Overview
Theiss Substation is an operational electrical substation in Ohio, United States, operated by Ohio Edison and City of Cuyahoga Falls Municipal Electric. It operates at 138 kV, supporting regional grid stability.
Theiss Substation is an operational electrical substation located in Ohio, United States. It is jointly operated by Ohio Edison and the City of Cuyahoga Falls Municipal Electric, serving as a key node in the local transmission network. The facility operates at a voltage of 138 kV, classifying it as a medium-to-high voltage substation typical of regional distribution and sub-transmission systems. 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 bulk power systems. As part of the PJM Interconnection, the facility adheres to mandatory reliability standards, including NERC's Critical Infrastructure Protection (CIP) requirements. The 138 kV voltage level is common for sub-transmission networks that connect distribution substations to higher-voltage transmission lines. Environmentally, the substation plays a critical role in maintaining grid stability for the surrounding urban and suburban areas of Cuyahoga Falls and Akron. Its operation supports the integration of distributed energy resources and ensures reliable electricity supply to residential, commercial, and industrial customers. The facility's location in a densely populated region underscores its importance for community resilience and energy security.
Environmental context
Theiss Substation is situated in an urbanized area of Ohio, where electrical infrastructure is critical for supporting dense residential and commercial loads. The 138 kV voltage level indicates its role in sub-transmission, balancing local distribution needs with regional grid stability. The facility's operation is subject to NERC environmental compliance standards, including vegetation management and oil containment for transformers, to minimize ecological impact in a developed landscape.
Frequently asked questions
Theiss Substation is located in Ohio, United States, near the city of Cuyahoga Falls. Its coordinates are approximately 41.148954 N, -81.547832 W.
Theiss Substation operates at a voltage of 138 kV, which is typical for sub-transmission substations that connect higher-voltage transmission lines to local distribution networks.
Theiss Substation is jointly operated by Ohio Edison, a subsidiary of FirstEnergy, and the City of Cuyahoga Falls Municipal Electric utility.
As part of the U.S. bulk power system, Theiss Substation must comply with NERC reliability standards and FERC regulations, including Critical Infrastructure Protection (CIP) standards for cybersecurity and physical security.
A 138 kV substation typically serves as a sub-transmission node, stepping down voltage from higher transmission levels (e.g., 345 kV) for distribution to local networks, or stepping up from lower voltages. It helps maintain grid stability and reliability for industrial, commercial, and residential customers.