Longi Solar LR5-72HTD-585M vs Longi Solar LR7-72HTH-615M
VS
The verdict
LR7-72HTH-615M leads on the differences that matter
The largest is performance warranty: 5 yrs longer. 8 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See all 10 differencesHow alike are they
8
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
10 of 18 parameters
What actually differs
Parameter
LR5-72HTD-585M
LR7-72HTH-615M
Difference
Performance warranty
30 yrs
25 yrs
5 yrs longer
Rated power
585 Wp
615 Wp
30 W more power
Weight per kWp
54.4 kg/kWp
46.3 kg/kWp
8.0 kg/kWp lighter
Weight
31.8 kg
28.5 kg
3.3 kg lighter
Module area
2.583 m²
2.701 m²
0.118 m² apart
Module efficiency
22.60 %
22.80 %
0.20 pp more efficient
Bifacial
Yes
No
Yes vs No
Short-circuit current
14.19 A
14.87 A
0.68 A apart
Dimensions
2278x1134x30 mm
2382x1134x30 mm
2278x1134x30 mm vs 2382x1134x30 mm
Current at max power
13.30 A
13.88 A
0.58 A 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.
LR5-72HTD-585M
19,523 kWh
LR7-72HTH-615M
20,634 kWh
Lifetime gap
1,111 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
LR5-72HTD-585M
LR7-72HTH-615M
Standard test conditions
25 °C
100.0% of rated power
585 W
615 W
Cool, bright day
40 °C
95.8% of rated power
560 W
589 W
Typical summer roof
55 °C
91.6% of rated power
536 W
563 W
Hot roof
70 °C
87.4% of rated power
511 W
538 W
03
Full specification
Parameter
LR5-72HTD-585M
LR7-72HTH-615M
Difference
Power and efficiency
Rated power
585 Wp
615 Wp
+30 W for LR7-72HTH-615M
Module efficiency
22.60 %
22.80 %
+0.20 pp for LR7-72HTH-615M
Power density
226.5 Wp/m²
227.7 Wp/m²
Effectively the same
Open-circuit voltage
52.45 V
52.57 V
Effectively the same
Voltage at max power
44.00 V
44.33 V
Effectively the same
Short-circuit current
14.19 A
14.87 A
0.68 A apart
Current at max power
13.30 A
13.88 A
0.58 A apart
Temperature
Temperature coefficient
-0.280 %/°C
-0.280 %/°C
Same
Mechanical
Dimensions
2278x1134x30 mm
2382x1134x30 mm
2278x1134x30 mm vs 2382x1134x30 mm
Module area
2.583 m²
2.701 m²
0.118 m² apart
Weight
31.8 kg
28.5 kg
-3.3 kg for LR7-72HTH-615M
Weight per kWp
54.4 kg/kWp
46.3 kg/kWp
-8.0 kg/kWp for LR7-72HTH-615M
Warranty and degradation
Product warranty
15 yrs
15 yrs
Same
Performance warranty
30 yrs
25 yrs
+5 yrs for LR5-72HTD-585M
Annual degradation
0.40 %/yr
0.40 %/yr
Same
Technology
Cell technology
-
N-type
Not published by Longi Solar
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
144
Same
Bifacial
Yes
No
Yes vs No
04
14,129 panels
Against the whole database
Efficiency
#3,716
vs
#2,769
LR7-72HTH-615M leads by 947 places
Power density
#3,557
vs
#3,132
LR7-72HTH-615M leads by 425 places
Heat behaviour
#1,347
vs
#1,347
Tied - the same position in the database
Weight
#8,749
vs
#1,120
LR7-72HTH-615M leads by 7,629 places
Warranty
#21
vs
#9,912
LR5-72HTD-585M leads by 9,891 places
Overall
#3,633
vs
#3,260
LR7-72HTH-615M leads by 373 places
05
Open the full database
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The same specification on paper
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06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Longi Solar LR5-72HTD-585M or Longi Solar LR7-72HTH-615M?
According to our database: Longi Solar LR7-72HTH-615M has higher module efficiency (22.80% vs 22.60%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Longi Solar LR5-72HTD-585M and Longi Solar LR7-72HTH-615M?
Longi Solar LR5-72HTD-585M has a module efficiency of 22.60%, while Longi Solar LR7-72HTH-615M is 22.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Longi Solar LR5-72HTD-585M use vs Longi Solar LR7-72HTH-615M?
Longi Solar LR5-72HTD-585M uses Monocrystalline cells; Longi Solar LR7-72HTH-615M 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 Longi Solar LR5-72HTD-585M and Longi Solar LR7-72HTH-615M?
Longi Solar LR5-72HTD-585M has a 30 years power warranty; Longi Solar LR7-72HTH-615M has a 25 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 Longi Solar LR5-72HTD-585M and Longi Solar LR7-72HTH-615M bifacial panels?
Longi Solar LR5-72HTD-585M is bifacial (captures light from both faces); Longi Solar LR7-72HTH-615M is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Shop prices: See 157 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.