Overview
Rockawalkin Substation is an operational electrical substation in Maryland, United States, operated by Delmarva Power. It handles voltages of 69 kV and 12.47 kV, serving the local grid.
Rockawalkin Substation is an operational electrical substation located in Maryland, United States. Owned and operated by Delmarva Power, it plays a key role in the regional electrical infrastructure by stepping down transmission voltages for local distribution. The facility is part of the broader Delmarva Peninsula grid, which serves residential, commercial, and industrial customers in Delaware, Maryland, and Virginia. The substation operates at two voltage levels: 69,000 volts (69 kV) for subtransmission and 12,470 volts (12.47 kV) for primary distribution. This configuration is typical for a medium-voltage substation that connects the high-voltage transmission network to local distribution feeders. As part of the PJM Interconnection, the facility adheres to North American Electric Reliability Corporation (NERC) reliability standards and is subject to Federal Energy Regulatory Commission (FERC) regulation for transmission-level assets. Rockawalkin Substation contributes to grid stability and reliability in the region, supporting the integration of renewable energy sources and meeting growing electricity demand. Its location in a rural area of Maryland underscores its role in extending reliable power to underserved communities. The substation's operational status ensures continued service for local residents and businesses, reinforcing the resilience of the regional electrical infrastructure.
Environmental context
The substation is situated in a rural area of Maryland, where the surrounding landscape includes agricultural fields and woodlands. Electrical infrastructure in such settings must balance reliability with environmental stewardship, often incorporating measures to minimize visual impact and protect local wildlife. The facility's operation supports the regional grid's ability to integrate renewable energy, such as solar and wind, which are increasingly deployed in the Delmarva region.
Frequently asked questions
Rockawalkin Substation is located in Maryland, United States, near the coordinates 38.402952, -75.662379. It serves the Delmarva Peninsula region.
Rockawalkin Substation operates at 69 kV (subtransmission) and 12.47 kV (primary distribution), typical for a medium-voltage substation.
Rockawalkin Substation is owned and operated by Delmarva Power, a utility company serving Delaware, Maryland, and Virginia.
As part of the PJM Interconnection, Rockawalkin Substation must comply with NERC reliability standards and FERC regulations for transmission-level assets.
Substations like Rockawalkin step down high transmission voltages to lower distribution voltages, enabling safe delivery of electricity to homes and businesses. They also provide switching and protection functions to maintain grid stability.