Smith County, Texas: power grid and siting data
Smith County is in ERCOT's NORTH load zone. It has 27 mapped substations, owned mostly by Oncor, Wood County Electric Coop and Cherokee County Elec Coop Association; the highest voltage is 345 kV. The ERCOT queue lists 0 generation projects and 1 battery storage project here.
Substations in Smith County
7 at 345 kV, 9 at 138 kV, 11 at 69 kV and below.
| Substation | Voltage | Owner | Lines | |
|---|---|---|---|---|
| Tyler | 345 kV | Oncor | 8 | map |
| Unnamed station | 345 kV | Oncor | 7 | map |
| Shamburger | 345 kV | Oncor | 5 | map |
| Unnamed station | 345 kV | Cherokee County Elec Coop Association | 1 | map |
| Unnamed station | 345 kV | Oncor | 1 | map |
| Unnamed station | 345 kV | Cherokee County Electric Cooperative | 1 | map |
| Unnamed station | 345 kV | Oncor | 0 | map |
| Tap302445 | 138 kV | Ramirez Fidencio & Evarista Rubio Ramirez | 3 | map |
| Tap302542 | 138 kV | Hill Jimmy R | 3 | map |
| Unnamed station | 138 kV | Oncor | 3 | map |
| Unnamed station | 138 kV | Wood County Electric Coop | 2 | map |
| Unnamed station | 138 kV | Oncor | 2 | map |
| Unnamed station | 138 kV | Wood County Electric Co Op | 2 | map |
| Unnamed station | 138 kV | Oncor | 2 | map |
| Unnamed station | 138 kV | Oncor | 1 | map |
| Unnamed station | 138 kV | Oncor | 1 | map |
| Unnamed station | 69 kV | Oncor | 4 | map |
| Unnamed station | 69 kV | Oncor | 3 | map |
| Tap302473 | 69 kV | Dubose Natalie Kaye Wells | 3 | map |
| Unnamed station | 69 kV | Oncor | 3 | map |
| Tap307876 | 69 kV | Mancilla Jason | 3 | map |
| Unnamed station | 69 kV | Oncor | 2 | map |
| Unnamed station | 69 kV | Cherokee County Electric Coop | 1 | map |
| Unnamed station | 69 kV | Oncor | 1 | map |
| Unnamed station | 69 kV | Ransom Industries Inc | 1 | map |
| Unnamed station | 69 kV | Wood County Electric Coop | 1 | map |
| Unnamed station | 69 kV | Cherokee County Elect Coop | 1 | map |
ERCOT interconnection queue
No generation projects are queued in Smith County. 1 battery storage project is queued, 0 with a signed interconnection agreement.
From the ERCOT GIS report. Project names, developers, MW and dates are on Pro.
Planned transmission
9 planned grid projects touch Smith County: 2 new substations, 4 new or rebuilt lines and 3 substation upgrades, 8 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: MLSES_UNIT1 $34.66, DRCK_SLR_RN $34.44 and TANZ_ESS_RN $35.13.
ERCOT day-ahead settlement point prices. Hourly history, battery spreads and real-time prices are on the map.
Data centers and large loads
1 announced data center campus in Smith County.
- Barrio Energy Tyler Data Center (West Erwin Street), Tyler Sue Data Centers 2026-09-03
- Proposed Tyler data center faces major setback, but legal battle continues KLTV 2026-09-03
- Tyler Zoning Board of Adjustment holds public hearing on Barrio Energy appeal for West Erwin Street data center Tyler Morning Telegraph 2026-08-28
- East Texans protest data centers at Smith County Courthouse KETK 2026-07-18
- Tyler Planning and Zoning Commission denies special use permit for proposed data center Tyler Morning Telegraph 2026-07-08
Jurisdiction
Nearest city to the county center: Tyler (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 Smith 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.