Stillwater 138 Substation - KAMO Power, Stillwater, Oklahoma

Stillwater 138 is an operational electrical substation located near Stillwater, Oklahoma, in the United States. Owned and operated by KAMO Power, this facility is part of the high-voltage transmission infrastructure that supports the regional electric grid. The substation's 138 kV voltage level places it in the medium-to-high voltage range, typical for sub-transmission and distribution substations that connect bulk power systems to local distribution networks. As a substation operating under the jurisdiction of the North American Electric Reliability Corporation (NERC) and subject to Federal Energy Regulatory Commission (FERC) regulations, Stillwater 138 must comply with mandatory reliability standards. These standards govern equipment maintenance, protection systems, and operational protocols to ensure grid stability. The facility likely includes switchgear, transformers, and busbars configured to manage power flow and voltage levels in the area. The substation plays a critical role in delivering electricity to the Stillwater area, supporting residential, commercial, and industrial loads. Its location in north-central Oklahoma places it within a region that experiences variable weather conditions, including thunderstorms and occasional ice storms, which can impact grid reliability. The facility's design and operational practices are aligned with industry standards to maintain continuous service and mitigate risks associated with extreme weather events.

The substation is situated in a rural-to-suburban transition zone near Stillwater, Oklahoma, an area characterized by flat to gently rolling terrain and a continental climate with hot summers and cold winters. The local environment includes agricultural land and scattered residential developments. Substations like Stillwater 138 are typically designed with minimal visual impact and include measures to contain potential oil leaks from transformers, protecting soil and groundwater. The facility's operation does not produce emissions, but its electromagnetic fields are managed within regulatory limits.