FTC Solar’s New Voyager+ Solar Tracker for Large Format Modules Withstands Winds up to 120 Miles Per Hour

– FTC’s proprietary damper design eliminates torsional galloping, working like a shock absorber.

– Company collaborated with engineering and environmental engineering consulting firms RWDI and Engineered Power Solutions (EPS) on data analysis and wind tunnel testing to independently validate structural stability.

– The 2P tracker is designed for modules 550 watts and higher.

– More than 1GW of Voyager+ installed, under construction, or under contract in the South Central US.

– Company to host Voyager+ customer appreciation event the week of September 21 at its research and development training facility in Denver, Colorado.

As the solar industry drives toward Large Format Modules, FTC Solar, Inc. (FTCI) unveiled the Voyager+, a new 2P-design solar tracker that optimizes energy capture while simultaneously reducing the manpower and equipment needed for installation. The tracker’s ability to enhance energy production levels with 46 percent fewer foundation piles and achieve nearly two percent higher energy density than its 1P competitors makes it a revolutionary product for utility-scale solar projects. Currently, FTC has more than 1GW of Voyager+ installed or under contract.

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“As the solar industry moves toward large-format modules of 550 watts or higher , traditional one module in portrait tracking systems have difficulty supporting these new large ‘sails’ while two in portrait designs have already had this experience of scaling to larger surface areas. Because the static and dynamic wind loads are much greater on the structures, with these large formats, there is an ongoing need for improved tracking designs,” said Nagendra Cherukupalli, Chief Technology Officer of FTC Solar. “To answer this call, our team developed Voyager+ to tap into the benefits of 2P designs with proper management of wind loads and the seamless integration of large, complex solar modules – resulting in a zero-stow design.”

While some industry 2P trackers struggle to mitigate the effects from wind that may happen at low wind speed from vortex shedding and torsional galloping, FTC Solar conducted extensive wind tunnel testing and modeling to develop a unique dampener design to deliver a dampening ratio three times higher than traditional systems. Validated by RWDI Tunnel Testing, the tracker utilizes a robust design of wind mitigation long-term reliability.

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FTC Solar collaborated with RWDI and Engineered Power Solutions (EPS) on data analysis and wind tunnel testing to independently validate the product’s structural stability. FTC Solar first conducted code-base methods used commonly in engineering to understand static wind forces based on design parameters at the site, wind speed, exposure, and similar factors. Initial sensor-based testing was performed with models of the Voyager 2P system to measure static wind loads and how they affected the structures.

“Utilizing our baseline understanding from the RWDI model test, FTC developed a highly damped system design,” said Matthew Gilliss, CEO, and President of EPS. “By undergoing these tests, their engineering team developed an understanding of common system flaws in design and what preventive measures were necessary to eliminate the risk of aeroelastic instability.”

Currently, FTC Solar has deployed more than 2.5 Gigawatts of solar trackers, supported by a global footprint with 31 manufacturing partners in 12 countries.

FTC Solar will be hosting a webinar with PV Magazine on Wednesday, September 15, 2021, at 11 am EST. The webinar will detail a new wind mitigation strategy that helps increase reliability and unlock lower material costs. It will also cover storm damage in the tracker industry, stow angles, aeroelastic stability of trackers, and wind tunnel reports.

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