The Rolling Hills Wind Farm may be one of two
wind farm
A wind farm, also called a wind park or wind power plant, is a group of wind turbines in the same location used to produce electricity. Wind farms vary in size from a small number of turbines to several hundred wind turbines covering an exten ...
s, one in
Wyoming
Wyoming ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States, Western United States. It borders Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho t ...
, the other in
Iowa
Iowa ( ) is a U.S. state, state in the upper Midwestern United States, Midwestern region of the United States. It borders the Mississippi River to the east and the Missouri River and Big Sioux River to the west; Wisconsin to the northeast, Ill ...
.
The Wyoming Rolling Hills Wind farm is located near
Glenrock in
Converse county and has 66 turbines with a total nameplate capacity of 99 megawatts. It is built on a former
coal strip mine, and is owned by
PacifiCorp
PacifiCorp is an electric power company based in the Lloyd Center Tower in Portland, Oregon with operations in the western United States.
PacifiCorp has two business units: Pacific Power, a regulated electric utility with service territory thro ...
, a subsidiary of MidAmerican Energy Holdings.
The Iowa wind farm is near
Massena, Iowa
Massena is a city in Cass County, Iowa, United States. The population was 359 at the time of the 2020 census. Massena's motto is: "The Home of Friendly People". Massena's sister community is Cumberland, Iowa. Massena is named after Massena, Ne ...
(). It has a nameplate capacity of 443.9
megawatts
The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named in honor o ...
of power and was completed in December 2011. The project was built for
MidAmerican Energy Company
MidAmerican Energy Company is an energy company based in Des Moines, Iowa. Its service area includes almost two-thirds of Iowa, as well as portions of Illinois, South Dakota, and Nebraska. Its territory is wholly encompassed by the territory of ...
, a Des Moines, Iowa-based company and subsidiary of MidAmerican Energy Holdings. With 193
Siemens
Siemens AG ( ) is a German multinational technology conglomerate. It is focused on industrial automation, building automation, rail transport and health technology. Siemens is the largest engineering company in Europe, and holds the positi ...
2.3 MW
wind turbines
A wind turbine is a device that converts the kinetic energy of wind into electrical energy. , hundreds of thousands of large turbines, in installations known as wind farms, were generating over 650 gigawatts of power, with 60 GW added each y ...
, it was the largest wind farm in Iowa when built.
See also
*
Wind power in Iowa
*
Wind power in Wyoming
*
Wind power in the United States
Wind power is a branch of the energy industry that has expanded quickly in the United States over the last several years. In 2024, 453.5 terawatt-hours were generated by wind power, or 10.54% of electricity in the United States. The average wi ...
References
External links
Map of turbine locations (Iowa)
{{Wind power in the United States
Energy infrastructure completed in 2011
Wind farms in Wyoming
Wind farms in Iowa