Glenrock Wind Farm represents a significant development in a state traditionally dominated by fossil fuels. This project demonstrates Wyoming’s growing role in the renewable energy sector, leveraging its world-class wind resources while creating new economic opportunities for rural communities.
Significance & Context
The Glenrock Wind Farm is a 99-megawatt (MW) facility developed by Duke Energy in Converse County. The project’s electrical output is sold to PacificCorp, serving customers across the utility’s Rocky Mountain Power service territory. Located in a region with exceptional wind resources, the facility generates enough electricity to power approximately 30,000 homes and represents a capital investment of approximately $150 million. Its development signals growing investment in Wyoming’s wind potential alongside its established fossil fuel industries.
Development Timeline
Development for Glenrock Wind Farm began with land acquisition and wind monitoring in 2014. The project successfully navigated Wyoming’s regulatory process, receiving approval from the Wyoming Industrial Siting Council in 2016. Construction commenced in early 2017 and proceeded through challenging high-plains conditions before achieving commercial operation in late 2018. The project’s development coincided with increased utility interest in cost-effective wind resources in the Rocky Mountain region.
Technology & Innovation
The project utilizes 33 Vestas 3.0-MW turbines equipped with cold-weather packages essential for operation in Wyoming’s harsh winters. These packages include blade heating systems to prevent ice accumulation and specialized lubricants for extreme temperature ranges. The turbine foundations were engineered for the specific soil conditions of the high plains, while the electrical collection system was designed to minimize power losses across the expansive project site.
Challenges & Controversies
A significant challenge was addressing concerns about the project’s potential impact on greater sage-grouse habitat, a species of significant conservation concern in Wyoming. The developer worked closely with the Wyoming Game and Fish Department to implement a comprehensive mitigation plan that included seasonal restrictions on construction activities during nesting periods, habitat enhancement measures, and financial contributions to regional conservation efforts. These measures helped balance renewable energy development with wildlife protection priorities.
Community & Economic Impact
The project provides meaningful economic benefits to Converse County. During peak construction, Glenrock Wind Farm typically employed over 150 workers, providing a temporary boost to local services. The project continues to support permanent operations and maintenance positions. Over its operational life, the project likely contributes millions of dollars in property tax revenue and landowner payments, supporting local services in a region experiencing economic transition.
Future Outlook
As a relatively new addition to Wyoming’s energy landscape, Glenrock Wind Farm is positioned for long-term operation. The project’s success demonstrates the viability of wind development in Wyoming’s specific climatic and regulatory environment. As analyzed by the U.S. Energy Information Administration (EIA), such projects could play an increasingly important role in the state’s energy mix. The site’s established infrastructure and strong wind resource make it a potential candidate for future expansion or repowering, ensuring its continued contribution to Wyoming’s diversified energy economy for decades to come.
At Franklin County you can find also: Kibby Wind Facility

