Tongwei TWMND-72HD595 vs Tongwei TWMNF-66HD750
VS
The verdict
TWMNF-66HD750 leads on the differences that matter
The largest is module efficiency: 1.10 pp more efficient. 6 of 19 comparable parameters are identical.
See all 13 differencesHow alike are they
6
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
13 of 19 parameters
What actually differs
Parameter
TWMND-72HD595
TWMNF-66HD750
Difference
Module efficiency
23.00 %
24.10 %
1.10 pp more efficient
Rated power
595 Wp
750 Wp
155 W more power
Power density
230.3 Wp/m²
241.4 Wp/m²
11.1 Wp/m² higher
Weight
31.5 kg
37.3 kg
5.8 kg lighter
Short-circuit current
14.15 A
18.93 A
4.78 A apart
Module area
2.583 m²
3.106 m²
0.523 m² apart
Open-circuit voltage
53.00 V
50.10 V
2.90 V apart
Cell technology
N-type
TOPCon
N-type vs TOPCon
Weight per kWp
52.9 kg/kWp
49.7 kg/kWp
3.2 kg/kWp lighter
Current at max power
13.40 A
17.85 A
4.45 A apart
Cell count
144
132
12 cells apart
Voltage at max power
44.41 V
42.02 V
2.39 V apart
Dimensions
2278x1134x30 mm
2384x1303x33 mm
2278x1134x30 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.
TWMND-72HD595
19,963 kWh
TWMNF-66HD750
25,164 kWh
Lifetime gap
5,201 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
TWMND-72HD595
TWMNF-66HD750
Standard test conditions
25 °C
100.0% of rated power
595 W
750 W
Cool, bright day
40 °C
95.8% of rated power
570 W
719 W
Typical summer roof
55 °C
91.6% of rated power
545 W
687 W
Hot roof
70 °C
87.4% of rated power
520 W
656 W
03
Full specification
Parameter
TWMND-72HD595
TWMNF-66HD750
Difference
Power and efficiency
Rated power
595 Wp
750 Wp
+155 W for TWMNF-66HD750
Module efficiency
23.00 %
24.10 %
+1.10 pp for TWMNF-66HD750
Power density
230.3 Wp/m²
241.4 Wp/m²
+11.1 Wp/m² for TWMNF-66HD750
Open-circuit voltage
53.00 V
50.10 V
2.90 V apart
Voltage at max power
44.41 V
42.02 V
2.39 V apart
Short-circuit current
14.15 A
18.93 A
4.78 A apart
Current at max power
13.40 A
17.85 A
4.45 A apart
Temperature
Temperature coefficient
-0.280 %/°C
-0.280 %/°C
Same
Mechanical
Dimensions
2278x1134x30 mm
2384x1303x33 mm
2278x1134x30 mm vs 2384x1303x33 mm
Module area
2.583 m²
3.106 m²
0.523 m² apart
Weight
31.5 kg
37.3 kg
-5.8 kg for TWMND-72HD595
Weight per kWp
52.9 kg/kWp
49.7 kg/kWp
-3.2 kg/kWp for TWMNF-66HD750
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
N-type
TOPCon
N-type vs TOPCon
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
132
12 cells apart
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#1,970
vs
#241
TWMNF-66HD750 leads by 1,729 places
Power density
#1,809
vs
#241
TWMNF-66HD750 leads by 1,568 places
Heat behaviour
#1,347
vs
#1,347
Tied - the same position in the database
Weight
#6,715
vs
#3,221
TWMNF-66HD750 leads by 3,494 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#3,400
vs
#122
TWMNF-66HD750 leads by 3,278 places
05
Open the full database
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The same specification on paper
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Tongwei TWMNF-66HD750 vs Tongwei TWMNF-66HD740
3 differences, the largest is module efficiency
06
Written summary
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07
Questions about this pairing
Which panel is better: Tongwei TWMND-72HD595 or Tongwei TWMNF-66HD750?
According to our database: Tongwei TWMNF-66HD750 has higher module efficiency (24.10% vs 23.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Tongwei TWMND-72HD595 and Tongwei TWMNF-66HD750?
Tongwei TWMND-72HD595 has a module efficiency of 23.00%, while Tongwei TWMNF-66HD750 is 24.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Tongwei TWMND-72HD595 use vs Tongwei TWMNF-66HD750?
Tongwei TWMND-72HD595 uses N-type cells; Tongwei TWMNF-66HD750 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-72HD595 and Tongwei TWMNF-66HD750?
Tongwei TWMND-72HD595 has a 30 years power warranty; Tongwei TWMNF-66HD750 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-72HD595 and Tongwei TWMNF-66HD750 bifacial panels?
Both Tongwei TWMND-72HD595 and Tongwei TWMNF-66HD750 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
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.