Solar Builder

JUL-AUG 2018

Solar Builder focuses on the installation/construction of solar PV systems. We cover the latest PV technology (modules, mounting, inverters, storage, BOS) and equip installers/contractors with tips and tools to make informed purchasing decisions.

Issue link: http://digital.solarbuildermag.com/i/992843

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34 J U LY / AU G U S T 2 0 1 8 A mid the solar market's mad dash to offer tracker solutions, Solar FlexRack has been taking its time. The company launched its first offering, the TDP Turnkey Tracker in early 2016, with the focus on a total solution. In contrast to competitors that were providing stand-alone solutions, Solar FlexRack offered a full services package coupled with its tracker to ensure project execution. The TDP carried a low total project cost by including full design, geotechnical analysis, installation, com- missioning and support services bundled in one contract. By the end of this year Solar FlexRack will have 2 GW installed and has built a reputation of taking care of its clients with a robust service offering. Solar FlexRack handles the installation on nearly 40 percent of the trackers it sells. All 50 installations of the first product are standing up and running, causing none of the wild tracker system failures that you may have seen captured on video around the world. On the contrary, Solar FlexRack has often been invited to those sites to fix prior mistakes. "We've seen a lot of things out there," says Steve Daniel, EVP of Sales and Marketing at Solar FlexRack says. "We've seen other trackers completely twisted in the wind and lying on the ground. We've seen a lot go wrong with bearing assemblies — a crucial component that attaches the posts to the torque tube. We've seen people undersize the torque tube, which leads to the torque tubes twisting when there is too much wind. We've seen modules com- pletely blown off the tracker in wind events due to under design." The diligent and methodical philosophy continues with Solar FlexRack ready to debut its first self-powered tracker, TDP 2.0. Like a basketball player that makes a living off the fundamentals more so than risking highlight plays, the TDP 2.0 isn't a f lashy new concept, but one that rounds out the company's offering for developers and EPCs in the utility-scale space in need of a reliable, full service solution. After building one as crooked as they could, to literally try and break it, and seeing it hold up, the fastidious engineering team felt confident in the offering. "We've invested a lot in the engineering side and made a con- scious decision to have that service offering. We're extremely cau- tious on our tracker design and feel our approach has resulted in a solid offering which will last the required life cycle of the project specifications," Daniel says. What's new about 2.0? Solar tracking exists in order to harvest as much power from the sun on a site as possible, which means you shouldn't lose sight of module density when selecting a tracking solution. This is top among the advantages of the Solar FlexRack TDP 2.0, which is only forfeiting 18 in. of space in a span of 90 modules for the module over the motor. The first version of the TDP maxed out with 60 modules and a rotation of 90 degrees. The TDP 2.0 is a 90-module table with a 110 degree rotation. The TDP 2.0 achieves a balanced system similar to NEXTracker by having the slew drive higher than the axis of the actual torque tube. The tracker control unit (TCU) is a proven solution that has been deployed in over 1 GW of its unit around the world. The Solar FlexRack TRACKING TRACKERS

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