Which electric companies serve McKinney?
Three utilities own the lines in McKinney: Oncor, CoServ and GCEC. Each one sends its own crews when a storm brings wires down.
| Utility | Who they are | Can you shop for a power company? |
|---|---|---|
| Oncor | A wires-only company. It sells no power. | Yes, from the plan list. |
| CoServ | A member-owned co-op in Corinth that delivers and sells power. It names Craig Ranch in McKinney as one of its big projects. | No. Its board sets one rate. |
| GCEC | Grayson-Collin Electric Cooperative, in Van Alstyne. It names a "McKinney East" service area. | No. Its board sets one rate. |
Co-ops and city utilities choose for themselves whether to join the state's choice program. The Commission's FAQ on these utilities says they may join at any time. Until one does, its members pay its own rate. On Oncor's lines, the company you choose is a retail electric provider. Our REP guide explains which job is whose.
A GCEC alert dated November 30, 2023 shows how close the lines run. It blames a McKinney East outage on a metering point that GCEC shares with Oncor. Two utilities can sit side by side, even on one block.
Frisco, to the west, splits the same way between Oncor and CoServ, with no GCEC.
What do the three utilities charge in McKinney?
It depends on the utility. An Oncor home pays the plan it picks, and a co-op home pays its co-op's rate. Every price below is in cents per kWh and is an average across the whole bill. Delivery and monthly charges are folded in. Taxes are not. The Oncor-area rows are plans anyone in that area can buy. The co-op rows come from each co-op's own rate page.
| Rate | 500 kWh | 1,000 kWh | 2,000 kWh |
|---|---|---|---|
| Lowest plain plan, Oncor area | 12.1¢ | 12.0¢ | 11.8¢ |
| Median plain plan, Oncor area | 13.7¢ | 13.2¢ | 13.0¢ |
| CoServ Standard | 14.48¢ | 12.98¢ | 12.23¢ |
| GCEC Farm and Home | 17.7¢ to 19.7¢ | 15.2¢ to 17.2¢ | 14.0¢ to 16.0¢ |
We call a plan "plain" when it has a fixed rate for 12 months and no bill credit or usage fee flag, and it is neither prepaid nor time-of-use. Free-nights and bill-credit plans are in our cheapest plans guide. CoServ changes its price each month through a power-cost adjustment. That was minus 1.3¢ in October and minus 1.0¢ in September.
GCEC posts a $25 base charge, a $0.137 energy charge and a "current month PCRF" of 1¢. Its page does not show whether the 1¢ is added or taken off. So the table shows both ends. GCEC says a PCRF is plus when its costs run above its estimate and minus when they run below.
Choose the company on your bill to see the co-op rates next to Oncor-area plans.
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The page prices did not load. Reload the page to try again. The rate table above has the same numbers.
This tool is a rough guide. Taxes, bill credits and fees are not in its math. A plan's facts label shows what you would pay, and each co-op's rate page shows its price this month.
How can you tell which utility serves your McKinney home?
Your bill or your meter's ESI ID settles it. A map only narrows it down. CoServ posts a map of its service boundary, and we placed it over the Census Bureau's outline of McKinney and measured the land. About 27.7% of McKinney falls inside CoServ's boundary. On 25.1% of the city, CoServ is the only company with a certificate. The other 72.3% lies outside CoServ's boundary, so Oncor, GCEC or both hold the certificate there.
We measured CoServ's own boundary map against Census lines, with flat-map area math. A shared area has more than one certificate holder, and that is all it tells you. We found no public GCEC map, so the outside land cannot be split between Oncor and GCEC. CoServ last edited its map layer on December 12, 2018.
The next table runs the same math for each McKinney ZIP code. It counts only the part of a ZIP that lies inside McKinney.
| ZIP | Share of McKinney's land | Land inside CoServ's boundary | CoServ alone |
|---|---|---|---|
| 75069 | 23.3% | 0% | 0% |
| 75070 | 16.3% | 78.8% | 63.0% |
| 75071 | 41.9% | 17.6% | 17.6% |
| 75072 | 17.4% | 43.4% | 43.2% |
ZIP 75069 sits outside CoServ's boundary in McKinney, so its homes are Oncor or GCEC. The other three ZIP codes mix CoServ land with the rest. Even a ZIP that is mostly CoServ land can hold homes on another utility, because the map shows certificates and not meters. These steps give a firm answer:
- 1Open your latest bill.
Look at who sent it. A co-op name means a co-op. A power company's bill says the lines are Oncor's.
- 2Find your ESI ID.
That is the number of your meter. Oncor's lookup can pull it up from an address, and our guide to who your electric utility is explains the digits. No match from Oncor? Call the two co-ops.
- 3Call the co-ops.
