Overview
Harriman Substation is an operational electrical substation in the United States, owned and operated by National Grid. It operates at a voltage of 69 kV, serving the regional power grid.
Harriman Substation is an operational electrical substation located in the United States, owned and operated by National Grid. As a 69 kV substation, it is part of the medium-voltage transmission infrastructure that supports the distribution of electricity to local communities and industries. 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 and oversee the bulk power system. National Grid, a major utility in the Northeast, manages this facility as part of its transmission network, ensuring grid stability and compliance with NERC's Critical Infrastructure Protection (CIP) standards. Harriman Substation plays a key role in the regional electrical infrastructure, facilitating the step-down of high-voltage power for distribution. Its location in the northeastern United States places it within a densely populated and industrially active area, where reliable electricity supply is critical for residential, commercial, and industrial consumers.
Environmental context
The substation is situated in a region characterized by a mix of rural and suburban landscapes, with proximity to the Green Mountains and the Connecticut River Valley. The environmental context includes considerations for electromagnetic fields (EMF) and potential impacts on local wildlife, though modern substations are designed to minimize such effects. The facility's operation aligns with state and federal environmental regulations, including those related to noise, oil containment, and land use.
Frequently asked questions
Harriman Substation is located in the United States, with coordinates approximately 42.757351, -72.928725. It is part of National Grid's transmission network in the northeastern region.
Harriman Substation operates at a voltage of 69 kV, which is a medium-voltage level commonly used for subtransmission and distribution in the United States.
Harriman Substation is owned and operated by National Grid, a major utility company serving the northeastern United States.
Substations in the United States must comply with NERC reliability standards, including CIP for cybersecurity, and FERC regulations for transmission infrastructure. They also follow IEEE and ANSI standards for equipment and safety.
A 69 kV substation typically steps down transmission-level voltage for distribution to local networks, serving industrial, commercial, and residential customers. It also provides switching and protection functions to maintain grid reliability.