Overview
SEMASS Substation is an operational electrical substation in Massachusetts, United States, owned and operated by Eversource. It operates at 115 kV, serving as a key node in the regional transmission grid.
SEMASS Substation is an operational electrical substation located in Massachusetts, United States. Owned and operated by Eversource, a major utility in the Northeast, the facility plays a critical role in the regional power grid. Operating at 115 kV, it is classified as a high-voltage substation, typical of transmission-level infrastructure that interconnects generation sources with distribution networks. As part of the U.S. electrical infrastructure, SEMASS Substation operates under the regulatory oversight of the Federal Energy Regulatory Commission (FERC) and adheres to reliability standards set by the North American Electric Reliability Corporation (NERC). The substation likely employs modern automation systems compliant with IEC 61850 standards to ensure efficient and reliable power flow. Its voltage level indicates it serves as a stepping point between bulk transmission and local distribution. The substation's location in southeastern Massachusetts supports the region's energy needs, including residential, commercial, and industrial loads. By maintaining grid stability and enabling power transfer, SEMASS Substation contributes to the reliability of the New England power system, which is managed by ISO New England. Its role is vital for integrating renewable energy sources and ensuring resilience against weather-related disruptions.
Environmental context
The substation is situated in a region with a mix of coastal and inland environments, where electrical infrastructure must withstand coastal weather events such as nor'easters and hurricanes. The 115 kV voltage level suggests it is part of the transmission network that connects to local distribution systems, potentially serving both urban and rural areas. The facility's design likely includes measures to minimize environmental impact, such as oil containment systems for transformers and noise mitigation.
Frequently asked questions
SEMASS Substation is located in Massachusetts, United States, near coordinates 41.802953, -70.787581. It is owned and operated by Eversource.
SEMASS Substation operates at 115 kV (115,000 volts), which is a high-voltage level typical of transmission substations in the United States.
SEMASS Substation is owned and operated by Eversource, a major utility company serving customers in Connecticut, Massachusetts, and New Hampshire.
In the United States, substations like SEMASS must comply with NERC reliability standards for grid stability and FERC regulations for transmission-level assets. Additionally, IEC 61850 standards are often used for substation automation.
A 115 kV substation serves as a critical node in the transmission network, stepping down voltage from higher levels (e.g., 230 kV or 345 kV) for distribution to local areas. It helps maintain grid reliability and enables power flow management.