Aberdeen / South Dakota / United States
NorthWestern Energy is one of the largest providers of electricity and natural gas in the upper Midwest and Northwest. The company serves approximately 656,000 customers in Montana, South Dakota and Nebraska. Its utility operation comprises regulated electric and natural gas distribution, transmission and energy supply. In 2007, NorthWestern Energy received the Emergency Recovery Award from the Edison Electric Institute (EEI). The companys utility operations are subject to various federal, state and local laws and regulations.
