Tongwei TWMND-72 HD575 vs Jolywood JW-HD108N-415
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
TWMND-72 HD575
JW-HD108N-415
Difference
Module efficiency
22.30 %
21.25 %
1.05 pp more efficient
Rated power
575 Wp
415 Wp
160 W more power
Power density
222.6 Wp/m²
212.5 Wp/m²
10.1 Wp/m² higher
Weight
31.5 kg
24.5 kg
7.0 kg lighter
Product warranty
12 yrs
25 yrs
13 yrs longer
Temperature coefficient
-0.280 %/°C
-0.300 %/°C
0.020 %/°C better in heat
Open-circuit voltage
52.10 V
37.70 V
14.40 V apart
Module area
2.583 m²
1.953 m²
0.631 m² apart
Weight per kWp
54.8 kg/kWp
59.0 kg/kWp
4.3 kg/kWp lighter
Voltage at max power
43.76 V
31.70 V
12.06 V apart
Cell count
144
108
36 cells apart
Dimensions
2278x1134x30 mm
1722x1134x30 mm
2278x1134x30 mm vs 1722x1134x30 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
TWMND-72 HD575
19,292 kWh
JW-HD108N-415
13,924 kWh
Lifetime gap
5,368 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
TWMND-72 HD575
JW-HD108N-415
Standard test conditions
25 °C
100.0% of rated power
575 W
415 W
Cool, bright day
40 °C
95.5% of rated power
551 W
396 W
Typical summer roof
55 °C
91.0% of rated power
527 W
378 W
Hot roof
70 °C
86.5% of rated power
503 W
359 W
03
Full specification
Parameter
TWMND-72 HD575
JW-HD108N-415
Difference
Power and efficiency
Rated power
575 Wp
415 Wp
+160 W for TWMND-72 HD575
Module efficiency
22.30 %
21.25 %
+1.05 pp for TWMND-72 HD575
Power density
222.6 Wp/m²
212.5 Wp/m²
+10.1 Wp/m² for TWMND-72 HD575
Open-circuit voltage
52.10 V
37.70 V
14.40 V apart
Voltage at max power
43.76 V
31.70 V
12.06 V apart
Short-circuit current
13.80 A
13.91 A
Effectively the same
Current at max power
13.14 A
13.10 A
Effectively the same
Temperature
Temperature coefficient
-0.280 %/°C
-0.300 %/°C
+0.020 %/°C for TWMND-72 HD575
Mechanical
Dimensions
2278x1134x30 mm
1722x1134x30 mm
2278x1134x30 mm vs 1722x1134x30 mm
Module area
2.583 m²
1.953 m²
0.631 m² apart
Weight
31.5 kg
24.5 kg
-7.0 kg for JW-HD108N-415
Weight per kWp
54.8 kg/kWp
59.0 kg/kWp
-4.3 kg/kWp for TWMND-72 HD575
Warranty and degradation
Product warranty
12 yrs
25 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
144
108
36 cells apart
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#5,161
vs
#8,973
TWMND-72 HD575 leads by 3,812 places
Power density
#5,612
vs
#8,858
TWMND-72 HD575 leads by 3,246 places
Heat behaviour
#1,347
vs
#6,152
TWMND-72 HD575 leads by 4,805 places
Weight
#9,257
vs
#12,081
TWMND-72 HD575 leads by 2,824 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#4,927
vs
#9,171
TWMND-72 HD575 leads by 4,244 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Tongwei TWMND-72 HD575 or Jolywood JW-HD108N-415?
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 Tongwei TWMND-72 HD575 and Jolywood JW-HD108N-415?
Tongwei TWMND-72 HD575 has a module efficiency of 22.30%, while Jolywood JW-HD108N-415 is 21.25%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Tongwei TWMND-72 HD575 use vs Jolywood JW-HD108N-415?
Tongwei TWMND-72 HD575 uses TOPCon cells; Jolywood JW-HD108N-415 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 Tongwei TWMND-72 HD575 and Jolywood JW-HD108N-415?
Tongwei TWMND-72 HD575 has a 30 years power warranty; Jolywood JW-HD108N-415 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 Tongwei TWMND-72 HD575 and Jolywood JW-HD108N-415 bifacial panels?
Both Tongwei TWMND-72 HD575 and Jolywood JW-HD108N-415 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 56 Tongwei offers · See 24 Jolywood 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.