Tongwei TWMNF-66HD745 vs Tongwei TWMNH-66HD610
VS
The verdict
TWMNF-66HD745 leads on the differences that matter
The largest is module efficiency: 1.40 pp more efficient. 8 of 19 comparable parameters are identical.
See all 11 differencesHow alike are they
8
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
11 of 19 parameters
What actually differs
Parameter
TWMNF-66HD745
TWMNH-66HD610
Difference
Module efficiency
24.00 %
22.60 %
1.40 pp more efficient
Rated power
745 Wp
610 Wp
135 W more power
Power density
239.8 Wp/m²
225.8 Wp/m²
14.0 Wp/m² higher
Weight
37.3 kg
32.5 kg
4.8 kg lighter
Short-circuit current
18.87 A
15.94 A
2.93 A apart
Module area
3.106 m²
2.701 m²
0.405 m² apart
Weight per kWp
50.1 kg/kWp
53.3 kg/kWp
3.2 kg/kWp lighter
Current at max power
17.80 A
15.07 A
2.73 A apart
Open-circuit voltage
49.95 V
48.70 V
1.25 V apart
Dimensions
2384x1303x33 mm
2382x1134x30 mm
2384x1303x33 mm vs 2382x1134x30 mm
Voltage at max power
41.86 V
40.48 V
1.38 V apart
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.
TWMNF-66HD745
24,996 kWh
TWMNH-66HD610
20,467 kWh
Lifetime gap
4,529 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
TWMNF-66HD745
TWMNH-66HD610
Standard test conditions
25 °C
100.0% of rated power
745 W
610 W
Cool, bright day
40 °C
95.8% of rated power
714 W
584 W
Typical summer roof
55 °C
91.6% of rated power
682 W
559 W
Hot roof
70 °C
87.4% of rated power
651 W
533 W
03
Full specification
Parameter
TWMNF-66HD745
TWMNH-66HD610
Difference
Power and efficiency
Rated power
745 Wp
610 Wp
+135 W for TWMNF-66HD745
Module efficiency
24.00 %
22.60 %
+1.40 pp for TWMNF-66HD745
Power density
239.8 Wp/m²
225.8 Wp/m²
+14.0 Wp/m² for TWMNF-66HD745
Open-circuit voltage
49.95 V
48.70 V
1.25 V apart
Voltage at max power
41.86 V
40.48 V
1.38 V apart
Short-circuit current
18.87 A
15.94 A
2.93 A apart
Current at max power
17.80 A
15.07 A
2.73 A apart
Temperature
Temperature coefficient
-0.280 %/°C
-0.280 %/°C
Same
Mechanical
Dimensions
2384x1303x33 mm
2382x1134x30 mm
2384x1303x33 mm vs 2382x1134x30 mm
Module area
3.106 m²
2.701 m²
0.405 m² apart
Weight
37.3 kg
32.5 kg
-4.8 kg for TWMNH-66HD610
Weight per kWp
50.1 kg/kWp
53.3 kg/kWp
-3.2 kg/kWp for TWMNF-66HD745
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
132
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#303
vs
#3,658
TWMNF-66HD745 leads by 3,355 places
Power density
#339
vs
#3,729
TWMNF-66HD745 leads by 3,390 places
Heat behaviour
#1,309
vs
#1,309
Tied - the same position in the database
Weight
#3,586
vs
#7,135
TWMNF-66HD745 leads by 3,549 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#148
vs
#3,278
TWMNF-66HD745 leads by 3,130 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 TWMNF-66HD745 or Tongwei TWMNH-66HD610?
According to our database: Tongwei TWMNF-66HD745 has higher module efficiency (24.00% vs 22.60%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Tongwei TWMNF-66HD745 and Tongwei TWMNH-66HD610?
Tongwei TWMNF-66HD745 has a module efficiency of 24.00%, while Tongwei TWMNH-66HD610 is 22.60%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Tongwei TWMNF-66HD745 use vs Tongwei TWMNH-66HD610?
Tongwei TWMNF-66HD745 uses TOPCon cells; Tongwei TWMNH-66HD610 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 TWMNF-66HD745 and Tongwei TWMNH-66HD610?
Tongwei TWMNF-66HD745 has a 30 years power warranty; Tongwei TWMNH-66HD610 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 TWMNF-66HD745 and Tongwei TWMNH-66HD610 bifacial panels?
Both Tongwei TWMNF-66HD745 and Tongwei TWMNH-66HD610 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 70 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.