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JKM505-54HL4M-BDV vs JKM520-54HL4M-BDV 16 of 19 identical Swap Change panels

Jinko Solar JKM505-54HL4M-BDV vs Jinko Solar JKM520-54HL4M-BDV

Jinko Solar JKM505-54HL4M-BDV
JKM505-54HL4M-BDV
505 Wp 22.71 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Jinko Solar JKM520-54HL4M-BDV
JKM520-54HL4M-BDV
520 Wp 23.38 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

JKM520-54HL4M-BDV leads on the differences that matter

The largest is module efficiency: 0.67 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs
01

What actually differs

3 of 19 parameters
Parameter JKM505-54HL4M-BDV JKM520-54HL4M-BDV Difference
Module efficiency 22.71 % 23.38 % 0.67 pp more efficient
Power density 227.1 Wp/m² 233.8 Wp/m² 6.7 Wp/m² higher
Rated power 505 Wp 520 Wp 15 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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
JKM505-54HL4M-BDV
16,944 kWh
JKM520-54HL4M-BDV
17,447 kWh
Lifetime gap
503 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JKM505-54HL4M-BDV JKM520-54HL4M-BDV
Standard test conditions 25 °C 100.0% of rated power 505 W 520 W
Cool, bright day 40 °C 95.7% of rated power 483 W 497 W
Typical summer roof 55 °C 91.3% of rated power 461 W 475 W
Hot roof 70 °C 87.0% of rated power 439 W 452 W
03

Full specification

Parameter JKM505-54HL4M-BDV JKM520-54HL4M-BDV Difference
Power and efficiency
Rated power 505 Wp 520 Wp +15 W for JKM520-54HL4M-BDV
Module efficiency 22.71 % 23.38 % +0.67 pp for JKM520-54HL4M-BDV
Power density 227.1 Wp/m² 233.8 Wp/m² +6.7 Wp/m² for JKM520-54HL4M-BDV
Open-circuit voltage 40.55 V 41.06 V Effectively the same
Voltage at max power 34.17 V 34.83 V Effectively the same
Short-circuit current 15.68 A 15.83 A Effectively the same
Current at max power 14.78 A 14.93 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1961x1134x30 mm 1961x1134x30 mm Same
Module area 2.224 m² 2.224 m² Same
Weight 27.0 kg 27.0 kg Same
Weight per kWp 53.5 kg/kWp 51.9 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 108 108 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#3,285 vs #927
JKM520-54HL4M-BDV leads by 2,358 places
Power density
#3,312 vs #909
JKM520-54HL4M-BDV leads by 2,403 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#7,409 vs #5,342
JKM520-54HL4M-BDV leads by 2,067 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,177 vs #4,850
JKM520-54HL4M-BDV leads by 1,327 places
05

More useful comparisons

Open the full database
Same series, other bin
Jinko Solar JKM505-54HL4M-BDV vs Jinko Solar JKM525-54HL4M-BDV
4 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM505-54HL4M-BDV vs Jinko Solar JKM515-54HL4M-BDV
3 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM505-54HL4M-BDV vs Jinko Solar JKM510-54HL4M-BDV
One difference: module efficiency
Same series, other bin
Jinko Solar JKM505-54HL4M-BDV vs Jinko Solar JKM500-54HL4M-BDV
One difference: module efficiency
Same series, other bin
Jinko Solar JKM505-54HL4M-BDV vs Jinko Solar JKM495-54HL4M-BDV
3 differences, the largest is module efficiency
Same manufacturer
Jinko Solar JKM505-54HL4M-BDV vs Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin)
13 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Jinko Solar JKM505-54HL4M-BDV or Jinko Solar JKM520-54HL4M-BDV?
According to our database: Jinko Solar JKM520-54HL4M-BDV has higher module efficiency (23.38% vs 22.71%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jinko Solar JKM505-54HL4M-BDV and Jinko Solar JKM520-54HL4M-BDV?
Jinko Solar JKM505-54HL4M-BDV has a module efficiency of 22.71%, while Jinko Solar JKM520-54HL4M-BDV is 23.38%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jinko Solar JKM505-54HL4M-BDV use vs Jinko Solar JKM520-54HL4M-BDV?
Jinko Solar JKM505-54HL4M-BDV uses TOPCon cells; Jinko Solar JKM520-54HL4M-BDV uses TOPCon. 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 Jinko Solar JKM505-54HL4M-BDV and Jinko Solar JKM520-54HL4M-BDV?
Jinko Solar JKM505-54HL4M-BDV has a 30 years power warranty; Jinko Solar JKM520-54HL4M-BDV 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 Jinko Solar JKM505-54HL4M-BDV and Jinko Solar JKM520-54HL4M-BDV bifacial panels?
Both Jinko Solar JKM505-54HL4M-BDV and Jinko Solar JKM520-54HL4M-BDV 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.

Shop prices: See 158 Jinko 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.