CoServ Customer Care is 940-321-7800, Monday to Friday, 8 a.m. to 5 p.m. Central. The GCEC office is 903-482-7100.
What do CoServ and GCEC charge their members?
CoServ adds a $15 base charge to 11.48¢ per kWh on its Standard rate. GCEC adds a $25 base charge to 13.7¢, plus or minus its 1¢ power-cost factor. The fees and deposits differ too.
| Item | CoServ | GCEC |
|---|---|---|
| Monthly base charge | $15 | $25 |
| Energy price per kWh | 11.48¢ for Standard, adjustments included | $0.137, plus or minus 1¢ for the PCRF |
| Start-up fees | $40 connection fee | $20 membership (refundable), $35 transfer or reconnect, $10 credit check |
| Deposit | Set by a credit check, never above $300 | Set after the credit check |
| Time-of-use choice | Summer Savings: 7.87¢ off-peak and 20.23¢ on-peak (3 p.m. to 8 p.m., May to October) | $28 base, 11.5¢ off-peak and 25.0¢ on-peak (2 p.m. to 7 p.m., weekdays) |
CoServ tells members they never have to shop around, and its agents can match you to a rate by looking at your use. GCEC changed its rates on November 1, 2023. Its notice put the revenue gain at about 8.75%.
A co-op member can skip the plan list on Power to Choose. Those plans are closed to you. Your co-op's rate page is the whole price list.
What are you paying for on a McKinney electric bill?
Energy, delivery, a base charge and the city's sales tax. What you can shop depends on your utility, and it is a smaller slice than many people expect.
| Line | Oncor homes | Co-op homes |
|---|---|---|
| Energy charge | Set by the power company you choose, so you can shop it. | Set by the co-op's board as one rate. |
| Delivery charge | Oncor's, at a rate the state approves, the same for every company. | Built into the co-op's rate. |
| Base or monthly charge | Part of your plan | $15 at CoServ and $25 at GCEC |
| City sales tax | McKinney is on the Comptroller's list of cities that tax home power. | The same city tax applies. |
For an Oncor home, our Oncor guide shows what the delivery charge adds each month. Scan the bill for a city tax line too. The Comptroller's list names cities that add a local sales tax to home gas and electricity, and McKinney is one. The city sets the rate. No plan price includes it.
How do you turn on power in a new McKinney home?
Start with the utility. After that you know if you have choices.
- Learn who deliversCheck the last bill or the lease, or look up the address. The answer tells you if shopping is open to you.
- Oncor: choose a planCompare the plans for your ZIP, and read the 500, 1,000 and 2,000 kWh prices on each facts label.
- Co-op: apply for serviceCoServ charges a connection fee and may ask for a deposit. GCEC wants a state ID and a Social Security number for each person on the account.
- Pick the dateGCEC asks for 5 to 7 business days of notice, so apply early and avoid a gap.
Rent a home or an apartment? Ask the landlord which utility is on the lease. For an Oncor address, see our guides to setting up electricity and same-day service.
Where do you report a McKinney outage?
Report it to the utility that owns your poles: Oncor, CoServ or GCEC. A power company you picked cannot fix the lines.
| Utility | How to report | Good to know |
|---|---|---|
| Oncor | 888-313-4747, or text OUT to 66267 | Oncor repairs lines for all companies that sell on them. |
| CoServ | 855-938-3496 (electric emergency) | The co-op repairs its own lines. |
| GCEC | 903-482-7111 (automated line), or text OUT to 855-939-3826 | Text from the phone number tied to your account. |
Oncor says it is upgrading service in McKinney. Its page lists pole checks, tree trimming and new poles and equipment, in phases through January 2027, weather permitting. It also says crews may need to close a road or a lane at times. The page has no date.
Our guide to reporting a power outage covers what to do while you wait.
What should an Oncor home check before signing?
Confirm that Oncor serves you first. Then run through this list.
- You have confirmed that Oncor delivers to your address
- The rate stays put for the full term
- The prices at 500, 1,000 and 2,000 kWh on the label all look fair
- Leaving early costs little or nothing
- Picking a plan before you know if a co-op serves you. A co-op home cannot buy it.
- A bill credit you have to earn, which can vanish if your use dips a bit
- A deposit or fee you cannot explain. Ask what it covers.
- A term of one to three months, since the price can leap when it ends
For how the state list works, read our guide to Power to Choose. A signed plan is a contract, so hold on to its facts label.
CoServ or GCEC on your bill? The plan list is not for you, so ask your co-op which of its rates fits your use. Oncor on your bill? Compare plans at your ZIP.
Compare plans at my ZIPA partner runs the plan finder. If you sign up, it may pay us a fee, and that never moves a rating or a score.
Questions, answered
Who supplies electricity in McKinney?
