Overview
Rohr Substation is an operational electrical substation in the United States, owned and operated by Pedernales Electric Cooperative. It operates at a voltage of 138 kV, serving the local grid.
Rohr Substation is an operational electrical substation located in the United States, owned and operated by Pedernales Electric Cooperative. The facility operates at a voltage of 138 kV, placing it in the medium-voltage range typical for distribution and sub-transmission substations. As part of the Pedernales Electric Cooperative network, it supports electricity distribution to rural and suburban areas in central Texas. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which set reliability standards for the bulk power system. The 138 kV voltage level is common for sub-transmission systems that connect to lower-voltage distribution networks. Equipment such as circuit breakers, transformers, and switchgear are standard for this voltage class, with automation often following IEEE and IEC standards. Rohr Substation plays a key role in maintaining grid stability and reliability for the Pedernales Electric Cooperative service area. Its location in central Texas supports the region's growing energy demand, particularly from residential and agricultural customers. The substation's operational status ensures continued power delivery to the local community, contributing to the overall resilience of the Texas Interconnection.
Environmental context
The substation is located in central Texas, a region characterized by hot summers and occasional extreme weather events such as thunderstorms and winter storms. The 138 kV voltage level indicates a sub-transmission role, which is critical for distributing power from higher-voltage transmission lines to local distribution networks. The facility's rural setting may involve considerations for wildlife and vegetation management to maintain clearance and prevent outages. Pedernales Electric Cooperative's service area includes both urban and rural zones, requiring the substation to balance reliability with environmental stewardship.
Frequently asked questions
Rohr Substation is located in the United States, specifically in central Texas, with coordinates approximately 29.9356 N, -97.8789 W.
Rohr Substation operates at a voltage of 138 kV, which is a common sub-transmission voltage level used to distribute power from high-voltage transmission lines to local distribution networks.
Rohr Substation is owned and operated by Pedernales Electric Cooperative, a member-owned electric utility serving central Texas.
Substations in the United States must comply with NERC reliability standards and FERC regulations for grid stability. Additionally, equipment often follows IEEE and IEC standards for automation and protection.
A 138 kV substation typically serves as a sub-transmission node, stepping down voltage from higher transmission levels (e.g., 345 kV) to distribution levels (e.g., 69 kV or lower). It is critical for delivering electricity to local communities and industrial customers.