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LR7-72HTH-615M vs LR5-54HTH-425M 5 of 18 identical Swap Change panels

Longi Solar LR7-72HTH-615M vs Longi Solar LR5-54HTH-425M

Longi Solar LR7-72HTH-615M
LR7-72HTH-615M
615 Wp 22.80 % N-type
Open panel page Datasheet PDF
VS
Longi Solar LR5-54HTH-425M
LR5-54HTH-425M
425 Wp 21.80 %
Open panel page Datasheet PDF
The verdict

LR7-72HTH-615M leads on the differences that matter

The largest is module efficiency: 1.00 pp more efficient. 5 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 13 differences
How alike are they
5 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

13 of 18 parameters
Parameter LR7-72HTH-615M LR5-54HTH-425M Difference
Module efficiency 22.80 % 21.80 % 1.00 pp more efficient
Rated power 615 Wp 425 Wp 190 W more power
Power density 227.7 Wp/m² 217.6 Wp/m² 10.0 Wp/m² higher
Weight 28.5 kg 20.8 kg 7.7 kg lighter
Open-circuit voltage 52.57 V 38.93 V 13.64 V apart
Module area 2.701 m² 1.953 m² 0.748 m² apart
Temperature coefficient -0.280 %/°C -0.290 %/°C 0.010 %/°C better in heat
Voltage at max power 44.33 V 32.64 V 11.69 V apart
Cell count 144 108 36 cells apart
Weight per kWp 46.3 kg/kWp 48.9 kg/kWp 2.6 kg/kWp lighter
Short-circuit current 14.87 A 14.07 A 0.80 A apart
Dimensions 2382x1134x30 mm 1722x1134x30 mm 2382x1134x30 mm vs 1722x1134x30 mm
Current at max power 13.88 A 13.03 A 0.85 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
LR7-72HTH-615M
20,634 kWh
LR5-54HTH-425M
14,183 kWh
Lifetime gap
6,451 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario LR7-72HTH-615M LR5-54HTH-425M
Standard test conditions 25 °C 100.0% of rated power 615 W 425 W
Cool, bright day 40 °C 95.7% of rated power 589 W 407 W
Typical summer roof 55 °C 91.3% of rated power 563 W 388 W
Hot roof 70 °C 87.0% of rated power 538 W 370 W
03

Full specification

Parameter LR7-72HTH-615M LR5-54HTH-425M Difference
Power and efficiency
Rated power 615 Wp 425 Wp +190 W for LR7-72HTH-615M
Module efficiency 22.80 % 21.80 % +1.00 pp for LR7-72HTH-615M
Power density 227.7 Wp/m² 217.6 Wp/m² +10.0 Wp/m² for LR7-72HTH-615M
Open-circuit voltage 52.57 V 38.93 V 13.64 V apart
Voltage at max power 44.33 V 32.64 V 11.69 V apart
Short-circuit current 14.87 A 14.07 A 0.80 A apart
Current at max power 13.88 A 13.03 A 0.85 A apart
Temperature
Temperature coefficient -0.280 %/°C -0.290 %/°C +0.010 %/°C for LR7-72HTH-615M
Mechanical
Dimensions 2382x1134x30 mm 1722x1134x30 mm 2382x1134x30 mm vs 1722x1134x30 mm
Module area 2.701 m² 1.953 m² 0.748 m² apart
Weight 28.5 kg 20.8 kg -7.7 kg for LR5-54HTH-425M
Weight per kWp 46.3 kg/kWp 48.9 kg/kWp -2.6 kg/kWp for LR7-72HTH-615M
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 25 yrs 25 yrs Same
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 144 108 36 cells apart
Bifacial No No Same
04

Against the whole database

14,129 panels
Efficiency
#2,769 vs #7,085
LR7-72HTH-615M leads by 4,316 places
Power density
#3,132 vs #7,235
LR7-72HTH-615M leads by 4,103 places
Heat behaviour
#1,347 vs #2,220
LR7-72HTH-615M leads by 873 places
Weight
#1,120 vs #2,630
LR7-72HTH-615M leads by 1,510 places
Warranty
#9,912 vs #9,912
Tied - the same position in the database
Overall
#3,260 vs #10,559
LR7-72HTH-615M leads by 7,299 places
05

More useful comparisons

Open the full database
Same series, other bin
Longi Solar LR7-72HTH-615M vs Longi Solar LR7-72HTH-610M
One difference: module efficiency
Same series, other bin
Longi Solar LR7-72HTH-615M vs Longi Solar LR7-72HTH-605M
3 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR5-54HTH-425M vs Longi Solar LR5-72HTD-585M
13 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR5-54HTH-425M vs Longi Solar LR5-72HTH-585M
10 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR5-54HTH-425M vs Longi Solar LR5-72HTD-580M
13 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR5-54HTH-425M vs Longi Solar LR5-72HTH-580M
10 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Longi Solar LR7-72HTH-615M or Longi Solar LR5-54HTH-425M?
According to our database: Longi Solar LR7-72HTH-615M has higher module efficiency (22.80% vs 21.80%); Longi Solar LR7-72HTH-615M tolerates heat better (temp coeff -0.280%/°C vs -0.290%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Longi Solar LR7-72HTH-615M and Longi Solar LR5-54HTH-425M?
Longi Solar LR7-72HTH-615M has a module efficiency of 22.80%, while Longi Solar LR5-54HTH-425M is 21.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Longi Solar LR7-72HTH-615M use vs Longi Solar LR5-54HTH-425M?
Longi Solar LR7-72HTH-615M uses N-type cells; Longi Solar LR5-54HTH-425M uses Monocrystalline. 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 LR7-72HTH-615M and Longi Solar LR5-54HTH-425M?
Longi Solar LR7-72HTH-615M has a 25 years power warranty; Longi Solar LR5-54HTH-425M 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 152 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.