Tongwei TWMND-72HD590 vs Longi Solar LR5-72HGD-590M
VS
The verdict
One difference, none of them an advantage
The largest is open-circuit voltage: 1.07 V apart. 18 of 19 comparable parameters are identical.
See the one differenceHow alike are they
18
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
1 of 19 parameters
What actually differs
Parameter
TWMND-72HD590
LR5-72HGD-590M
Difference
Open-circuit voltage
52.70 V
51.63 V
1.07 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.
TWMND-72HD590
19,796 kWh
LR5-72HGD-590M
19,796 kWh
Lifetime gap
No difference
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
TWMND-72HD590
LR5-72HGD-590M
Standard test conditions
25 °C
100.0% of rated power
590 W
590 W
Cool, bright day
40 °C
95.8% of rated power
565 W
565 W
Typical summer roof
55 °C
91.6% of rated power
540 W
540 W
Hot roof
70 °C
87.4% of rated power
516 W
516 W
03
Full specification
Parameter
TWMND-72HD590
LR5-72HGD-590M
Difference
Power and efficiency
Rated power
590 Wp
590 Wp
Same
Module efficiency
22.80 %
22.80 %
Same
Power density
228.4 Wp/m²
228.4 Wp/m²
Same
Open-circuit voltage
52.70 V
51.63 V
1.07 V apart
Voltage at max power
44.27 V
43.44 V
Effectively the same
Short-circuit current
13.95 A
14.38 A
Effectively the same
Current at max power
13.33 A
13.59 A
Effectively the same
Temperature
Temperature coefficient
-0.280 %/°C
-0.280 %/°C
Same
Mechanical
Dimensions
2278x1134x30 mm
2278x1134x30 mm
Same
Module area
2.583 m²
2.583 m²
Same
Weight
31.5 kg
31.8 kg
Effectively the same
Weight per kWp
53.4 kg/kWp
53.9 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
N-type
N-type
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
144
Same
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#2,769
vs
#2,769
Tied - the same position in the database
Power density
#2,653
vs
#2,653
Tied - the same position in the database
Heat behaviour
#1,347
vs
#1,347
Tied - the same position in the database
Weight
#7,361
vs
#8,099
TWMND-72HD590 leads by 738 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#3,836
vs
#3,852
TWMND-72HD590 leads by 16 places
05
Open the full database
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14 differences, the largest is module efficiency
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Tongwei TWMND-72HD590 or Longi Solar LR5-72HGD-590M?
According to our database: both panels are closely matched on key specs - the decision often comes down to price and local availability. See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Tongwei TWMND-72HD590 and Longi Solar LR5-72HGD-590M?
Tongwei TWMND-72HD590 has a module efficiency of 22.80%, while Longi Solar LR5-72HGD-590M is 22.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Tongwei TWMND-72HD590 use vs Longi Solar LR5-72HGD-590M?
Tongwei TWMND-72HD590 uses N-type cells; Longi Solar LR5-72HGD-590M uses N-type. 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-72HD590 and Longi Solar LR5-72HGD-590M?
Tongwei TWMND-72HD590 has a 30 years power warranty; Longi Solar LR5-72HGD-590M 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-72HD590 and Longi Solar LR5-72HGD-590M bifacial panels?
Both Tongwei TWMND-72HD590 and Longi Solar LR5-72HGD-590M 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 158 Longi Solar 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.