Array Technologies, Inc.

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DuraTrack HZ v3 with First Solar

Array Technologies with First Solar at 265 MW Mt. Signal Solar, boasting more than 3 million thin-film modules mounted on a DuraTrack HZ single-axis tracking system, in operation since 2013.

The (r)evolution in tracker design continues

The latest evolution of the DuraTrack HZ v3 features an optimized interface for mounting First Solar thin-film modules. Together, these two powerhouses deliver superior energy performance and reliability to your solar plants for the best LCOE.

Greatest Reliability –  Reducing the number of sensitive components has resulted in the highest operational uptime in the industry. Many other trackers have 166 potential failure points for every 1 in the DuraTrack HZ v3. First Solar modules also have years of proven reliability in harsh environments.

Highest Performance –  Combine the high density made possible by the DuraTrack HZ v3 with First Solar’s thin film module performance advantage for winning returns. You can boost production within a tight footprint by taking advantage of up to 6% higher tracker density.

Optimized Installation –  With the fewest fasteners of any option, DuraTrack HZ v3 provides a seamless mounting solution for First Solar modules. This streamlines the most labor-intensive step, adding up to big savings. The robust mounting interface is designed and tested to withstand up to 2400 pascals.

Zero Scheduled Maintenance –  The tracker’s gearboxes are sealed and lubricated for life, resulting in zero scheduled maintenance. All tracker rows self-calibrate twice daily, ensuring that each row is always at the optimal tracking angle. Uninterrupted module rows create a robot-ready design permitting autonomous module cleaning.


Array Technologies made history in 2013 with the successful integration of First Solar thin-film modules on single-axis solar trackers at the 265 MW Mt. Signal Solar. The largest thin-film solar tracking facility in North America at the time, it boasts more than 3 million First Solar thin-film modules mounted on a DuraTrack HZ single-axis tracking system. Click here to view the Mt. Signal Solar featured project profile.