Site & Grid Context

4/4 Identifiers Resolved — Pass
Criteria: Resolve 4 site & grid identifiers: serving retail utility, ISO/RTO, PUC, and county. Pass = all 4 resolved.
Source: US Substations ยท 2026-05-16
Assessment
✓ Pass 4/4 Resolved
All grid context identifiers successfully resolved
Transmission / Distribution Utility (TDU)
CenterPoint Energy Houston Electric
TDU (wires owner) · ERCOT deregulated market
ISO / RTO
ERCOT Deregulated
Electric Reliability Council of Texas
Public Utility Commission
PUCT
Public Utility Commission of Texas
County
Brazoria County, TX
Site location county
Nearest Substation
CANEY 3.73 mi
138 kV · Matagorda County, TX

Summary

Overlapping Electric Service Territories

Utility Name Type Planning Area
CenterPoint Energy Houston Electric INVESTOR OWNED (TDU) ERCOT

Resolved Identifiers

Identifier Value Source Status
TDU (Transmission/Distribution Utility) CenterPoint Energy Houston Electric HIFLD Electric Service Territories Resolved
ISO / RTO ERCOT HIFLD FERC ISO/RTO Regions Resolved
Public Utility Commission PUCT State lookup (TX) Resolved
County Brazoria County, TX Site location / TIGER Resolved

Analysis

The the site is located in Brazoria County, TX, within the ERCOT interconnection. CenterPoint Energy Houston Electric is the Transmission and Distribution Utility (TDU) serving this area. In the ERCOT deregulated market, the TDU owns the wires infrastructure while customers choose their Retail Electric Provider (REP). Multiple overlapping HIFLD service territories were identified (AEP Texas Central, Texas-New Mexico Power Co, Jackson Electric Coop, Wharton County Electric Coop), all operating within the ERCOT planning area.

The nearest substation is CANEY (138 kV), located 3.73 miles from the site centroid in Matagorda County. The site falls under the jurisdiction of the Public Utility Commission of Texas (PUCT), the state regulatory body for electric utilities in the deregulated ERCOT market.

All four grid context identifiers have been successfully resolved, confirming the site's position within a well-defined regulatory and grid infrastructure framework. The ERCOT market structure provides competitive wholesale electricity pricing and a streamlined interconnection process compared to vertically integrated service territories.

Next Steps

Sources