Repowering Wyoming’s Wind Fleet

As part of Energy Vision 2020, Rocky Mountain Power plans to upgrade its existing wind fleet (turbines) with larger blades, better control systems, and other newer technology. The $1 billion in systemwide upgrades are planned to be complete by the end of 2020. The company submitted its requests for regulatory review on June 30, 2017.

The upgraded turbines will continue to use existing towers and foundations, and all upgrades will be completed within existing project footprints.

Benefits of the turbine upgrades include:

  • Increasing energy production of the wind projects by 11 to 35 percent
  • Extending the life of the projects by 10 years
  • Providing improved power quality and voltage support to increase the reliability of the transmission system

In addition, completing the turbine upgrades by 2020 will requalify the wind projects for federal production tax credits for another 10 years. These credits will pay for the cost of the upgrades and also provide net savings for customers

The $1 billion in systemwide upgrades are planned to be complete by the end of 2020. The company submitted its requests for regulatory review on June 30, 2017.

How will repowering wind turbines benefit Wyoming?

These investments in repowering (approximately $700 million in Wyoming) will help diversify the state’s economy, create jobs and add to the tax base.

We also expect these projects to:

  • Create more than 150 construction jobs in Wyoming
  • Add about $40 million in tax revenue through construction and approximately $2 million in additional annual property tax revenue, starting in 2021