar installation requires upgrading the home's electrical service panel (common when adding a large solar array to an older home with 100A service), a separate $40 electrical permit is required in addition to the $150 solar permit. The McKinney Building Inspections Solar page confirms that panel upgrades associated with solar require a separate electrical permit. The solar contractor handles both permit applications through CSS.
Oncor's distributed generation (DG) tariff governs solar energy export crediting in McKinney. Unlike California's retail-rate NEM 2.0 or avoided-cost NEM 3.0, Texas's distributed generation tariff structure varies by distribution utility. Oncor's residential DG program credits excess solar production at an "avoided cost" rate — not full retail rate — similar in concept to California's post-NEM 3.0 export pricing. However, McKinney's electricity rates are lower than California's, and solar payback periods in North Texas are competitive when systems are sized for self-consumption. The sunny Collin County climate (abundant sun, unlike Tacoma or Spokane) makes solar viable. Verify current Oncor DG tariff terms with your solar installer — rates and program terms change.
Texas Property Code Section 202.010 is the state's HOA solar protection law. It prohibits homeowner associations from including covenants, conditions, or restrictions that effectively prohibit or unreasonably restrict a property owner's right to install a solar energy device. HOAs may impose "reasonable" restrictions on installation location, aesthetics, and screening — but they cannot ban solar outright, require the solar panels to be invisible from the street, or require installation methods that significantly increase system cost. This protection applies to all McKinney HOA communities — Stonebridge Ranch, Craig Ranch, Painted Tree, Trinity Falls, and Windsong Ranch cannot ban solar on owner-occupied homes. Provide your HOA with the proposed system design (layout, panel locations, racking) and the installer's documentation, and they must work within the bounds of Section 202.010.
Three McKinney solar scenarios
| Solar Topic | McKinney TX Details |
|---|---|
| City permit required? | Yes — $150 flat-fee Residential Solar Panel System permit via CSS portal. Standard plan review (5–10 days). No SolarAPP+ automated path (California-specific). |
| Oncor interconnection | Required for grid-tied systems. Submit Oncor DG interconnection application after city permit. Credits excess at avoided-cost rate (not retail). Timeline: 2–6 weeks after permit. |
| HOA protection | Texas Property Code §202.010 prohibits HOAs from effectively prohibiting solar. HOAs may impose reasonable aesthetic restrictions. Cannot ban outright or require invisible placement. |
| Federal incentive | 30% ITC (Investment Tax Credit) on total installed cost — panels, inverter, racking, labor, battery storage if included. IRS Form 5695. At 30% through 2032. |
| Panel upgrade with solar | Requires separate $40 electrical permit in addition to $150 solar permit. Both applied via CSS portal. |
What solar installations cost in McKinney
North Texas solar pricing is moderate compared to Bay Area California. System costs run $2.60–$3.60 per watt installed. An 8 kW system: $20,800–$28,800; after 30% ITC: $14,560–$20,160. A 9 kW system with 13.5 kWh battery: $33,000–$50,000; after 30% ITC: $23,100–$35,000. McKinney's flat $150 permit fee represents under 1% of system cost. Oncor's DG tariff terms affect long-term financial returns — get your installer to model system payback using current Oncor DG avoided-cost export rates and current retail electricity rates, not California NEM assumptions. McKinney's excellent sun hours (similar to other Collin County addresses, typically 4.5–5.2 peak sun hours/day) support good solar production year-round.
Hours: M–F 8 a.m.–5 p.m. | Online (CSS): mckinneytexas.org/css
Solar permit fee: $150 flat | Panel upgrade: additional $40 electrical permit
TX solar contractor license: TDLR (tdlr.texas.gov) or CSLB equivalent
Oncor interconnection: oncor.com (search "Distributed Generation")
Federal ITC: IRS Form 5695 | TX Property Code solar protection: §202.010
Common questions about McKinney solar panel permits
What permits do I need for solar panels in McKinney?
A $150 flat-fee Residential Solar Panel System permit from McKinney Building Inspections via CSS (mckinneytexas.org/css). If your electrical panel also needs upgrading, a separate $40 electrical permit is required. After city permit and installation, submit Oncor's Distributed Generation interconnection application separately for grid-tied operation. Contact Building Inspections at 469-617-4800 with questions.
Can my McKinney HOA block solar installation?
No. Texas Property Code Section 202.010 prohibits HOAs from including or enforcing restrictions that effectively prohibit or unreasonably restrict a property owner's right to install a solar energy device on their own home. The HOA may impose reasonable aesthetic restrictions (panel placement on rear vs. front slope, if both are viable) but cannot ban solar outright or require panels to be invisible from the street. Notify your HOA in writing of your planned installation and cite §202.010 if you encounter resistance.
Does McKinney use SolarAPP+ for instant solar permits?
No. SolarAPP+ and the California SB 379 automated permitting requirement are California-specific. McKinney uses its standard CSS portal plan review process for solar permits. The contractor submits system design documents, structural calculations, and electrical diagrams through CSS, and McKinney plan reviewers evaluate them before permit issuance. For standard residential rooftop systems, review typically takes 5–10 business days.
How does Oncor credit solar energy in McKinney?
Oncor's Distributed Generation (DG) tariff governs how excess solar production is credited. The credit rate is based on avoided cost rather than full retail rate — similar in concept to California's post-NEM 3.0 export pricing. Texas does not have a statewide mandatory retail-rate net metering requirement. System sizing for self-consumption (matching solar production to household load without exporting much excess) is the most financially efficient strategy under Oncor's DG tariff. Confirm current DG tariff terms with your installer and at oncor.com.
What is the federal solar tax credit for McKinney homeowners?
The federal Investment Tax Credit (ITC) under IRS Section 25D provides a 30% credit on the total installed cost — panels, inverter, racking, labor, and battery storage if included with solar. For a $25,000 system, this is $7,500 in federal tax credit. Claim on IRS Form 5695 in the tax year the system receives Permission to Operate from Oncor. Currently at 30% through 2032. Unlike California, Texas does not offer a separate state-level solar tax incentive, but the federal ITC remains the primary incentive.
Is battery storage worth adding to a McKinney solar system?
It depends on your priorities. Battery storage in McKinney serves two purposes: improving solar economics under Oncor's avoided-cost DG tariff (using stored solar during evening peak hours avoids buying grid electricity) and providing backup power during grid outages — a concern many McKinney homeowners have after experiencing Winter Storm Uri and subsequent grid events. The federal 30% ITC covers battery storage when installed with solar. For households with EV charging, high evening usage, or past experience with grid outages, battery storage can be a compelling addition.
This page provides general guidance based on publicly available sources as of April 2026, including McKinney Building Inspections, McKinney Fee Schedule, Texas Property Code §202.010, and Oncor DG tariff information. Solar incentives, permit fees, and tariff terms change. For a personalized report based on your exact address, use our permit research tool.