Tongwei TNC M10-72 Monofacial vs Tongwei TWMNH-66HS
VS
The verdict
TWMNH-66HS leads on the differences that matter
The largest is rated power: 30 W more power. 6 of 17 comparable parameters are identical, with 2 more left out because at least one datasheet does not publish them.
See all 11 differencesHow alike are they
6
of 17 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
11 of 17 parameters
What actually differs
Parameter
TNC M10-72 Monofacial
TWMNH-66HS
Difference
Rated power
595 Wp
625 Wp
30 W more power
Weight per kWp
52.9 kg/kWp
46.4 kg/kWp
6.5 kg/kWp lighter
Product warranty
12 yrs
15 yrs
3 yrs longer
Module area
2.583 m²
2.701 m²
0.118 m² apart
Short-circuit current
14.15 A
16.14 A
1.99 A apart
Open-circuit voltage
53.20 V
49.25 V
3.95 V apart
Weight
31.5 kg
29.0 kg
2.5 kg lighter
Current at max power
13.40 A
15.33 A
1.93 A apart
Voltage at max power
44.41 V
40.77 V
3.64 V apart
Bifacial
No
Yes
No vs Yes
Dimensions
2278x1134 mm
2382x1134x30 mm
2278x1134 mm vs 2382x1134x30 mm
02
What it means on a roof
Thirty years of production
A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.280 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
TNC M10-72 Monofacial
19,963 kWh
TWMNH-66HS
20,970 kWh
Lifetime gap
1,007 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
TNC M10-72 Monofacial
TWMNH-66HS
Standard test conditions
25 °C
100.0% of rated power
595 W
625 W
Cool, bright day
40 °C
95.8% of rated power
570 W
599 W
Typical summer roof
55 °C
91.6% of rated power
545 W
573 W
Hot roof
70 °C
87.4% of rated power
520 W
546 W
03
Full specification
Parameter
TNC M10-72 Monofacial
TWMNH-66HS
Difference
Power and efficiency
Rated power
595 Wp
625 Wp
+30 W for TWMNH-66HS
Module efficiency
23.00 %
23.14 %
Effectively the same
Power density
230.3 Wp/m²
231.4 Wp/m²
Effectively the same
Open-circuit voltage
53.20 V
49.25 V
3.95 V apart
Voltage at max power
44.41 V
40.77 V
3.64 V apart
Short-circuit current
14.15 A
16.14 A
1.99 A apart
Current at max power
13.40 A
15.33 A
1.93 A apart
Temperature
Temperature coefficient
-0.280 %/°C
-0.280 %/°C
Same
Mechanical
Dimensions
2278x1134 mm
2382x1134x30 mm
2278x1134 mm vs 2382x1134x30 mm
Module area
2.583 m²
2.701 m²
0.118 m² apart
Weight
31.5 kg
29.0 kg
-2.5 kg for TWMNH-66HS
Weight per kWp
52.9 kg/kWp
46.4 kg/kWp
-6.5 kg/kWp for TWMNH-66HS
Warranty and degradation
Product warranty
12 yrs
15 yrs
+3 yrs for TWMNH-66HS
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.40 %/yr
-
Not published by Tongwei
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
-
132
Not published by Tongwei
Bifacial
No
Yes
No vs Yes
04
14,129 panels
Against the whole database
Efficiency
#1,970
vs
#1,554
TWMNH-66HS leads by 416 places
Power density
#1,809
vs
#1,558
TWMNH-66HS leads by 251 places
Heat behaviour
#1,347
vs
#1,347
Tied - the same position in the database
Weight
#6,715
vs
#1,141
TWMNH-66HS leads by 5,574 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#3,400
vs
#1,809
TWMNH-66HS leads by 1,591 places
05
Open the full database
More useful comparisons
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Tongwei TNC M10-72 Monofacial vs Tongwei TWMNH-66HD
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06
Written summary
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07
Questions about this pairing
Which panel is better: Tongwei TNC M10-72 Monofacial or Tongwei TWMNH-66HS?
According to our database: Tongwei TWMNH-66HS has higher module efficiency (23.14% vs 23.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Tongwei TNC M10-72 Monofacial and Tongwei TWMNH-66HS?
Tongwei TNC M10-72 Monofacial has a module efficiency of 23.00%, while Tongwei TWMNH-66HS is 23.14%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Tongwei TNC M10-72 Monofacial use vs Tongwei TWMNH-66HS?
Tongwei TNC M10-72 Monofacial uses TOPCon cells; Tongwei TWMNH-66HS 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 TNC M10-72 Monofacial and Tongwei TWMNH-66HS?
Tongwei TNC M10-72 Monofacial has a 30 years power warranty; Tongwei TWMNH-66HS 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 TNC M10-72 Monofacial and Tongwei TWMNH-66HS bifacial panels?
Tongwei TWMNH-66HS is bifacial (captures light from both faces); Tongwei TNC M10-72 Monofacial is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Shop prices: See 58 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.