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SolarWindow Transparent Electricity-Generating Window Coatings Pass Important Weather-Performance Testing

Post Time:May 08,2017Classify:Industry NewsView:1065

SolarWindow Technologies, Inc. today announced successful completion of important freeze/thaw performance testing necessary for the commercialization of its transparent electricity-generating coatings that could turn ordinary passive glass into electricity-generating windows.

These transparent, electricity-generating coatings have the potential of turning new and existing tall buildings into 鈥榗lean power generators.鈥?When applied to a 50-story building, for example, SolarWindow鈩?could reduce electricity costs by up to 50 percent per year and achieve a one-year financial payback, according to independently-validated modeling.

Since commercial buildings consume almost 40% of all the electricity generated in the US, electricity-generating windows that reduce electricity costs could be compelling for building owners, while simultaneously providing environmental benefits and reducing carbon dioxide emissions.


In order to determine the ability of the electricity-generating coatings to withstand real-world environmental conditions, the company, along with scientists and engineers at the U.S. Department of Energy鈥檚 National Renewable Energy Laboratory (NREL), subjected SolarWindow鈩?modules to cycles of high temperatures followed by extremely low temperatures to simulate natural environmental conditions.

During this test, SolarWindow鈩?modules were subjected to more than 200 freeze/thaw cycles, which yielded favorable performance results of the edge sealing processes and minimal impact on the device electrical performance.

SolarWindow鈩?modules are being designed for durability using a variety of processes and materials, including encapsulation and edge seals, to protect the layers making up the electricity-generating coating.

鈥淭his particular test is very important to establish the thermal and mechanical stability of SolarWindow鈩?coatings. As a part of windows of the future, such coatings will naturally be exposed to temperature extremes and cycles that cause mechanical stresses, which can eventually lead to failure,鈥?said Dr. Scott Hammond, Principal Scientist of SolarWindow.

鈥淏y appropriately engineering our layer lamination and edge sealing processes, we can minimize such stresses and ensure long operational lifetimes, regardless of the outdoor environment the windows are exposed to.鈥?/p>

鈥淧assing the freeze/thaw temperature cycle testing is another important step towards commercializing SolarWindow鈩?coatings,鈥?said John Conklin, President and CEO of SolarWindow. 鈥淪uccessful completion of this test puts SolarWindow鈩?modules one step closer to meeting performance PV test standards required by IEC.鈥?/p>

IEC, or the International Electrotechnical Committee, defines PV performance as a set of specific test sequences, conditions, and requirements for the design qualification of a PV module. The company will address the appropriate IEC PV module performance standards when SolarWindow鈩?products are commercially fabricated.

鈥淚t is important to verify applicable PV and window performance standards, and confirm that our test results meet the standards. The success of the freeze/thaw temperature cycle testing, at this stage, is a positive indication of progress towards commercialization,鈥?said Conklin.

SolarWindow鈩?products are being developed in collaboration with NREL under a Cooperative Research and Development Agreement (CRADA). The primary development goal of the CRADA is the commercialization of SolarWindow鈩?products.

Source: solarwindow.comAuthor: shangyi

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