Dallas County, Texas: power grid and siting data
Dallas County is in ERCOT's NORTH load zone. It has 255 mapped substations, owned mostly by Oncor, Texas Utilities Elec Co and Garland Power & Light; the highest voltage is 345 kV. The ERCOT queue lists 1 generation project (1 other) and 8 battery storage projects here.
Substations in Dallas County
20 at 345 kV, 221 at 138 kV, 4 at 115 kV, 10 at 69 kV and below. The 30 highest-voltage stations are listed; the map shows all 255.
| Substation | Voltage | Owner | Lines | |
|---|---|---|---|---|
| Watermill | 345 kV | Texas Utilities Elec Co | 13 | map |
| Cedar Hill Sw | 345 kV | Oncor | 12 | map |
| Northwest Carrollton | 345 kV | Oncor | 12 | map |
| Liggett | 345 kV | Texas Utilities Elec Co | 12 | map |
| Ben Davis | 345 kV | Garland Power & Light | 10 | map |
| Norwood | 345 kV | Oncor | 9 | map |
| Centerville Sw | 345 kV | Oncor | 9 | map |
| West Levee | 345 kV | Oncor | 9 | map |
| Sargent Road | 345 kV | Oncor | 8 | map |
| Tri-Corner | 345 kV | Texas Utilities Elec Co | 6 | map |
| Unnamed station | 345 kV | Oncor | 5 | map |
| Seagoville Sw | 345 kV | Texas Utilities Elec Co | 5 | map |
| Desoto Sw | 345 kV | Texas Utilities Elec Co | 5 | map |
| Mccree | 345 kV | Garland Power & Light | 5 | map |
| Unnamed station | 345 kV | Texas Utilities Elec Co | 4 | map |
| Unnamed station | 345 kV | Oncor | 2 | map |
| Coppell Switching Station | 345 kV | Oncor | 2 | map |
| Unnamed station | 345 kV | Dallas City Of | 0 | map |
| Unnamed station | 345 kV | Texas Utilities Elec Co | 0 | map |
| Unnamed station | 345 kV | Dallas City Of | 0 | map |
| Lake Hubbard Ses | 138 kV | Texas Utilities Elec Co | 15 | map |
| Parkdale Ses | 138 kV | Oncor | 15 | map |
| East Levee | 138 kV | Oncor | 12 | map |
| Mountain Creek Ses | 138 kV | Extex Laporte Lp | 10 | map |
| Lake Hubbard | 138 kV | Texas Utilities Elec Co | 9 | map |
| Unnamed station | 138 kV | Texas Utilities Elec Co | 8 | map |
| Centerville Rd | 138 kV | Oncor | 8 | map |
| Cedar Crest Sw | 138 kV | Oncor | 8 | map |
| Prairie Creek Sw | 138 kV | Oncor | 7 | map |
| Norwood Sw | 138 kV | Texas Utilities Elec Co | 6 | map |
ERCOT interconnection queue
1 generation project is queued in Dallas County: 1 other. By stage: 1 in full interconnection study. 8 battery storage projects are queued, 0 with a signed interconnection agreement.
From the ERCOT GIS report. Project names, developers, MW and dates are on Pro.
Planned transmission
21 planned grid projects touch Dallas County: 4 new substations, 10 new or rebuilt lines and 7 substation upgrades, 15 at 345 kV or above; 1 already energized.
Wholesale power prices
The NORTH load zone averaged $39.98/MWh day-ahead over the last 7 days. Nearest generator pricing nodes: MISAE_GEN_RN $35.55, MESQUITE_RN $46.52 and LIGSW_RN $39.69.
ERCOT day-ahead settlement point prices. Hourly history, battery spreads and real-time prices are on the map.
Data centers and large loads
33 announced data center campuses in Dallas County, 9 at or above ERCOT's 75 MW large load threshold.
- New data center campus gets the thumbs up in Irving KERA News 2026-02-13
- Equinix files to develop another data center campus in Dallas Data Center Dynamics 2026-02-01
- Large data center campus proposed in Lancaster area of Dallas, Texas Data Center Dynamics 2025-08-20
- Yondr Group accelerates US growth with 550MW Dallas campus PR Newswire 2025-08-19
- Digital Realty files to expand planned data center campus in Garland, Texas Data Center Dynamics 2025-03-05
Jurisdiction
Nearest city to the county center: Dallas (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 Dallas 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.