Category Archives: Transmission

Major construction to commence on premiere transmission system

One of the most critical, best-performing features of Great River Energy’s electric system will become even more reliable this summer after the cooperative upgrades its unique high-voltage, direct-current (HVDC) transmission system with today’s technology. Great River Energy’s HVDC system works like a 436-mile extension cord that delivers power directly from the cooperative’s largest power plant […]

Extra-long semi load rolls into Riverview Substation project

A large 333 megavolt-ampere transformer weighing in at 366,000 pounds traveled by rail car from Montgomery, Ala., to St. Cloud, Minn., where it was loaded on a football-field-length truck last week. This massive truck and trailer traveled another 35 miles during late night hours along backroads from St. Cloud to Freeport where it was safely […]

A vision realized

Utilities invested 12 years and $1.85 billion to fortify the Midwest electric grid and enable renewable development A 2004 hallway conversation between Minnesota’s two largest utilities spurred a 12-year effort to  update and expand the region’s electric grid. With the late-September completion of a 345-kilovolt transmission line between Hampton, Minn., and La Crosse, Wis., the […]