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LR5-72HBD-540M vs LR7-72HVD-655M 4 of 18 identical Swap Change panels

Longi Solar LR5-72HBD-540M vs Longi Solar LR7-72HVD-655M

Longi Solar LR5-72HBD-540M
LR5-72HBD-540M
540 Wp 20.90 % Bifacial
Open panel page Datasheet PDF
VS
Longi Solar LR7-72HVD-655M
LR7-72HVD-655M
655 Wp 24.20 % N-type Bifacial
Open panel page Datasheet PDF
The verdict

LR7-72HVD-655M leads on the differences that matter

The largest is module efficiency: 3.30 pp more efficient. 4 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 14 differences
How alike are they
4 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

14 of 18 parameters
Parameter LR5-72HBD-540M LR7-72HVD-655M Difference
Module efficiency 20.90 % 24.20 % 3.30 pp more efficient
Temperature coefficient -0.340 %/°C -0.260 %/°C 0.080 %/°C better in heat
Rated power 540 Wp 655 Wp 115 W more power
Power density 209.0 Wp/m² 242.5 Wp/m² 33.4 Wp/m² higher
Weight per kWp 58.9 kg/kWp 51.1 kg/kWp 7.7 kg/kWp lighter
Product warranty 12 yrs 15 yrs 3 yrs longer
Annual degradation 0.45 %/yr 0.35 %/yr 0.10 %/yr slower
Open-circuit voltage 49.50 V 54.32 V 4.82 V apart
Module area 2.583 m² 2.701 m² 0.118 m² apart
Short-circuit current 13.85 A 15.22 A 1.37 A apart
Weight 31.8 kg 33.5 kg 1.7 kg lighter
Voltage at max power 41.65 V 44.97 V 3.32 V apart
Current at max power 12.97 A 14.57 A 1.60 A apart
Dimensions 2278x1134x30 mm 2382x1134x30 mm 2278x1134x30 mm vs 2382x1134x30 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
LR5-72HBD-540M
17,783 kWh
LR7-72HVD-655M
22,148 kWh
Lifetime gap
4,365 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario LR5-72HBD-540M LR7-72HVD-655M
Standard test conditions 25 °C 100.0% of rated power 540 W 655 W
Cool, bright day 40 °C 94.9% of rated power 512 W 629 W
Typical summer roof 55 °C 89.8% of rated power 485 W 604 W
Hot roof 70 °C 84.7% of rated power 457 W 578 W
03

Full specification

Parameter LR5-72HBD-540M LR7-72HVD-655M Difference
Power and efficiency
Rated power 540 Wp 655 Wp +115 W for LR7-72HVD-655M
Module efficiency 20.90 % 24.20 % +3.30 pp for LR7-72HVD-655M
Power density 209.0 Wp/m² 242.5 Wp/m² +33.4 Wp/m² for LR7-72HVD-655M
Open-circuit voltage 49.50 V 54.32 V 4.82 V apart
Voltage at max power 41.65 V 44.97 V 3.32 V apart
Short-circuit current 13.85 A 15.22 A 1.37 A apart
Current at max power 12.97 A 14.57 A 1.60 A apart
Temperature
Temperature coefficient -0.340 %/°C -0.260 %/°C +0.080 %/°C for LR7-72HVD-655M
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 33.5 kg -1.7 kg for LR5-72HBD-540M
Weight per kWp 58.9 kg/kWp 51.1 kg/kWp -7.7 kg/kWp for LR7-72HVD-655M
Warranty and degradation
Product warranty 12 yrs 15 yrs +3 yrs for LR7-72HVD-655M
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.45 %/yr 0.35 %/yr -0.10 %/yr for LR7-72HVD-655M
Technology
Cell technology - N-type Not published by Longi Solar
Cell type Monocrystalline Monocrystalline Same
Cell count 144 144 Same
Bifacial Yes Yes Same
04

Against the whole database

14,129 panels
Efficiency
#10,148 vs #206
LR7-72HVD-655M leads by 9,942 places
Power density
#10,176 vs #192
LR7-72HVD-655M leads by 9,984 places
Heat behaviour
#8,846 vs #515
LR7-72HVD-655M leads by 8,331 places
Weight
#12,026 vs #4,527
LR7-72HVD-655M leads by 7,499 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#7,953 vs #759
LR7-72HVD-655M leads by 7,194 places
05

More useful comparisons

Open the full database
Same series, other bin
Longi Solar LR5-72HBD-540M vs Longi Solar LR7-72HVDF-655M
14 differences, the largest is module efficiency
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Longi Solar LR5-72HBD-540M vs Longi Solar LR7-72HVHF-655M
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Longi Solar LR5-72HBD-540M vs Longi Solar LR8-66HVD-655M
13 differences, the largest is module efficiency
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Longi Solar LR5-72HBD-540M vs Longi Solar LR8-66HYD-655M
12 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR5-72HBD-540M vs Longi Solar LR7-72HYD-655M
13 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR5-72HBD-540M vs Longi Solar LR7-72HVH-655M
15 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Longi Solar LR5-72HBD-540M or Longi Solar LR7-72HVD-655M?
According to our database: Longi Solar LR7-72HVD-655M has higher module efficiency (24.20% vs 20.90%); Longi Solar LR7-72HVD-655M tolerates heat better (temp coeff -0.260%/°C vs -0.340%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Longi Solar LR5-72HBD-540M and Longi Solar LR7-72HVD-655M?
Longi Solar LR5-72HBD-540M has a module efficiency of 20.90%, while Longi Solar LR7-72HVD-655M is 24.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Longi Solar LR5-72HBD-540M use vs Longi Solar LR7-72HVD-655M?
Longi Solar LR5-72HBD-540M uses Monocrystalline cells; Longi Solar LR7-72HVD-655M 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 LR5-72HBD-540M and Longi Solar LR7-72HVD-655M?
Longi Solar LR5-72HBD-540M has a 30 years power warranty; Longi Solar LR7-72HVD-655M 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 Longi Solar LR5-72HBD-540M and Longi Solar LR7-72HVD-655M bifacial panels?
Both Longi Solar LR5-72HBD-540M and Longi Solar LR7-72HVD-655M 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.

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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.