Progreen Solar

As the current #1 ranked solar EPC in Colorado, Progreen Solar entered our evaluation process on the lower end of the top-ten candidates in their home state. However, what followed was one of the most compelling conversations our research team has had during this ranking cycle.

When we reached out to the company, we were connected directly with the owner. The exchange that followed left a strong impression on our lead evaluating engineer, who holds deep specialization in solar energy systems. What stood out was not simply a command of installation practices or product specifications, but a genuine and thorough understanding of the broader solar industry, its environmental impact, and the global implications of widespread solar adoption. It was clear that this is a business led by someone who lives and breathes the work, not just from a commercial standpoint, but from a place of real conviction about where the energy landscape is headed.

ProGreen Solar also benefits from a strategic partnership with a roofing company that brings over 15 years of hands-on experience. That kind of structural expertise is difficult to replicate and contributed meaningfully to their overall score, reinforcing confidence in the quality of their rooftop installations and respective warranties.

The company employs NABCEP-certified professionals and holds tier-one manufacturer certifications for all of the top brands, including being a Tesla Certified Installer. They work with premium panel brands such as REC, Silfab, and Hyundai, paired with Enphase, SolarEdge, and Tesla inverter platforms. Their equipment selections reflect a thoughtful approach to matching system components with each customer's specific needs.

Across residential, commercial, and what appears to be small utility-scale projects, ProGreen Solar demonstrates a level of versatility that is uncommon among installers of their size. Their ability to operate across all three sectors with apparent confidence and competency speaks to the depth of their team and the leadership behind it.

As a locally owned and operated company based in Longmont, ProGreen Solar brings firsthand knowledge of Colorado's solar landscape, permitting requirements, and local building codes.

With a composite score of 87.3 out of 100, ProGreen Solar stands as our top-ranked solar company in Colorado for 2026.