Limestone Switching Station: 69 kV Substation in the United States

Limestone Switching Station is an operational electrical substation located in the United States, with coordinates 46.928962, -67.830704. The facility operates at a voltage of 69 kV, classifying it as a medium-voltage substation within the electrical infrastructure sector. Substations at this voltage level typically serve as distribution hubs, stepping down power from transmission lines to local networks. In the United States, substations like Limestone Switching Station operate under regulatory frameworks established by the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC). These standards ensure grid reliability and security, with requirements for maintenance, protection systems, and operational protocols. The 69 kV voltage level is common for sub-transmission or distribution applications, often connecting to industrial or large commercial loads. The environmental context of this substation includes its location in a rural or semi-rural area of Maine, near the Canadian border. The facility's operation supports local electricity distribution, contributing to the resilience of the regional grid. Its presence is significant for maintaining power supply to nearby communities and industries, particularly in a region with variable weather conditions that can impact grid stability.

The substation is located in a rural area of Maine, characterized by forests and agricultural land. Its operation at 69 kV indicates a role in local distribution rather than high-voltage transmission. Typical substations in this region are subject to seasonal weather extremes, including snow and ice, which can affect reliability. The site's proximity to the Canadian border may also involve cross-border grid coordination.