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36-595 vs 36 585 11 of 19 identical Swap Change panels

BYD NLBK-36-595 vs BYD NLBK-36 585

BYD NLBK-36-595
BYD
NLBK-36-595
595 Wp 23.03 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
BYD NLBK-36 585
BYD
NLBK-36 585
585 Wp 22.65 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

36-595 leads on the differences that matter

The largest is temperature coefficient: 0.022 %/°C better in heat. 11 of 19 comparable parameters are identical.

See all 8 differences
How alike are they
11 of 19 comparable
parameters are identical
identical differs
01

What actually differs

8 of 19 parameters
Parameter 36-595 36 585 Difference
Temperature coefficient -0.300 %/°C -0.278 %/°C 0.022 %/°C better in heat
Module efficiency 23.03 % 22.65 % 0.38 pp more efficient
Power density 230.3 Wp/m² 226.5 Wp/m² 3.9 Wp/m² higher
Short-circuit current 14.71 A 13.49 A 1.22 A apart
Open-circuit voltage 51.41 V 53.82 V 2.41 V apart
Rated power 595 Wp 585 Wp 10 W more power
Voltage at max power 42.81 V 44.90 V 2.09 V apart
Current at max power 13.91 A 13.03 A 0.88 A apart
02

What it means on a roof

Thirty years of production
Declared annual degradation, with a 1.0% first-year loss assumed for both panels because at least one datasheet omits it, at 1,200 kWh/kWp a year
36-595
19,963 kWh
36 585
19,628 kWh
Lifetime gap
335 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 36-595 36 585
Standard test conditions 25 °C 100.0% of rated power 595 W 585 W
Cool, bright day 40 °C 95.5% of rated power 568 W 561 W
Typical summer roof 55 °C 91.0% of rated power 541 W 536 W
Hot roof 70 °C 86.5% of rated power 515 W 512 W
03

Full specification

Parameter 36-595 36 585 Difference
Power and efficiency
Rated power 595 Wp 585 Wp +10 W for 36-595
Module efficiency 23.03 % 22.65 % +0.38 pp for 36-595
Power density 230.3 Wp/m² 226.5 Wp/m² +3.9 Wp/m² for 36-595
Open-circuit voltage 51.41 V 53.82 V 2.41 V apart
Voltage at max power 42.81 V 44.90 V 2.09 V apart
Short-circuit current 14.71 A 13.49 A 1.22 A apart
Current at max power 13.91 A 13.03 A 0.88 A apart
Temperature
Temperature coefficient -0.300 %/°C -0.278 %/°C +0.022 %/°C for 36 585
Mechanical
Dimensions 2278x1134x30 mm 2278x1134x30 mm Same
Module area 2.583 m² 2.583 m² Same
Weight 32.0 kg 32.0 kg Same
Weight per kWp 53.8 kg/kWp 54.7 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 12 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 144 144 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#1,744 vs #3,522
36-595 leads by 1,778 places
Power density
#1,758 vs #3,500
36-595 leads by 1,742 places
Heat behaviour
#6,093 vs #1,295
36 585 leads by 4,798 places
Weight
#7,849 vs #9,081
36-595 leads by 1,232 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#3,341 vs #4,127
36-595 leads by 786 places
05

More useful comparisons

Open the full database
Same series, other bin
BYD
BYD NLBK-36-595 vs BYD NLBK-36-600
One difference: module efficiency
Same series, other bin
BYD
BYD NLBK-36-595 vs BYD NLBK-36 600
6 differences, the largest is temperature coefficient
Same series, other bin
BYD
BYD NLBK-36-595 vs BYD NLBK-36 595
5 differences, the largest is temperature coefficient
Same series, other bin
BYD
BYD NLBK-36-595 vs BYD NLBK-36-590
The same specification on paper
Same series, other bin
BYD
BYD NLBK-36-595 vs BYD NLBK-36 590
5 differences, the largest is temperature coefficient
Same series, other bin
BYD
BYD NLBK-36-595 vs BYD NLBK-36-585
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: BYD NLBK-36-595 or BYD NLBK-36 585?
According to our database: BYD NLBK-36-595 has higher module efficiency (23.03% vs 22.65%); BYD NLBK-36 585 tolerates heat better (temp coeff -0.278%/°C vs -0.300%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of BYD NLBK-36-595 and BYD NLBK-36 585?
BYD NLBK-36-595 has a module efficiency of 23.03%, while BYD NLBK-36 585 is 22.65%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does BYD NLBK-36-595 use vs BYD NLBK-36 585?
BYD NLBK-36-595 uses TOPCon cells; BYD NLBK-36 585 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 BYD NLBK-36-595 and BYD NLBK-36 585?
BYD NLBK-36-595 has a 30 years power warranty; BYD NLBK-36 585 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 BYD NLBK-36-595 and BYD NLBK-36 585 bifacial panels?
Both BYD NLBK-36-595 and BYD NLBK-36 585 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.

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.