Solar Panel Installation in McKinney, TX
Local sun, utility rules, permits and installers
McKinney has about 1,360 kWh a year per kW of rooftop solar (our estimate). What exported power earns depends on your retail electric provider or utility; see the rules for Oncor and Grayson-Collin Elec Coop, below, then get quotes.
McKinney solar at a glance
Utility rules and programs for McKinney
Oncor and Grayson-Collin Elec Coop, serve Collin County, so which rules apply depends on your address.
| Utility | Type | Solar export rule |
|---|---|---|
| Oncor Electric Delivery | wires company (you choose your plan) | Oncor delivers power and does not buy it; your retail electric provider decides what exported power earns. Your installer files the interconnection, and you cannot operate until Oncor sends its permission-to-operate letter (state rules give Oncor 30 days from a complete submission). |
| Grayson-Collin Elec Coop, Inc | member-owned cooperative | Ask this utility for its current solar export rate and programs; we have not verified them. In the retail-choice area your retail electric provider sets what exported power earns. |
Program details are from each utility’s own pages (read October 2026). See the Texas incentives table for statewide credits and a status for every program.
Permits and approvals in McKinney
- City of McKinney Building Inspections: permit information · 469-617-4800
- The page lists residential solar as a permit-required item: apply in the Citizen Self Service portal and attach the Solar and Wind Energy Conversion Systems checklist. Electrical contractors must register with the city before a permit is issued.
- The utility must approve the connection before you switch on: Oncor · your own utility’s interconnection page.
- Check any contractor on the TDLR license search before you sign.
- Texas law limits what an owners’ association can do to keep out solar panels, though it can set some placement rules (Property Code 202.010).
Fees and steps change; confirm with the office before you start. We have not verified timelines for McKinney.
Costs and savings
We do not have verified installed prices for McKinney alone. The Texas figures above show what to expect; real quotes depend on your home, equipment and installer. Try the solar savings calculator, and get at least two written quotes.
Choosing an installer
- License: check the contractor on the TDLR license search and that the license covers this work.
- Quote: ask for an itemized written quote that names the equipment, warranties and who pulls the permit and handles the utility approval.
- Compare: get two or three quotes and compare them line by line, not only the total.
Get solar quotes in McKinney
Tell us about your project in McKinney. We reply ourselves and match you with a licensed installer who serves your area. It is free, with no obligation, and nothing is shared with an installer unless you choose one.
More for McKinney
Home Battery Installation in McKinney · Backup Generator Installation in McKinney · Home EV Charger Installation in McKinney · McKinney energy guide · Texas energy guide.
Solar Panel Installation in McKinney FAQs
Is solar worth it in McKinney?
The sun is strong (about 1,360 kWh a year per kW, our estimate). Texas has no statewide net metering, so what exported power earns depends on your utility or retail electric provider; solar pays most when sized to what you use at home or paired with a battery. See the Texas incentives for the property-tax exemption.
Is there a federal solar tax credit in 2026?
No. The federal 25D credit ended for expenditures after December 31, 2025. Texas has no state income tax credit for solar; the property-tax exemption (Tax Code 11.27) for the value solar adds to your home is separate.
Do I need a permit for solar panels in McKinney?
Usually yes, and the utility may need to approve solar and batteries. City of McKinney Building Inspections handles permits in McKinney; see the permit information above.
How do I find a licensed installer in McKinney?
Use the quote button on this page. We reply ourselves and match you with a licensed installer who serves your area; you can check any contractor on the TDLR license search.
Sources: sunshine and climate NASA POWER; hazards FEMA National Risk Index; utility numbers EIA-861 (2024); prices EnergySage (October 2026) and Generac (U.S.); credits IRS and the Texas Comptroller; permit information from the city or town’s own page; utility programs from each utility’s own pages (October 2026). General information, not financial, tax, legal or electrical advice. See our editorial policy.