We will be happy to answer any questions you may have regarding PHOTON module tests.Engineered for precision placement at medium range, the extremely versatile Sightmark® Photon XT™ 4.6x42S delivers a higher magnification, 33% longer battery life and 30% lighter weight than other digital night vision riflescopes on the market. For more detailed information please have a look at the data sheet.įurthermore, PHOTON's module measuring instruments are also offered to third parties, allowing module manufacturers and solar park operators to carry out their own measurements. The first generation of measuring instruments sometimes had difficulties coping with this effect. The new measuring devices are also suitable for high-capacity high-performance modules: in the case of modules with back-contact cells, it is important not to perform the measurement too quickly, as otherwise charge carriers will accumulate in the cell and falsify the result.
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Moreover, the PHOTON laboratory has meanwhile developed a new generation of measuring instruments that operate with an accuracy of plus minus 0.5 percent and are even more precise than the first generation instruments. The measurements were suspended in 20, but will be resumed in 2018. In the meantime, results are available for around 200 different module types for the period up to June 2015. Since the incident solar irradiation and temperature are also continuously measured, further statements can be made about the behavior of the test candidates. the module yield, to be recorded very precisely. The measurement is carried out directly on each individual module, eliminating falsification caused by cable routes or even an intermediate inverter. PHOTON has developed a measuring device for this purpose which records the current-voltage characteristic curve of a module every second.
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The PHOTON laboratory started these measurements in 2004, and they quickly became the world's largest test series of their kind to date. Measuring the yield from solar modules was the first test PHOTON developed. Together with the information obtained from the endurance test, the gold standard among the PHOTON module tests therefore includes a statement about the expected yield of a module over a certain period of time. A higher yield would justify a higher price per watt.
However, the yields from a 300-watt module made by manufacturer A can differ significantly from those of a 300-watt module made by manufacturer B – this leads to lower or higher electricity generation costs in system operation. Most module manufacturers, however, do not provide any information on the expected yield: The data sheet shows the rated power in watts, according to which the sales price is also set. In addition to the life span of a module, the expected yield over this period is the second factor that is indispensable for every calculation.
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