Overview
Hilltop 230/115KV Substation is an operational electrical substation in Minnesota, United States, owned and operated by Minnesota Power. It handles high-voltage transmission at 230 kV and 115 kV.
Hilltop 230/115KV Substation is an operational electrical substation located in Minnesota, United States. Owned and operated by Minnesota Power, the facility plays a key role in the regional high-voltage transmission network, stepping down voltage from 230 kV to 115 kV for distribution to local communities and industries. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), ensuring grid reliability and compliance with mandatory standards. As a transmission-level asset, it is critical for maintaining voltage stability and power flow in the Upper Midwest region. The facility's location in Minnesota places it within a region with significant renewable energy integration, including wind and hydroelectric power. The substation supports grid resilience and facilitates the efficient transmission of electricity across the state, contributing to the reliability of the regional power supply.
Environmental context
The substation is situated in a region with cold winters and variable renewable energy generation. Its voltage level and role in the transmission grid make it a key node for integrating wind power from the Great Plains. The facility's design and operation consider environmental factors such as electromagnetic fields and land use, with typical mitigation measures including buffer zones and adherence to state environmental regulations.
Frequently asked questions
Hilltop 230/115KV Substation is located in Minnesota, United States, at coordinates 46.751081, -92.199545.
The substation operates at 230 kV and 115 kV, serving as a step-down transmission facility.
The substation is owned and operated by Minnesota Power, a utility serving northeastern Minnesota.
As part of the US transmission grid, the substation must comply with NERC reliability standards and FERC regulations for voltage stability and grid security.
The substation facilitates the transmission of electricity from higher voltage lines to lower voltage distribution networks, supporting regional power delivery and grid reliability.