Overview
Park Street Substation is an operational electrical substation in Rockland, Maine, owned and operated by Central Maine Power Company. It operates at 115 kV, serving the local grid.
Park Street Substation is an operational electrical substation located in Rockland, Maine, United States. Owned and operated by Central Maine Power Company, the facility operates at a voltage of 115 kV, classifying it as a medium-voltage substation within the regional transmission and distribution network. 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 the bulk power system. As part of the New England grid, it adheres to ISO New England's planning and operational protocols. The 115 kV voltage level is typical for subtransmission systems that distribute power from higher-voltage transmission lines to local distribution networks. Park Street Substation plays a critical role in ensuring reliable electricity supply to the Rockland area and surrounding communities. Its coastal location in Maine subjects it to environmental considerations such as salt spray and winter storms, which influence maintenance and operational practices. The substation supports the region's energy needs, including residential, commercial, and industrial loads.
Environmental context
Located in coastal Maine, Park Street Substation operates in a region with cold winters and salt-laden air, which can accelerate corrosion of electrical equipment. The substation's 115 kV infrastructure is designed to withstand local weather extremes, including nor'easters and ice storms. Its urban setting in Rockland requires careful integration with surrounding land use and adherence to local environmental regulations.
Frequently asked questions
Park Street Substation is located in Rockland, Maine, United States, at coordinates 44.102214, -69.122630.
Park Street Substation operates at 115 kV, which is a medium-voltage level used for subtransmission and distribution.
Park Street Substation is owned and operated by Central Maine Power Company, a major utility in Maine.
Substations in the United States must comply with NERC reliability standards and FERC regulations, as well as regional grid operator requirements like those of ISO New England.
A 115 kV substation steps down high-voltage transmission power to lower voltages for distribution to homes and businesses, ensuring stable and reliable electricity supply.