pv magazine test September 2020 results


The first chart to the right details the meteo station data (irradiance and ambient temperature) for September 2020. The daily temperature and irradiance data is missing for Sept. 26 due to a power cut. The average bifacial boost for September 2020 is 6.3%. Bifacial boost is defined as the extra energy yield of the bifacial products, compared to the average energy yield of all mono-facial mono PERC products. The chart to the bottom right shows the comparison between different PV module technologies for September 2020.

Bifacial modules are steadily performing above all the other technologies, with multicrystalline silicon PV having the lowest yield.

Notes on the energy yield measurements:

  • The energy yield is given in Wh/Wp and is calculated by dividing the energy produced by the module by the Pmax at STC of the module. This Pmax is the maximum STC power after a process of stabilization.
  • The results are grouped in categories, per module type.
  • The bifacial boost depends on many parameters, including the bifaciality factor, the installation geometry, the albedo of the ground, and the sun angle and diffuse irradiance. The ground in this case is gray gravel. 6648.jpgGeorge Touloupas

We are pleased to present the next batch of energy yield results from the outdoor test field in Xi’an, China. In this issue, we present the September results, along with analysis from George Toulouas, director of technology and quality at CEA.

Test cooperation

pv magazine test is a cooperative effort involving pv magazine, CEA and Gsolar. All testing procedures are carried out at Gsolar’s test laboratory in Xi’an, China. CEA supervises these tests and designed both the indoor and outdoor testing procedures.

Bifacial boost
all in Wh/WpTotal Jun 2020Total Jul 2020Total Aug 2020Total Sep 2020
Average monthly yield76.2083.52107.57103.07
Average monthly bifacial yield80.5988.57112.96107.65
Average monthly monofacial Mono PERC yield74.2881.39105.39101.26
Operation days21253027
Average daily yield3.633.343.593.82
Average daily bifacial yield3.843.543.773.99
Average daily monofacial yield3.543.263.513.75
Bifacial boost8.5%8.8%7.2%6.3%

Energy yield ranking
#Installation MonthProductTypeTotal
Jun 2020 Wh/Wp
Jul 2020 Wh/Wp
Aug 2020 Wh/Wg
Sep 2020 Wh/Wg
Jun 2020 rankJuly 2020 rankAug 2020 rankSep 2020 rank
26Aug-19LONGi LR6-72HBD375Bifacial Mono PERC82.6591.07116.50111.182211
18Oct-18LONGi LR6-60BP-300MBifacial Mono PERC82.8391.21116.40111.001122
27Dec-19JW-D72N-400Bifacial Mono N-TOPCon80.9888.75113.05107.423333
17May-18NSP D6L310L3ABifacial Mono PERC80.0788.02112.19107.165554
1May-18Jolywood JW-D60N-305Bifacial N-PERT80.4188.18112.27106.804445
16May-18LONGi LR6-60PE-310M 2Mono PERC76.0583.84108.00103.857766
20Nov-18Phono PS380MH-24/THMono PERC75.0282.76106.64102.508887
28Apr-20Risen RSM114-6-405BMDGBifacial Mono PERC76.6484.19107.34102.386678
29Jul-20CSI CS3U-390MSMono PERC81.67106.54102.251299
10May-18Recom RCM-275-6MB-4-BB21Mono74.5182.41106.09101.841091010
21Mar-19Risen RSM120-6-320MMono PERC74.7782.26106.09101.819101111
14May-18Sample 2Mono PERC74.4581.97105.44101.4811111212
8May-18Aiduo AD280-60SMono73.9381.50104.91100.9013141413
9May-18Aiduo AD265-60PMulti74.0181.60105.09100.7412131314
2May-18Phono MWT-60-280Multi MWT73.1880.76104.17100.2015161515
3May-18Risen RSM60-6-270PMulti73.0780.63103.9699.9916171716
22May-19Znshine ZXP6-60-275/PMulti73.5781.06104.1799.9214151617
12May-18NSP D6LM305E3AMono PERC72.9279.96102.7098.5417181818
4May-18Perlight PLM-300M-60Mono PERC72.4879.73102.3398.3618191919


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