Castell Substation - Texas Electrical Substation Operated by Central Texas Electric Cooperative

Castell Substation is an operational electrical substation located in Texas, United States. Owned by Central Texas Electric Cooperative, this facility plays a key role in the regional electrical infrastructure, stepping down transmission voltage for local distribution. The substation operates at two voltage levels: 138 kV for transmission and 12.5 kV for distribution, typical of a medium-voltage substation serving rural and semi-rural areas. As part of the U.S. grid, it falls under NERC reliability standards and FERC regulation for transmission-level assets, ensuring grid stability and compliance. Located in central Texas, the substation supports the local community by providing reliable electricity to residential, agricultural, and commercial customers. Its operational status and integration with the cooperative's network underscore its importance in maintaining power supply in the region.

The substation is situated in a rural area of central Texas, characterized by open landscapes and agricultural activity. Its voltage levels and location suggest it serves as a critical node for distributing power to dispersed communities. The facility's design and operation must consider local environmental factors such as weather extremes and wildlife, typical for substations in this region.