Collin County, Texas: power grid and siting data
Collin County is in ERCOT's NORTH load zone. It has 67 mapped substations, owned mostly by Oncor, Grayson Collin Electric Cooperative Inc and Brazos; the highest voltage is 345 kV. The ERCOT queue lists 0 generation projects and 5 battery storage projects here.
Substations in Collin County
8 at 345 kV, 56 at 138 kV, 3 at 69 kV and below. The 30 highest-voltage stations are listed; the map shows all 67.
| Substation | Voltage | Owner | Lines | |
|---|---|---|---|---|
| Anna | 345 kV | Oncor | 10 | map |
| Allen Switching | 345 kV | Oncor | 9 | map |
| West Plano | 345 kV | Oncor | 7 | map |
| Unnamed station | 345 kV | Garland City Of | 6 | map |
| Farmersville | 345 kV | Oncor | 6 | map |
| Unnamed station | 345 kV | Oncor | 5 | map |
| Tap302443 | 345 kV | Grayson Collin Electric Cooperative Inc | 3 | map |
| Collin | 345 kV | Oncor | 3 | map |
| Wylie Switchyard | 138 kV | Garland Power & Light | 8 | map |
| Unnamed station | 138 kV | Oncor | 7 | map |
| Unnamed station | 138 kV | Oncor | 5 | map |
| Frisco | 138 kV | Oncor | 5 | map |
| Unnamed station | 138 kV | Garland City Of | 4 | map |
| Unnamed station | 138 kV | TNMP | 4 | map |
| North Parkway | 138 kV | Oncor | 4 | map |
| Unnamed station | 138 kV | Oncor | 3 | map |
| Unnamed station | 138 kV | Plano City Of | 3 | map |
| Tap302484 | 138 kV | Grayson Collin Electric Cooperative Inc | 3 | map |
| Tap302691 | 138 kV | Farmers Electric Cooperative Inc | 3 | map |
| Plano Parker Road | 138 kV | Oncor | 3 | map |
| Lebanon | 138 kV | Brazos | 3 | map |
| Tap307848 | 138 kV | Fannin County Electric Cooperative Inc | 3 | map |
| Tap307925 | 138 kV | Brinkmann Ranches | 3 | map |
| Tap307967 | 138 kV | Grayson Collin Elect Corp | 3 | map |
| Lebanon | 138 kV | Brazos | 3 | map |
| Unnamed station | 138 kV | Plano City Of | 3 | map |
| Unnamed station | 138 kV | Grayson Collin Electric Cooperative Inc | 3 | map |
| Tap310745 | 138 kV | Farmers Electric Cooperative Inc | 3 | map |
| Unnamed station | 138 kV | Grayson Collin Elec Co Op | 2 | map |
| Unnamed station | 138 kV | Texas Instruments Inc | 2 | map |
ERCOT interconnection queue
No generation projects are queued in Collin County. 5 battery storage projects are queued, 4 with a signed interconnection agreement.
From the ERCOT GIS report. Project names, developers, MW and dates are on Pro.
Planned transmission
10 planned grid projects touch Collin County: 3 new substations, 6 new or rebuilt lines and 1 substation upgrade, 4 at 345 kV or above.
Wholesale power prices
The NORTH load zone averaged $39.98/MWh day-ahead over the last 7 days. Nearest generator pricing nodes: FRMR_BS2_RN1 $40.05, OLIN_OLING_1 $40.33 and DRAK_ESS_RN $40.34.
ERCOT day-ahead settlement point prices. Hourly history, battery spreads and real-time prices are on the map.
Data centers and large loads
5 announced data center campuses in Collin County, 1 at or above ERCOT's 75 MW large load threshold.
- Prosper data center faces opposition after 7-0 commission vote NBC 5 DFW 2026-09-02
- City has not received data center plans Princeton Herald 2026-08-20
- Prosper commission recommends denial of $580M data center Community Impact 2026-08-20
- Princeton Council Highlights: data center regulations approved August 10, 2026 City of Princeton 2026-08-11
- Planning and zoning commission approves new data center in west Plano Community Impact 2025-07-24
Jurisdiction
Nearest city to the county center: McKinney (0 mi). Outside city limits and ETJ, development falls under county rules and state law. City limits and estimated ETJ are on the map.
Nearby counties
See Collin County on the map
Every substation, line, queue project, pipeline and price node in Texas, plus Dub, an AI landman who answers questions about any spot. Free account, no card.
Sources: HIFLD and OpenStreetMap substations and lines, ERCOT GIS report (queue, 2026-09), ERCOT day-ahead prices, TxDOT and StratMap boundaries, Barrio Energy research. Updated 2026-11-09. Screening data only; the serving utility confirms capacity.