Brookings – Split Rock Line is a 500kV overhead line with a length of 152.88km from Brookings County, South Dakota, US, to Split Rock Township, Minnesota, US.

The project, which is currently in the planning stage, is expected to be commissioned in 2021.


Brookings – Split Rock Line is an overhead line that will be operated by Missouri River Energy Services. The line will carry alternating current (AC) through double circuit cable.

Brookings – Split Rock Line project development status

The construction works on the Brookings – Split Rock Line project commissioning is expected in 2021.

About Missouri River Energy Services

Missouri River Energy Services (MRES) is an electric utility that owns and operates electric distribution systems. The utility generates, transmits and distributes electricity. Its services include coordinated demand response, advanced metering infrastructure, energy efficiency, distribution maintenance, energy conservation, retail rate studies, proactive maintenance, rebates and incentives; energy audits and electrical safety. MRES’ proactive maintenance services comprise digital infrared services, ultrasonic inspection, motor testing and oil sampling services.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.