Castro County, Texas: power grid and siting data
Deaf Smith Electric Coop owns most of the substations near the county center. It has 10 mapped substations, owned mostly by Deaf Smith Electric Coop, SPS (non-ERCOT) and Oncor; the highest voltage is 345 kV. The ERCOT queue lists 5 generation projects (4 solar and 1 wind) and 2 battery storage projects here.
Substations in Castro County
2 at 345 kV, 1 at 138 kV, 6 at 115 kV, 1 at 69 kV and below.
| Substation | Voltage | Owner | Lines | |
|---|---|---|---|---|
| Ogallala | 345 kV | Oncor | 5 | map |
| Unnamed station | 345 kV | Dimmitt Corn Mill Llc | 2 | map |
| Unnamed station | 138 kV | Deaf Smith Electric Coop | 1 | map |
| Castro County | 115 kV | SPS (non-ERCOT) | 5 | map |
| Tap302494 | 115 kV | Bailey Co Electric Coop | 3 | map |
| Tap308103 | 115 kV | Sides George H | 3 | map |
| Unnamed station | 115 kV | not recorded | 3 | map |
| Unnamed station | 115 kV | Deaf Smith Electric Coop | 1 | map |
| Unnamed station | 115 kV | SPS (non-ERCOT) | 0 | map |
| Unnamed station | 69 kV | Deaf Smith Electric Coop | 1 | map |
ERCOT interconnection queue
5 generation projects are queued in Castro County: 4 solar and 1 wind. By stage: 2 with a signed interconnection agreement and 3 in full interconnection study. 2 battery storage projects are queued, 1 with a signed interconnection agreement.
From the ERCOT GIS report. Project names, developers, MW and dates are on Pro.
Planned transmission
No planned substations, lines or upgrades are recorded in Castro County.
Wholesale power prices
No price data.
ERCOT day-ahead settlement point prices. Hourly history, battery spreads and real-time prices are on the map.
Jurisdiction
Nearest city to the county center: Dimmitt (2.2 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 Castro 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.