JA Solar JAT60S41-515/LR vs JA Solar JAT60S41-520/LR
VS
The verdict
520/LR leads on the differences that matter
The largest is module efficiency: 0.20 pp more efficient. 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
515/LR
520/LR
Difference
Module efficiency
23.30 %
23.50 %
0.20 pp more efficient
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 (-0.260 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
515/LR
17,414 kWh
520/LR
17,583 kWh
Lifetime gap
169 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
515/LR
520/LR
Standard test conditions
25 °C
100.0% of rated power
515 W
520 W
Cool, bright day
40 °C
96.1% of rated power
495 W
500 W
Typical summer roof
55 °C
92.2% of rated power
475 W
479 W
Hot roof
70 °C
88.3% of rated power
455 W
459 W
03
Full specification
Parameter
515/LR
520/LR
Difference
Power and efficiency
Rated power
515 Wp
520 Wp
Effectively the same
Module efficiency
23.30 %
23.50 %
+0.20 pp for 520/LR
Power density
232.5 Wp/m²
234.8 Wp/m²
Effectively the same
Open-circuit voltage
45.48 V
45.54 V
Effectively the same
Voltage at max power
38.56 V
38.67 V
Effectively the same
Short-circuit current
14.72 A
14.78 A
Effectively the same
Current at max power
13.36 A
13.45 A
Effectively the same
Temperature
Temperature coefficient
-0.260 %/°C
-0.260 %/°C
Same
Mechanical
Dimensions
1953x1134x30 mm
1953x1134x30 mm
Same
Module area
2.215 m²
2.215 m²
Same
Weight
23.5 kg
23.5 kg
Same
Weight per kWp
45.6 kg/kWp
45.2 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
25 yrs
25 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.35 %/yr
0.35 %/yr
Same
Technology
Cell technology
N-type
N-type
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
120
120
Same
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#1,017
vs
#716
520/LR leads by 301 places
Power density
#1,220
vs
#851
520/LR leads by 369 places
Heat behaviour
#511
vs
#511
Tied - the same position in the database
Weight
#789
vs
#635
520/LR leads by 154 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#2,940
vs
#2,566
520/LR leads by 374 places
05
Open the full database
More useful comparisons
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JA Solar JAT60S41-515/LR vs JA Solar JAT60S40-540/LR
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JA Solar JAT60S41-515/LR vs JA Solar JAT60S40-535/LR
4 differences, the largest is module efficiency
Same series, other bin
JA Solar JAT60S41-515/LR vs JA Solar JAT60S41-530/LR
3 differences, the largest is module efficiency
Same series, other bin
JA Solar JAT60S41-515/LR vs JA Solar JAT60S40-530/LR
4 differences, the largest is module efficiency
Same series, other bin
JA Solar JAT60S41-515/LR vs JA Solar JAT60S41-525/LR
3 differences, the largest is module efficiency
Same series, other bin
JA Solar JAT60S41-515/LR vs JA Solar JAT60S40-525/LR
4 differences, the largest is product warranty
06
Written summary
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07
Questions about this pairing
Which panel is better: JA Solar JAT60S41-515/LR or JA Solar JAT60S41-520/LR?
According to our database: JA Solar JAT60S41-520/LR has higher module efficiency (23.50% vs 23.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of JA Solar JAT60S41-515/LR and JA Solar JAT60S41-520/LR?
JA Solar JAT60S41-515/LR has a module efficiency of 23.30%, while JA Solar JAT60S41-520/LR is 23.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does JA Solar JAT60S41-515/LR use vs JA Solar JAT60S41-520/LR?
JA Solar JAT60S41-515/LR uses N-type cells; JA Solar JAT60S41-520/LR 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 JA Solar JAT60S41-515/LR and JA Solar JAT60S41-520/LR?
JA Solar JAT60S41-515/LR has a 30 years power warranty; JA Solar JAT60S41-520/LR 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.
Shop prices: See 348 JA 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.