NEXTracker, the fastest selling solar tracker in the world, inaugurated its expanded bifacial solar test facility at its Center for Solar Excellence in Fremont.
According to CleanTechnica, NEXTracker is partnering with Groundwork to measure and monitor the test array, using utility-scale sensors and analytics. The goal of the testing is to optimize the configuration of bifacial panels on the company’s NX Horizon trackers for future deployments globally. Factors being tested include the albedo — or ground reflected light, the height of the torque tube, elevations over time, and front and rear energy yield ratios, among others. The bifacial boost expected from the array is in the 8 to 10% range, minimally.
The self-powered NX Horizon rotation comes from a small solar panel on the motor, eliminating captive energy from the design yield. The so-called “distributed design” of the system is attributed to the ratio of one motor per eight-panel solar table.
NX Horizon is built at rotation-axis elevations up to 100% of the total PV panel width, and its large height-to-width aspect ratio maximizes module rear-side irradiance, the company says. The design also helps maintain consistent irradiance along the underside of the modules, something which is difficult and costly to accomplish with larger-format trackers, it says.
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Date: Apr 24, 2019 @ 16:52
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