Longi Solar LR5-72HPH-565M vs Longi Solar LR5-72HPH-555M
VS
The verdict
565M leads on the differences that matter
The largest is module efficiency: 0.40 pp more efficient. 16 of 19 comparable parameters are identical.
See all 3 differencesHow alike are they
16
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
3 of 19 parameters
What actually differs
Parameter
565M
555M
Difference
Module efficiency
21.90 %
21.50 %
0.40 pp more efficient
Power density
218.7 Wp/m²
214.8 Wp/m²
3.9 Wp/m² higher
Rated power
565 Wp
555 Wp
10 W more power
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 (-0.340 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
565M
18,311 kWh
555M
17,987 kWh
Lifetime gap
324 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
565M
555M
Standard test conditions
25 °C
100.0% of rated power
565 W
555 W
Cool, bright day
40 °C
94.9% of rated power
536 W
527 W
Typical summer roof
55 °C
89.8% of rated power
507 W
498 W
Hot roof
70 °C
84.7% of rated power
479 W
470 W
03
Full specification
Parameter
565M
555M
Difference
Power and efficiency
Rated power
565 Wp
555 Wp
+10 W for 565M
Module efficiency
21.90 %
21.50 %
+0.40 pp for 565M
Power density
218.7 Wp/m²
214.8 Wp/m²
+3.9 Wp/m² for 565M
Open-circuit voltage
50.30 V
49.95 V
Effectively the same
Voltage at max power
42.42 V
42.10 V
Effectively the same
Short-circuit current
14.16 A
14.04 A
Effectively the same
Current at max power
13.32 A
13.19 A
Effectively the same
Temperature
Temperature coefficient
-0.340 %/°C
-0.340 %/°C
Same
Mechanical
Dimensions
2278x1134x35 mm
2278x1134x35 mm
Same
Module area
2.583 m²
2.583 m²
Same
Weight
27.5 kg
27.5 kg
Same
Weight per kWp
48.7 kg/kWp
49.5 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
25 yrs
25 yrs
Same
Annual degradation
0.55 %/yr
0.55 %/yr
Same
Technology
Cell technology
PERC
PERC
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
144
Same
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#6,783
vs
#7,958
565M leads by 1,175 places
Power density
#6,841
vs
#8,034
565M leads by 1,193 places
Heat behaviour
#8,778
vs
#8,778
Tied - the same position in the database
Weight
#2,406
vs
#3,116
565M leads by 710 places
Warranty
#9,798
vs
#9,798
Tied - the same position in the database
Overall
#6,649
vs
#7,542
565M leads by 893 places
05
Open the full database
More useful comparisons
Same series, other bin
Longi Solar LR5-72HPH-565M vs Longi Solar LR5-72HPH-560M
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Same series, other bin
Longi Solar LR5-72HPH-565M vs Longi Solar LR5-72HPH-550M
3 differences, the largest is module efficiency
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Longi Solar LR5-72HPH-565M vs Longi Solar LR5-72HPH-545M
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Longi Solar LR5-72HPH-565M vs Longi Solar LR5-66HPH-515M
8 differences, the largest is rated power
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Longi Solar LR5-72HPH-565M vs Longi Solar LR5-66HPH-510M
9 differences, the largest is rated power
Same series, other bin
Longi Solar LR5-72HPH-565M vs Longi Solar LR5-54HPH-425M
7 differences, the largest is rated power
06
Written summary
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07
Questions about this pairing
Which panel is better: Longi Solar LR5-72HPH-565M or Longi Solar LR5-72HPH-555M?
According to our database: Longi Solar LR5-72HPH-565M has higher module efficiency (21.90% vs 21.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Longi Solar LR5-72HPH-565M and Longi Solar LR5-72HPH-555M?
Longi Solar LR5-72HPH-565M has a module efficiency of 21.90%, while Longi Solar LR5-72HPH-555M is 21.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Longi Solar LR5-72HPH-565M use vs Longi Solar LR5-72HPH-555M?
Longi Solar LR5-72HPH-565M uses PERC cells; Longi Solar LR5-72HPH-555M uses PERC. 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 LR5-72HPH-565M and Longi Solar LR5-72HPH-555M?
Longi Solar LR5-72HPH-565M has a 25 years power warranty; Longi Solar LR5-72HPH-555M 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.
Shop prices: See 147 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.