Halliday Substation - 41.6 kV Substation in North Dakota, United States

Halliday Substation is an electrical substation located in North Dakota, United States, operated by Montana-Dakota Utilities. The facility operates at a voltage of 41.6 kV, placing it within the distribution-level voltage range typical for serving local communities and industrial customers in rural areas. As a substation under the jurisdiction of the United States, it operates within the regulatory framework of the North American Electric Reliability Corporation (NERC) reliability standards and Federal Energy Regulatory Commission (FERC) oversight for transmission-level assets, though distribution-level facilities like this one are primarily subject to state utility commission regulations. The substation's voltage level and rural location are typical for serving agricultural and small-town loads in the region. The substation plays a critical role in the local electrical infrastructure by stepping down voltage for distribution to end-users. Its operational status ensures reliable power supply to the surrounding area, contributing to the stability of the regional grid. Montana-Dakota Utilities, a regulated utility, maintains the facility to meet reliability and safety standards.

Located in a rural area of North Dakota, the substation operates in a region characterized by agricultural land use and low population density. The environmental context includes potential impacts from extreme weather events such as winter storms and high winds, which can affect overhead lines and equipment. The facility's design and maintenance practices are aligned with standard environmental mitigation measures for electrical infrastructure, including oil containment for transformers and vegetation management to prevent outages.