Overview
Anna Substation is an operational electrical substation in Texas, United States, owned and operated by Oncor. It handles voltages of 345 kV and 138 kV, serving as a key node in the regional transmission grid.
Anna Substation is an operational electrical substation located in Texas, United States, owned and operated by Oncor. The facility handles transmission voltages of 345 kV and 138 kV, placing it in the high-voltage category critical for bulk power transfer and grid stability. As part of Oncor's extensive network, it supports electricity distribution across North Texas. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which enforce reliability standards for transmission-level assets. The dual-voltage configuration (345 kV and 138 kV) indicates its role in stepping down power from extra-high-voltage transmission lines to sub-transmission levels, typical for substations serving urban and suburban load centers. Anna Substation's location in a growing region of Texas underscores its importance in meeting increasing electricity demand. Its operational status and integration into Oncor's grid contribute to the resilience of the local power supply, supporting residential, commercial, and industrial customers. The facility's age and specific equipment details are not disclosed, but its voltage class suggests it is a significant asset for regional grid reliability.
Environmental context
The substation is situated in a semi-urban area of Texas, where land use is a mix of residential and agricultural. High-voltage substations like this one are typically designed with oil-filled equipment that requires spill containment measures to protect local soil and water. The facility's proximity to populated areas necessitates adherence to electromagnetic field guidelines and noise ordinances. Oncor, as the operator, follows environmental management practices aligned with state and federal regulations to minimize ecological impact.
Frequently asked questions
Anna Substation is located in Texas, United States, at coordinates 33.317980, -96.639255. It is owned and operated by Oncor, a major electric transmission and distribution utility in Texas.
Anna Substation handles two voltage levels: 345 kV and 138 kV. The 345 kV level is used for bulk power transmission, while 138 kV is typically for sub-transmission to local distribution networks.
Anna Substation is operated by Oncor, the largest electric transmission and distribution company in Texas. Oncor manages over 140,000 miles of transmission and distribution lines.
As a transmission-level substation in the United States, Anna Substation must comply with NERC reliability standards and FERC regulations. These include requirements for grid stability, cybersecurity, and equipment maintenance.
A 345 kV substation serves as a critical node in the high-voltage transmission grid, stepping down extra-high voltage from long-distance lines to lower voltages for regional distribution. It also provides switching and protection functions to ensure reliable power flow.