Tongwei TNC M10-72 Monofacial vs Tongwei TWMNF-66HD725
VS
The verdict
TWMNF-66HD725 leads on the differences that matter
The largest is rated power: 130 W more power. 7 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See all 11 differencesHow alike are they
7
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
11 of 18 parameters
What actually differs
Parameter
TNC M10-72 Monofacial
TWMNF-66HD725
Difference
Rated power
595 Wp
725 Wp
130 W more power
Weight
31.5 kg
37.9 kg
6.4 kg lighter
Short-circuit current
14.15 A
18.60 A
4.45 A apart
Module area
2.583 m²
3.106 m²
0.523 m² apart
Module efficiency
23.00 %
23.30 %
0.30 pp more efficient
Open-circuit voltage
53.20 V
49.45 V
3.75 V apart
Power density
230.3 Wp/m²
233.4 Wp/m²
3.1 Wp/m² higher
Current at max power
13.40 A
17.60 A
4.20 A apart
Voltage at max power
44.41 V
41.20 V
3.21 V apart
Bifacial
No
Yes
No vs Yes
Dimensions
2278x1134 mm
2384x1303x33 mm
2278x1134 mm vs 2384x1303x33 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
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
TWMNF-66HD725
24,325 kWh
Lifetime gap
4,362 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
TNC M10-72 Monofacial
TWMNF-66HD725
Standard test conditions
25 °C
100.0% of rated power
595 W
725 W
Cool, bright day
40 °C
95.8% of rated power
570 W
695 W
Typical summer roof
55 °C
91.6% of rated power
545 W
664 W
Hot roof
70 °C
87.4% of rated power
520 W
634 W
03
Full specification
Parameter
TNC M10-72 Monofacial
TWMNF-66HD725
Difference
Power and efficiency
Rated power
595 Wp
725 Wp
+130 W for TWMNF-66HD725
Module efficiency
23.00 %
23.30 %
+0.30 pp for TWMNF-66HD725
Power density
230.3 Wp/m²
233.4 Wp/m²
+3.1 Wp/m² for TWMNF-66HD725
Open-circuit voltage
53.20 V
49.45 V
3.75 V apart
Voltage at max power
44.41 V
41.20 V
3.21 V apart
Short-circuit current
14.15 A
18.60 A
4.45 A apart
Current at max power
13.40 A
17.60 A
4.20 A apart
Temperature
Temperature coefficient
-0.280 %/°C
-0.280 %/°C
Same
Mechanical
Dimensions
2278x1134 mm
2384x1303x33 mm
2278x1134 mm vs 2384x1303x33 mm
Module area
2.583 m²
3.106 m²
0.523 m² apart
Weight
31.5 kg
37.9 kg
-6.4 kg for TNC M10-72 Monofacial
Weight per kWp
52.9 kg/kWp
52.3 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
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
-
132
Not published by Tongwei
Bifacial
No
Yes
No vs Yes
04
14,129 panels
Against the whole database
Efficiency
#1,970
vs
#1,057
TWMNF-66HD725 leads by 913 places
Power density
#1,809
vs
#974
TWMNF-66HD725 leads by 835 places
Heat behaviour
#1,347
vs
#1,347
Tied - the same position in the database
Weight
#6,715
vs
#5,799
TWMNF-66HD725 leads by 916 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#3,400
vs
#431
TWMNF-66HD725 leads by 2,969 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 TNC M10-72 Monofacial or Tongwei TWMNF-66HD725?
According to our database: Tongwei TWMNF-66HD725 has higher module efficiency (23.30% 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 TWMNF-66HD725?
Tongwei TNC M10-72 Monofacial has a module efficiency of 23.00%, while Tongwei TWMNF-66HD725 is 23.30%. 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 TWMNF-66HD725?
Tongwei TNC M10-72 Monofacial uses TOPCon cells; Tongwei TWMNF-66HD725 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 TWMNF-66HD725?
Tongwei TNC M10-72 Monofacial has a 30 years power warranty; Tongwei TWMNF-66HD725 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 TWMNF-66HD725 bifacial panels?
Tongwei TWMNF-66HD725 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.