Unirac Large Array (U-LA)

Unirac Large Arrays start at 3 kilowatts, but their size is limited only by the size of your ground site or the structural strength of your flat roof.

We design U-LAs for a wider range of site and climactic challenges than any other PV structure on the market. U-LA aluminum or steel components merge with SolarMount rails and installer-supplied steel pipe (readily available) to form durable, rigid truss structures.

It's a cost-effective mounting solution that has grown with the vision of the PV industry. Today, U-LA customers routinely reap hundreds of kilowatts to megawatts per installation.

Main Components
Attachment Options

UniRac Large Array

Front cap flanges anchor north-south cross braces. Aluminum (above) and steel varieties ensure the best solution for your array.

UniRac Large Array

Front cap flanges anchor north-south cross braces. Steel (above) and Aluminum varieties ensure the best solution for your array.

UniRac Large Array

Mount modules in landscape mode using the U-LA truss structure, leg caps, rail brackets, and cross pipe couplers. Note: Your installation may require incidental material, such as wood, to construct temporary supports or gravel to promote drainage below concrete footings.

Gallery

Every U-LA is diagonally braced for the most severe events. In 30 years, you’ll find it where you installed it.

Lightweight aluminum components keep shipping costs low, a major consideration for this installation in the United Kingdom. Because assembly took place atop a high-rise, we also designed to accommodate a maximum allowable component length.

High-profile orientation maximizes module density at your site. Choose a tilt angle that suits your geographic location.

Unirac custom designs U-LA for open, flat and tilted commercial roofs to large PV arrays to the degree which most off-the-shelf products cannot. Designs will optimize tilt angle and can provide clearance to assemble your array over other rooftop equipment.

Case Study

Case Study: Barrier Islands Hybrid Plant

Download On-Site Application Sheet (PDF, 179 KB)

Key Benefits

Versatility

Custom-designed arrays for ground or flat roof applications
Design software to ensure minimum attachments without overstressing any roof member
Optimal tilt angle and array clearance over other rooftop equipment
Accommodates uneven, rocky, sloping terrain or heavy costal winds

Value

Better alternative than designing from scratch
Lightweight components ship economically and combine easily with installer-supplied Schedule 40 or 80 steel pipe, available everywhere

Ease of installation

Uses SolarMount standard and HD (heavy duty) rails
Ready with design documentation and testing reports

Strength

Capable of withstanding Zone 4 seismic events or extreme wind or snow loads
Diagonally braced

eQuestionaire

Need help configuring your system?

Unirac designs their custom solutions to accommodate site conditions and applicable codes. If you need help configuring you system, please fill out our eQuestionaire to help us understand your PV mounting needs. In return, you�ll receive a bill of materials and pricing for your selected product solution. Please allow 48 hours to receive an estimate and 1 week for a quote.

Downloads

Installation Manual using Aluminum Components

Find out about our other open structure solutions

SolarMount Tilt and Flush

SolarMount is the most versatile PV mounting rail system on the market today. We've engineered installer-friendly components for maximum flexibility, allowing you to solve virtually any PV mounting challenge.

SunFrame Rail System

SunFrame shared rail system makes clean energy look good. Unirac engineered the SunFrame to sit in low, gap-free rows, offering superior aesthetics. SunFrame is also the choice of solar experts as an optimal solution for custom carport structures.