Sunstall Leads the Way in Ground-Mount Solar Installations Nationwide

Since 2011, Sunstall has grown from a small startup into a leader in large-scale solar work. Over the years, the company has brought solar power to sites from Hawaii to Massachusetts. It focuses on big utility and commercial projects. It stands out by doing the full mechanical install—from pile testing to module placement.

History and Reach

Sunstall started in Novato, California, in 2011. Back then, it began by offering flat‑tilt and tracker installs. Today, it has delivered over 450 MW of solar capacity in more than half of U.S. states.

The firm works with top brands like

• Schletter, MSI, Solar Flexrack
• First Solar, GameChange, Nextracker
• ATI, TerraFix, RBI, Soltec

They even help with repowering and repair once systems are live.

Comprehensive Mechanical Services

Sunstall focuses on the mechanical side of solar systems. They do:

• Pile testing—to check soil and stability.
• Foundation installation—using piles, screws, or concrete.
• Racking assembly—fixed tilt or tracker frames.
• Module placement—clean and precise on racks.

They manage everything from material delivery to quality control. In parts of California, they even handle electrical, since they are licensed there.

Record of Success: Project 100

In April 2025, Sunstall, OMCO Solar, and Coldwell Solar did their 100th joint large solar project. They built both fixed-tilt and tracker systems across different land types. OMCO praised Sunstall’s teamwork, saying their crews work reliably no matter the site. Tom Forman of Coldwell Solar added that the partnership is consistent. He expects another 100 installs soon.

Efficient and Safe Execution

Sunstall uses modern tools and clear methods. Their crews drive piles with machines that cut down installation time. That means faster project delivery and savings for developers. Each location gets a tailored plan. They test soil. They plan for weather. Then they build according to those plans. This model helps avoid costly delays.

Top-Notch Safety and Standards

Sunstall trains workers well. They hold regular safety drills. This careful training has led to a very low incident rate. They also limit waste and aim for clean, well-kept sites.

They even offer inspection and maintenance. Some clients choose full IV‑curve tracing; others just want infrared checkups.

Handling Harsh Conditions

Projects happen in tough spots—frozen fields or muddy soil bring hazards. In one winter job, trucks got stuck. Crews used full-size trucks to drag them out. Other sites had drainage issues. Sunstall learned it must test soil and drainage before building.

Why Mechanical Accuracy Matters

Pile positioning sets up the whole system. Bad foundations sway racks and panels. Sunstall’s tests ensure long-lasting builds. Helge Biernath, the CEO, stresses foundation precision and weather planning for long-term performance.

Innovation: Vertical Solar for Farms

Sunstall is branching into agrivoltaics. They introduced Sunzaun—vertical panels between piles. Sunzaun works for farms, vineyards, or fences. It powers homes and saves soil moisture.

In 2022, a 23 kW vineyard system used 43 vertical bifacial modules. Sunzaun shading also helps plants and livestock. The CEO says Sunzaun helps rural landowners save money and cut carbon.

Overview Table of Services

What Clients Say

• Helge Biernath (CEO): “We’ve shown we can deliver in many terrains.” 
• Tom Forman (Coldwell): “They are dependable on every site.” 

Looking Forward

Sunstall plans to grow with demand for clean energy. They want faster installs, new methods, and more skilled crews. They aim to keep lead times short by sticking with U.S.-made supply chains like OMCO’s.

As solar grows in farms and highways, Sunstall expands services. Their mix of speed, quality, and safety helps developers save time and money.

Learn more about how Sunstall works: https://sunstall.com/