Jolywood JW-HD108N-415 vs Tongwei TWMND-72 HD575
VS
The verdict
TWMND-72 HD575 leads on the differences that matter
The largest is module efficiency: 1.05 pp more efficient. 7 of 19 comparable parameters are identical.
See all 12 differencesHow alike are they
7
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
12 of 19 parameters
What actually differs
Parameter
JW-HD108N-415
TWMND-72 HD575
Difference
Module efficiency
21.25 %
22.30 %
1.05 pp more efficient
Rated power
415 Wp
575 Wp
160 W more power
Power density
212.5 Wp/m²
222.6 Wp/m²
10.1 Wp/m² higher
Weight
24.5 kg
31.5 kg
7.0 kg lighter
Product warranty
25 yrs
12 yrs
13 yrs longer
Temperature coefficient
-0.300 %/°C
-0.280 %/°C
0.020 %/°C better in heat
Open-circuit voltage
37.70 V
52.10 V
14.40 V apart
Module area
1.953 m²
2.583 m²
0.631 m² apart
Weight per kWp
59.0 kg/kWp
54.8 kg/kWp
4.3 kg/kWp lighter
Voltage at max power
31.70 V
43.76 V
12.06 V apart
Cell count
108
144
36 cells apart
Dimensions
1722x1134x30 mm
2278x1134x30 mm
1722x1134x30 mm vs 2278x1134x30 mm
02
What it means on a roof
Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
JW-HD108N-415
13,924 kWh
TWMND-72 HD575
19,292 kWh
Lifetime gap
5,368 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
JW-HD108N-415
TWMND-72 HD575
Standard test conditions
25 °C
100.0% of rated power
415 W
575 W
Cool, bright day
40 °C
95.5% of rated power
396 W
551 W
Typical summer roof
55 °C
91.0% of rated power
378 W
527 W
Hot roof
70 °C
86.5% of rated power
359 W
503 W
03
Full specification
Parameter
JW-HD108N-415
TWMND-72 HD575
Difference
Power and efficiency
Rated power
415 Wp
575 Wp
+160 W for TWMND-72 HD575
Module efficiency
21.25 %
22.30 %
+1.05 pp for TWMND-72 HD575
Power density
212.5 Wp/m²
222.6 Wp/m²
+10.1 Wp/m² for TWMND-72 HD575
Open-circuit voltage
37.70 V
52.10 V
14.40 V apart
Voltage at max power
31.70 V
43.76 V
12.06 V apart
Short-circuit current
13.91 A
13.80 A
Effectively the same
Current at max power
13.10 A
13.14 A
Effectively the same
Temperature
Temperature coefficient
-0.300 %/°C
-0.280 %/°C
+0.020 %/°C for TWMND-72 HD575
Mechanical
Dimensions
1722x1134x30 mm
2278x1134x30 mm
1722x1134x30 mm vs 2278x1134x30 mm
Module area
1.953 m²
2.583 m²
0.631 m² apart
Weight
24.5 kg
31.5 kg
-7.0 kg for JW-HD108N-415
Weight per kWp
59.0 kg/kWp
54.8 kg/kWp
-4.3 kg/kWp for TWMND-72 HD575
Warranty and degradation
Product warranty
25 yrs
12 yrs
+13 yrs for JW-HD108N-415
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.40 %/yr
0.40 %/yr
Same
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
108
144
36 cells apart
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#8,973
vs
#5,161
TWMND-72 HD575 leads by 3,812 places
Power density
#8,858
vs
#5,612
TWMND-72 HD575 leads by 3,246 places
Heat behaviour
#6,152
vs
#1,347
TWMND-72 HD575 leads by 4,805 places
Weight
#12,081
vs
#9,257
TWMND-72 HD575 leads by 2,824 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#9,171
vs
#4,927
TWMND-72 HD575 leads by 4,244 places
05
Open the full database
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12 differences, the largest is module efficiency
06
Written summary
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07
Questions about this pairing
Which panel is better: Jolywood JW-HD108N-415 or Tongwei TWMND-72 HD575?
According to our database: Tongwei TWMND-72 HD575 has higher module efficiency (22.30% vs 21.25%); Tongwei TWMND-72 HD575 tolerates heat better (temp coeff -0.280%/°C vs -0.300%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jolywood JW-HD108N-415 and Tongwei TWMND-72 HD575?
Jolywood JW-HD108N-415 has a module efficiency of 21.25%, while Tongwei TWMND-72 HD575 is 22.30%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jolywood JW-HD108N-415 use vs Tongwei TWMND-72 HD575?
Jolywood JW-HD108N-415 uses TOPCon cells; Tongwei TWMND-72 HD575 uses TOPCon. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.
What is the warranty on Jolywood JW-HD108N-415 and Tongwei TWMND-72 HD575?
Jolywood JW-HD108N-415 has a 30 years power warranty; Tongwei TWMND-72 HD575 has a 30 years power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80-87%). Product (materials) warranties are usually shorter.
Are Jolywood JW-HD108N-415 and Tongwei TWMND-72 HD575 bifacial panels?
Both Jolywood JW-HD108N-415 and Tongwei TWMND-72 HD575 are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.
Shop prices: See 24 Jolywood offers · See 56 Tongwei offers
Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate. The thirty-year projection and the temperature scenarios are calculations from those figures, and each states its assumption above.