The Laramie River Station, located east of Wheatland, WY, is one of the largest consumer-operated, regional, joint power supply ventures in the United States. The Missouri Basin Power Project (MBPP), a group of six electric utilities, owns the plant and adjacent facilities. Laramie River Station has three coal-based units, each with 550 megawatts of capacity. Units 1, 2 and 3 began operating in 1980, 1981 and 1982, respectively.
The electricity produced at Laramie River is sent to substations in Wyoming, Nebraska and Colorado, where it is then delivered to MBPP Participants. Laramie River is unique because it delivers electricity to two separate electrical transmission grids. Unit 1 is connected to the eastern grid, while units 2 and 3 are connected to the western grid. These grids, which divide the United States into two sections, were developed independently and must be served separately.