Hanwha Solar scored a good result in the test already last year, but the company wanted to test itself once again. In the overall evaluation the module earned the grade Good (+),thus achieving a half grade better than last year. The rated output had the greatest impact on the evaluation. Customers will be happy to learn that on the average the modules exhibit 0.5% greater output than is indicated as the lower limit on the data sheet. Last year the modules output continued to be less than indicated on the data sheet, but within the measuring tolerance. This resulted in a clear reduction of test points at the time.
The good result of the 255 W HSL60P6-PB-1-255 this year shows that the manufacturer took the problem seriously and got a handle on it as well. Among other things, this is due to the fact that in cooperation with TÜV Rhineland Hanwha Solar introduced power controlled testing, explains Winfried Wahl, Senior Director Products & Marketing at Hanwha Solar. Power controlled testing involves a special program developed by TÜV Rhineland in which both the production process and the products of a particular manufacturer are subjected to testing on a regular basis. In this case TÜV checks whether the solar modules are actually capable of the output promised by the manufacturer. In the course of implementation the flashers from Hanwha Solar also received new certification, adds Wahl. This involved new calibration of all of the flashers in production using the reference from TÜV Rhineland. The deviation in the measured values between the measurement at Hanwha Solar and the measurement at TÜV now amounts to less than one percent.
PV+Test is an independent module test from the German safety standards authority TU?V Rhineland and Solarpraxis AG, publisher of pv magazine. The modules are purchased independently from the market so that any suggestion of manipulation is ruled out. These selected modules are then tested in accordance with a procedure approved by an acknowledged industrial consortium. The test provides information with regard to aging stability, performance, electrical safety and documentation.
See the test results in detail.
pv magazine reported in depth on the test results in its February issue.
Read more about PV+Test, the ratings and publications.
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