TAP308029
SubstationTexas · AEP TEXAS CENTRAL CO.
At a glance
TAP308029 is an electric transmission substation in Texas, on AEP TEXAS CENTRAL CO.'s transmission network. It is classified as sub-transmission (138 kv) and connects 3 transmission lines. Substation proximity is one of the strongest speed-to-power signals for siting a datacenter — interconnection distance to an energized, high-voltage bus is often the binding constraint on time-to-energization.
Voltage & classification
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #303263 | 138 kV | AEP TEXAS CENTRAL CO. | — | 0.5 mi |
| #305984 | 138 kV | AEP TEXAS CENTRAL CO. | — | 1.9 mi |
| #306951 | 138 kV | AEP TEXAS CENTRAL CO. | — | 0.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP308029, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| FAYETTE PLANT #1 | Substation-Adjacent | TX | Fayette County | 345 kV | 600 MW | 3.5 yrs | 64.0 |
| FAYETTEVILLE | Substation-Adjacent | TX | Fayette County | 345 kV | 600 MW | 3.5 yrs | 63.8 |
| EC Near Newgulf Cogen | Greenfield | TX | Wharton | — | — | 3.5 yrs | 60.6 |
| WALLIS | Substation-Adjacent | TX | Fort Bend County | 138 kV | 100 MW | 3.5 yrs | 60.5 |
| EC FFE Wharton County | Greenfield | TX | Wharton County | — | — | 3.5 yrs | 60.3 |
| EAST BERNARD | Substation-Adjacent | TX | Fort Bend County | 138 kV | 100 MW | 3.5 yrs | 60.1 |
| OZ Wharton | Greenfield | TX | Wharton | — | — | 3.5 yrs | 59.7 |
| EC FFE Colorado County | Greenfield | TX | Colorado County | — | — | 3.5 yrs | 59.5 |
Who owns the transmission lines at TAP308029?
The 3 connected lines listed above are owned by AEP TEXAS CENTRAL CO. Line voltages range from 138 kV to 138 kV. Their combined recorded length is about 3 miles.
How do candidate sites near TAP308029 score?
The 8 highest-scoring candidate sites within about 25 miles range from 60 to 64 on the 0–100 DC Readiness scale. They fall in Fayette County, Wharton, Fort Bend County, Wharton County. The Texas average across 6,839 scored sites is 56.4. 3,635 of those Texas sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP308029 substation?
TAP308029 has a maximum voltage of 138 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so TAP308029 is above the national midpoint.
How many transmission lines connect to TAP308029 substation?
3 transmission lines terminate at or pass through TAP308029 in the HIFLD line data. The connected lines listed here run at 138 kV. Together the listed lines cover about 3 miles.
Who owns TAP308029 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP308029 belong to AEP TEXAS CENTRAL CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP308029 substation located?
TAP308029 is in Texas at 29.5777, -96.3914. The datacenter candidate sites closest to it are in Fayette County, Wharton, Fort Bend County.
Are there datacenter candidate sites near TAP308029 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP308029. The highest-scoring is FAYETTE PLANT #1 at 64/100. Across Texas, the average DC Readiness score is 56.4.
More in Texas
About this data
Source: HIFLD Electric Substations and Transmission Lines (U.S. Department of Homeland Security), as published June 29, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “TAP308029 substation, Texas”, https://gridcensus.com/substations/texas/tap308029-69c55a31 (data as of June 29, 2026).
Dataset updated . Screening estimates derived from public data sources.
Substation attributes are derived from public HIFLD / EIA infrastructure data and may lag real-world upgrades or retirements. Voltage and connected-line counts are screening figures — confirm available capacity and interconnection terms directly with the operating utility and ISO.
Go deeper than the public screen
Every site and score for TAP308029 substation, Texas is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.