ARRAY ATLAS™ SUITE
What is the ARRAY Atlas Suite?
The ARRAY Atlas is a suite of integrated foundation-to-tracker solutions jointly engineered by ARRAY Technologies and APA Solar, an ARRAY company, using the Atlas bearing platform.
This native integration creates a seamless system engineered to help simplify construction, improve project economics, and reduce risk. The answer is not a better pile. It is an engineered system.
The Atlas suite addresses four realities shaping projects today:
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Elevated steel costs and concentrated supply chain exposure
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Deformation risk from fragmented foundation-to-tracker interfaces, with split warranty ownership at the connection point
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Design inflexibility when site conditions vary
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Schedule risk from product procurement lead times
Why Should Developers and EPCs Choose ARRAY Atlas Suite?
Utility-scale solar projects face growing pressure from steel costs, supply concentration, site variability, and installation complexity. The Atlas Suite is a foundation-to-tracker system purpose-built for ARRAY trackers, designed with native integration to help teams execute projects faster, lower cost, and strengthen their sourcing resilience. Jointly engineered by ARRAY and APA Solar—combining ARRAY’s tracker reliability with APA’s nearly two decades of site-specific foundation design and field-tested installation practice.
One integrated connection. Fewer components. Smarter design.
- Native foundation and tracker connection in a single engineered solution
- Eliminates traditional bolt-on adapter hardware between the foundation and tracker
- Delivers a coordinated system designed together—versus pieced together in the field.
Simplifies construction, reduces field complexity, and supports more predictable installation outcomes.
- Configured to accommodate above-ground wire management solutions, enabling innovative cable management while helping streamline field labor activities
- Select the foundation technology best suited to your site while maintaining a consistent Atlas bearing housing across both configurations
- Atlas I: sigma pile or W-beam foundation for standard, favorable soil conditions
- Atlas II: helical pile or ground screw for frost-prone, rocky, or soft soil conditions
- Vertical and E/W adjustability at the tracker interface (Atlas II)
- Terrain-following capability through Atlas bearing housing design
- Both configurations share the same integrated Atlas bearing housing, configurable for 52°, 60° or 77° by changing the hard stop only
Reduces total installed cost by minimizing rework exposure, hardware complexity, and procurement risk before the project breaks ground.
- Two-piece Atlas I architecture decouples the driven pile from the precision tracker interface
- Tracker interface protected from driving stresses and field variation
±3 in. of vertical adjustment at the C-channel connection (Atlas I) - Eliminates the 90° side bracket
- Bearing housing connection reduced from 6 bolts to 4 (Atlas I) or 2 (Atlas II)
Atlas I replaces commodity W-beams with an engineered solution that reduces both procurement exposure and total steel weight.
- Roll-formed sigma pile architecture broadens the supplier base beyond concentrated mill networks
- Lighter sections require less total steel for equivalent structural performance
- Configurable post-manufacturing improves schedule certainty
- +20% YTD increase in 2026 U.S. hot-rolled coil steel pricing makes commodity sourcing increasingly costly*
- Regional coil sourcing reduces exposure to mill concentration and tariff-driven buying cycles
*Source: Wood Mackenzie, CRU, AISC, ARRAY Monthly Updates Report June 2026. All figures subject to site conditions and project assumptions.
Beyond the Tracker: Integrated Engineering from the Ground Up
One Common Atlas Bearing Platform
Allows flexibility to select the foundation technology without changing the tracker platform.
52°/ 60°/ 77° Tracker Compatability
Supports ARRAY tracker systems through a simple, hard stop change.
Foundation-to-Tracker
Native Integration reduces hardware, assembly, and installation complexity.
Introducing the ARRAY Atlas Family
Two configurations. One shared bearing platform. Virtually every soil condition.
ARRAY and APA jointly engineer proven foundation technology and a tracker interface as one coordinated solution. The result is the ARRAY Atlas Suite—integrated foundation-to-tracker solutions engineered from the ground up to perform as one coordinated system.
Shared Across Both: The same integrated Atlas bearing housing, configurable for 52°, 60° or 77° by changing the bearing’s hard stop only—no stamping or fastener changes required.
Key Specifications & Design Features of the ARRAY Atlas Suite
ATLAS™ I
Standard & Favorable Soil Conditions
Atlas Bearing Housing
Bearing housing connection reduced from 6 fasteners to 4. Configure 52°, 60° or 77° by changing the hard stop only—no stamping or fastener changes.
C-Channel Extension (CEE)
Roll-formed C-channel (pre-galvanized G90, 80 ksi, 9 gauge) bolted to sigma or W-beam foundation. Never driven. Tracker interface is always pristine. Adjustable bolt-hole pattern allows ±3 in. vertical height correction in the field.
Sigma Foundation Pile
Pre-galvanized roll-formed sigma profile, 9 or 11 gauge. Equivalent structural performance to W8×15. Stiffer edge profile improves driving performance and reduces deformation risk. Best for sandy soils and lean clays.
H/W-Beam Option
W8/W6 H-beam available where high corrosion, high tracker loads, or stiffer/rockier soil conditions are present. Bearing and interface components remain identical; only the driven pile changes.
Sourcing Advantage
Roll-form architecture with regional coil sourcing broadens the supplier base beyond concentrated mill networks and reduces commodity steel exposure.
ATLAS™ II
Challenging & Difficult Soil Conditions
Atlas Bearing Housing
Connects ARRAY tracker systems to the Atlas II interface. Reduces bearing fasteners from 6 to 2, simplifying installation and improving efficiency.
Evolved A-Frame® Interface
Built on APA’s proven A-Frame® 2.0, optimized for ARRAY tracker systems. Reduces parts, bolts, and connection points. Eliminates the 90° side bracket—one of the most time-consuming assembly steps.
Helical Pile
Circular steel tube with larger helix plates for added pullout resistance. Onsite anchor testing available. Best fit: high water tables, soft/clay/expansive soils, low blow counts.
Ground Screw
Heavy-walled shaft, forged tip for obstruction resistance. Patented automated weld process for thread consistency. Hot-dip galvanized. Best fit: rocky soils, hardpan bedrock, frost heave, high blow counts.
Vertical + E/W Adjustability
Adds vertical and east/west adjustability at the interface, supporting sites with topography and reducing costly field rework when terrain varies across a foundation row.
Terrain-Following Capability
Atlas bearing housing enables terrain-following capability across ARRAY Tracker Systems, extending flexibility from the foundation through the tracker.
Atlas™ I & Atlas™ II
Shared Configurations
Bearing Housing Platform
One integrated Atlas bearing housing, configurable for 52°, 60° or 77° by changing the bearing’s hard stop only. No stamping or fastener changes required.
ARRAY Tracker Compatibility
Both Atlas configurations are designed exclusively for ARRAY tracker systems and support the full ARRAY tracker portfolio.
Integrated Engineering
ARRAY and APA jointly engineer foundation and tracker interface as one coordinated system—not adapted separately in the field.
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