pv magazine outdoor test

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In June (pv magazine 06/2018, p. 100) and September (09/2018, p. 106), we detailed the field setup and testing methodology, alongside conclusions from the first results.

The graph below charts the meteo station data (irradiance and ambient temperature) at the testing site for August and September 2018.

August had the highest irradiance and highest average temperature, and September had unstable weather with many low irradiance days.

Energy yield data for the months from June to September are given in the table below right at the bottom of p. 61, which reveals the dominance of bifacial products as well as their consistency.

The first five ranking positions in each month are marked in bold type. It is interesting to observe the first two positions being steadily taken by the bifacial products. The rest vary quite a lot per month, with Longi’s products tending to hold the third and fourth positions, aside from an outlier month in August.

The graph above right at the top of p. 61 shows the ranking of all tested products according to their cumulative energy yield from June to September.

The table below left shows data for the bifacial output boost. The bifacial products remain in the lead overall, although there is a slight dip in performance in September. This is probably related to the very different climatic conditions prevailing in this month.

Among the monofacial technologies, passivated emitter rear contact (PERC) products remain the winner, as shown in the middle graph on p. 61 to the right, which depicts the different relative energy yields grouped by technology type.

George Touloupas

Table 2

Total
June
Wh/Wp

Total
July
Wh/Wp

Total
August
Wh/Wp

Total
September
Wh/Wp

Cumulative Wh/Wp

Average monthly yield

115.0

116.6

144.6

99.6

475.8

Average monthly bifacial yield

119.6

121.2

151.3

103.2

495.4

Average monthly monofacial yield

114.2

115.8

143.4

98.9

472.3

Average bifacial boost

4.8%

4.7%

5.5%

4.3%

4.9%

Operation days

27

27

31

30

115

Average daily yield

4.26

4.32

4.67

3.32

Average daily bifacial yield

4.43

4.49

4.88

3.44

Average daily monofacial yield

4.23

4.29

4.63

3.30

 

 

Table 1

Product

#

Product

Type

Total
June
Wh/Wp

Total
July
Wh/Wp

Total
August
Wh/Wp

Total
September
Wh/Wp

Grand
Total
Wh/Wp

June rank

July rank

August rank

September rank

Cumulative rank

17

NSP D6L310L3A

Bifacial mono PERC

120.0

121.4

151.7

103.6

496.7

1

1

1

1

1

1

Jolywood JW-D60N-305

Bifacial n-PERT

119.3

121.0

151.0

102.7

494.0

2

2

2

2

2

10

Recom RCM-275-6MB-4-BB21

Mono

113.8

115.3

145.4

99.5

474.0

8

8

5

6

7

13

Sample A 285

Mono

111.5

112.6

133.6

98.9

456.6

13

13

13

8

13

8

Aiduo AD280-60S

Mono

114.2

115.7

139.4

98.8

468.0

6

6

12

10

11

4

Perlight PLM-300M-60

Mono PERC

115.2

116.1

145.2

98.8

475.2

5

5

6

9

5

7

Longi LR6-60PE-310M 1

Mono PERC

116.9

119.0

148.7

100.6

485.1

4

4

3

4

3

12

NSP D6LM305E3A

Mono PERC

113.6

114.2

142.9

97.3

467.9

9

12

10

12

12

14

Sample B 300

Mono PERC

114.1

115.2

144.8

96.8

471.0

7

9

8

13

9

16

Longi LR6-60PE-310M 2

Mono PERC

117.9

119.2

142.6

101.4

481.2

3

3

11

3

4

3

Risen RSM60-6-270P

Multi

112.5

115.2

145.0

99.4

472.1

12

10

7

7

8

9

Aiduo AD265-60P

Multi

113.5

115.1

143.7

97.5

469.8

10

11

9

11

10

2

Phono MWT-60-280

Multi MWT

112.9

115.6

146.1

99.5

474.2

 

11

 

7

4

 

5

 

6