South Cheyenne Solar

South Cheyenne Solar project represents a strategic diversification of the state’s energy-dominated economy. As one of the largest solar facilities in the state, it signals a new chapter for a region historically powered by fossil fuels, leveraging the same abundant land and energy infrastructure for a cleaner generation of power.

Significance & Context

The South Cheyenne Solar project is a substantial 80-megawatt (MW) facility being developed by Enbridge. The project’s entire electrical output is contracted to Black Hills Energy under a long-term power purchase agreement, supporting the utility’s commitment to integrate more renewable resources into its Wyoming portfolio. This initiative aligns with the state’s “all-of-the-above” energy strategy and will generate enough electricity to power approximately 16,000 homes. The project represents a capital investment of over $100 million in Laramie County.

Development Timeline

Development for South Cheyenne Solar began with land acquisition and preliminary studies in 2020. The project successfully secured its interconnection agreement, a process overseen by the Wyoming Public Service Commission. After finalizing its power contract with Black Hills Energy and securing all necessary local permits from Laramie County, major construction commenced in early 2023. The project reached commercial operation and began delivering power to the grid in the first quarter of 2025.

Technology & Innovation

The South Cheyenne Solar project utilizes a fixed-tilt mounting system, a robust choice for the region’s high winds and occasional hail. A key feature of its design is a focus on water conservation in the arid climate. The project employs a water-free robotic cleaning system to maintain panel efficiency, significantly reducing its operational water footprint—a critical consideration highlighted in the Wyoming State Water Plan. The site plan also includes the establishment of native, drought-resistant grasses to control dust and support local biodiversity.

Challenges & Controversies

A primary challenge for the South Cheyenne Solar project was navigating the visual impact concerns in a region with wide-open vistas. Some residents and county officials were initially apprehensive about the industrial transformation of the landscape. The developers addressed this through a proactive engagement campaign and by working with the Laramie County Planning and Development Office to agree on enhanced setbacks and a commitment to extensive vegetative screening. This collaborative approach helped build acceptance and secure the necessary special use permit.

Community & Economic Impact

The project provides a tangible economic benefit to Laramie County. During the peak construction phase, South Cheyenne Solar typically employed over 150 workers, providing a significant boost to local services. Over its 30-year operational life, the project is projected to generate millions of dollars in new property tax revenue. This revenue will likely contribute substantially to the county’s budget, providing enhanced funding for local schools, emergency services, and infrastructure. For the landowners hosting the arrays, the long-term lease payments offer a stable and reliable source of income, diversifying the rural economy.

Future Outlook

Now fully operational, the South Cheyenne Solar project is a long-term asset that will provide clean power for decades. Its successful integration demonstrates the viability of utility-scale solar in Wyoming’s energy mix. The project’s infrastructure is also designed to be “storage-ready,” with potential for the future co-location of a battery energy storage system. As noted in the U.S. Energy Information Administration’s (EIA) state profile for Wyoming, adding storage could allow South Cheyenne to supply power during peak demand periods, further increasing its value to the grid and solidifying its role in the state’s diverse energy portfolio.