Rattlesnake Solar Farm

About Rattlesnake I Solar Farm

Platteville, CO

At the time of commissioning in November 2017, Rattlesnake I Solar Farm, a 16 MWac solar project, became the largest cooperative solar array in Colorado. Rattlesnake is the third and largest project between partners Silicon Ranch and United Power.

16 MWac

Project Size


Solar Modules

175 acres

Site Footprint

In Partnership With


Largest cooperative solar array in Colorado

Rattlesnake comprises 175-acres of land located just east of Platteville, CO. More than 185,000 solar panels to track the sun from east to west and provide enough low-cost, renewable energy to power more than 3,000 homes annually.

*Project aerials courtesy of McCarthy Building Companies, who served as the EPC contractor on this project.

Quotes from Our Partners

“This will be the 3rd and largest project that United Power has done with Silicon Ranch. At 16 MW, this system will represent a significant resource in providing renewable energy to our communities. We are especially proud that Silicon Ranch could work with us in adopting a load following strategy to minimize the impact of these larger systems on the distribution system. The 36.5 MW of solar that Silicon Ranch has helped us develop along with the additional 24 MW of small solar has placed United Power in the top 5 for co-ops in the nation for connected solar. It’s been a great working relationship and very impactful to our utility and to our community.”
Jerry Marizza,
New Energy Program Coordinator, United Power Cooperative