Three utilities share the city. Oncor serves a large part of it, and the co-ops CoServ and GCEC serve other parts. An Oncor home picks a power company. A co-op home buys from the co-op.
Can I pick my own power company in McKinney?
Only at an Oncor address. CoServ and GCEC members cannot pick, since each co-op sets its own rate. Your bill or your meter ID shows which one you have.
What is GCEC, and where is McKinney East?
GCEC is Grayson-Collin Electric Cooperative, a member-owned utility based in Van Alstyne. It calls part of McKinney its McKinney East service area. We found no public map of it, so call 903-482-7100 to check an address.
Is GCEC or CoServ cheaper in McKinney?
On the rates posted October 25, 2026, CoServ Standard came to 12.98¢ per kWh at 1,000 kWh, and GCEC Farm and Home to 15.2¢ to 17.2¢. You cannot choose between them, though. The lines at your address decide which one serves you.
Is Craig Ranch served by CoServ?
CoServ names Craig Ranch, McKinney, among its notable developments. Individual streets can differ, so read your bill before you shop.
Which McKinney ZIP code has no CoServ land?
75069. Our map math finds none of its McKinney land inside CoServ's boundary, so homes there are on Oncor or GCEC. Your bill shows which.
What does GCEC charge to start service?
A $20 membership fee that comes back when you leave, a $35 transfer or reconnect fee and a $10 credit check fee. GCEC asks for 5 to 7 business days of notice and may ask for a deposit after the credit check.
How long will Oncor's work in McKinney last?
Oncor says its McKinney work, which includes pole checks, tree trimming and new poles and equipment, will run in phases through January 2027, weather permitting. Crews may close a road or a lane at times.
What do you want to do next?
Sources and updates
Sources (16)
- CoServ, Residential rates: The Standard and Summer Savings rates, the $15 monthly charge and the October 2026 power-cost adjustment of minus 1.3 cents. Checked October 25, 2026.
- CoServ, Set up residential service: The $40 connection fee, the $300 deposit ceiling and the Customer Care hours. Checked October 25, 2026.
- CoServ, Residential service and contacts: The Customer Care and electric emergency phone lines. Checked October 25, 2026.
- CoServ, Developing with CoServ: Craig Ranch, McKinney, in CoServ's list of notable developments. Checked October 25, 2026.
- CoServ, Electric service boundary map: The public web map and its boundary layer with certification areas, last edited December 12, 2018. The shares of land are ours.
- U.S. Census Bureau, TIGERweb places and ZIP code tabulation areas: The outline of McKinney and the ZIP areas we measured the boundary map against.
- Grayson-Collin Electric Cooperative, Electricity rates: The Farm and Home and Time of Use rates, the $25 base charge, the 13.7 cent energy charge and the 1 cent current-month PCRF. Checked October 25, 2026.
- Grayson-Collin Electric Cooperative, Start or stop service: The $20, $35 and $10 start-up fees, the ID rules and the 5 to 7 business day notice. Checked October 25, 2026.
- Grayson-Collin Electric Cooperative, Report an outage: The automated outage line and the text number. Checked October 25, 2026.
- Grayson-Collin Electric Cooperative, Alert: McKinney East power outage, November 30, 2023: The McKinney East service area and the metering point GCEC shares with Oncor.
- Grayson-Collin Electric Cooperative, 2023 electricity rate change: The November 1, 2023 change, the 8.75 percent revenue gain and GCEC's definition of the PCRF.
- Oncor, Collin County service improvements: The McKinney work through January 2027, the possible road or lane closures, the outage number and the text-OUT number. The page carries no date. Checked October 25, 2026.
- Oncor, ESI ID lookup: A tool that returns the meter ID for an address on Oncor's lines.
- Texas Comptroller of Public Accounts, Cities with local sales and use tax on residential use of gas and electricity: McKinney is on the list. Checked October 25, 2026.
- Public Utility Commission of Texas, Frequently asked questions about municipal utilities and co-ops: Members of a co-op or city utility do not pick a power company until it joins customer choice, which it may do at any time.
- Public Utility Commission of Texas, Power to Choose plan list: Oncor-area prices at 500, 1,000 and 2,000 kWh, pulled Oct. 24, 2026.
Changelog · last updated October 25, 2026 · 1 update
- October 25, 2026: Page published.
How to cite this page: The Day Company, "McKinney electricity: Oncor, CoServ or GCEC?", updated October 25, 2026, https://theday.company/tx/mckinney-electricity.
The Day Company has no tie to Oncor, CoServ, GCEC, the City of McKinney or any power company named here. We measured the land shares ourselves on a public map that CoServ last edited in 2018, and they show certificates on land and not the utility at any one house. Co-op rates move, and plan prices move daily. This guide is general information and not legal advice.