Primergy Solar

Hesperus Solar Project

La Plata County, CO

155 MWac solar + 155 MW battery storage

Over 300,000 photovoltaic (PV) panels

1,900 acre property site

Hesperus Primergy Project Map

La Plata County, CO


155 MWac solar + 155 MW BESS

What is Hesperus Solar?

The Hesperus Solar Project is a 155 MWac solar + 155 MW storage project currently under development 15 miles outside of Durango, Colorado, on 1,900 acres of private land that will provide clean, low-cost energy, generate new jobs, and significant local tax contributions and environmental benefits for the surrounding community.

Hesperus Solar has made commitments to provide the following benefits:

Preserving Rural Lands

Hesperus Solar will encompass approximately 1,900 acres of rural lands with a low-impact solar installation, generating tax revenues through production for an estimated 30+ years. Over two-thirds of the site will remain under local ownership, and those landowners will receive lease payments during the project’s lifetime.

Employment and Professional Development

Hesperus Solar will bring approximately 150 full-time equivalent construction jobs on average, with up to 250 jobs during peak construction periods to La Plata County. The project will generate opportunities for professional development, including local recruitment, engineering teaching programs, and on-the-job training. Primergy projects focus on utilizing regional vendors to bolster the local economy.

Tax and Revenue Sharing

Hesperus Solar will provide tax payments totaling up to $37 million over the project’s life, which will directly benefit local schools and provide La Plata County with substantial resources that may be directed toward public safety, road upgrades, and infrastructure improvements.

Environment and Grid Resiliency

Hesperus Solar will generate 155 MWac of solar, enough clean, reliable energy to power up to 56,000 homes annually. The addition of a 155 MW battery energy storage system (BESS) will provide a consistent, dispatchable energy resource designed to support Colorado during peak energy demands.


Frequently Asked Questions

Hesperus is expected to begin construction in 2024. Project construction may be delayed or accelerated based on multiple factors including permitting, the availability of materials, and electricity offtake arrangements.

Once the project starts construction, it will take approximately 12-18 months to complete and begin delivering clean, low-cost solar energy.

Yes. Primergy Solar takes all measures to ensure safe operations. Electricity generated with solar panels emits no greenhouse gases and no air or water pollutants. An assessment of the full lifecycle of solar panels concludes they have 4% of total greenhouse gas emissions than a coal-fired plant.[1]
The project will be monitored 24 hours a day, 7 days a week from our remote operations desk. This ensures that we are aware of the operations at the site at all times.
Primergy Solar would be happy to hear from you! We typically are interested in properties 10 acres or larger as a typical solar energy facility requires 8 acres of land for every MW of solar energy generated. Ideal properties are located nearby electric lines and substations. Please contact to see if your property fits our needs.
Primergy appreciates your questions and comments. Please email and we will get back to you!

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