McLennan County, Texas: power grid and siting data
McLennan County is in ERCOT's NORTH load zone. It has 45 mapped substations, owned mostly by Oncor, Brazos and Txu Electric Company; the highest voltage is 345 kV. The ERCOT queue lists 10 generation projects (5 solar, 3 gas and 2 wind) and 8 battery storage projects here.
Substations in McLennan County
9 at 345 kV, 23 at 138 kV, 13 at 69 kV and below. The 30 highest-voltage stations are listed; the map shows all 45.
| Substation | Voltage | Owner | Lines | |
|---|---|---|---|---|
| Lake Creek | 345 kV | Oncor | 8 | map |
| Tradinghouse | 345 kV | Txu Electric Company | 6 | map |
| Rattlesnake Road | 345 kV | not recorded | 6 | map |
| Unnamed station | 345 kV | Brazos | 3 | map |
| Elm Mott 345 | 345 kV | Oncor | 2 | map |
| Mcgregor | 345 kV | Brazos | 2 | map |
| Waco Northwest | 345 kV | Oncor | 2 | map |
| Crawford | 345 kV | Brazos | 0 | map |
| Rogers Hill | 345 kV | Brazos | 0 | map |
| Waco North | 138 kV | Oncor | 4 | map |
| Waco Atco | 138 kV | Oncor | 4 | map |
| Waco West | 138 kV | Oncor | 4 | map |
| Unnamed station | 138 kV | Doshier Larry & Laura | 3 | map |
| Tap305427 | 138 kV | Mcclellan James Edward Iii & Dorothy | 3 | map |
| Waco East | 138 kV | Oncor | 3 | map |
| Waco M&M Mars 1 | 138 kV | Oncor | 3 | map |
| Bellmead | 138 kV | Oncor | 3 | map |
| Lorena | 138 kV | Brazos | 2 | map |
| Waco South | 138 kV | Oncor | 2 | map |
| Eddy | 138 kV | Oncor | 2 | map |
| Waco Sanger Avenue | 138 kV | Oncor | 2 | map |
| Mcgregor Hercules | 138 kV | Oncor | 1 | map |
| Robinson Northwest | 138 kV | Oncor | 1 | map |
| Spring Valley | 138 kV | Brazos | 1 | map |
| China Spring | 138 kV | Oncor | 1 | map |
| Baylor | 138 kV | Baylor University | 1 | map |
| Waco Katy | 138 kV | Oncor | 1 | map |
| Cotton Belt | 138 kV | Brazos | 1 | map |
| Unnamed station | 138 kV | TNMP | 1 | map |
| Waco M&M Mars 2 | 138 kV | Oncor | 1 | map |
ERCOT interconnection queue
10 generation projects are queued in McLennan County: 5 solar, 3 gas and 2 wind. By stage: 6 with a signed interconnection agreement and 4 in full interconnection study. 8 battery storage projects are queued, 3 with a signed interconnection agreement.
From the ERCOT GIS report. Project names, developers, MW and dates are on Pro.
Planned transmission
4 planned grid projects touch McLennan County: 1 new substation, 2 new or rebuilt lines and 1 substation upgrade, 3 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: ASCK_SLR_RN $38.40, ROSELAND_ALL $38.00 and MRKM_SLR_RN $42.56.
ERCOT day-ahead settlement point prices. Hourly history, battery spreads and real-time prices are on the map.
Data centers and large loads
4 announced data center campuses in McLennan County, 2 at or above ERCOT's 75 MW large load threshold.
- "We Can't Drink Data": Taylor Annexes a Gas-Fired Campus, and the PUC Sues to Keep the Counties Secret The Grid Report 2026-10-09
- McLennan County landowners seek ag district to block data centers, commissioners deny petition KWTX 2026-08-04
- McLennan County denies petition to create agricultural development district KXXV 2026-08-04
- McGregor City Council approves new data center plans KWTX 2026-06-24
- Second Waco-area data center proposal troubles residents The Waco Bridge 2026-05-27
Jurisdiction
Nearest city to the county center: Waco (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 McLennan 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.