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585M vs 580M 17 of 18 identical Swap Change panels

Sunplus SR5-60HBD-585M vs Sunplus SR5-60HBD-580M

Sunplus
SR5-60HBD-585M
585 Wp 20.70 % PERC Bifacial
Open panel page Datasheet PDF
VS
Sunplus
SR5-60HBD-580M
580 Wp 20.50 % PERC Bifacial
Open panel page Datasheet PDF
The verdict

585M leads on the differences that matter

The largest is module efficiency: 0.20 pp more efficient. 17 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See the one difference
How alike are they
17 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

1 of 18 parameters
Parameter 585M 580M Difference
Module efficiency 20.70 % 20.50 % 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 (-0.340 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
585M
19,265 kWh
580M
19,100 kWh
Lifetime gap
165 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 585M 580M
Standard test conditions 25 °C 100.0% of rated power 585 W 580 W
Cool, bright day 40 °C 94.9% of rated power 555 W 550 W
Typical summer roof 55 °C 89.8% of rated power 525 W 521 W
Hot roof 70 °C 84.7% of rated power 495 W 491 W
03

Full specification

Parameter 585M 580M Difference
Power and efficiency
Rated power 585 Wp 580 Wp Effectively the same
Module efficiency 20.70 % 20.50 % +0.20 pp for 585M
Power density 206.7 Wp/m² 204.9 Wp/m² Effectively the same
Open-circuit voltage 40.70 V 40.50 V Effectively the same
Voltage at max power 34.30 V 34.10 V Effectively the same
Short-circuit current 18.32 A 18.27 A Effectively the same
Current at max power 17.06 A 17.02 A Effectively the same
Temperature
Temperature coefficient -0.340 %/°C -0.340 %/°C Same
Mechanical
Dimensions 2172x1303x33 mm 2172x1303x33 mm Same
Module area 2.830 m² 2.830 m² Same
Weight 34.9 kg 34.9 kg Same
Weight per kWp 59.7 kg/kWp 60.2 kg/kWp Effectively the same
Warranty and degradation
Product warranty - - Neither datasheet publishes this
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.45 %/yr 0.45 %/yr Same
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count 120 120 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#10,764 vs #11,308
585M leads by 544 places
Power density
#10,926 vs #11,358
585M leads by 432 places
Heat behaviour
#8,778 vs #8,778
Tied - the same position in the database
Weight
#12,228 vs #12,379
585M leads by 151 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#9,089 vs #9,463
585M leads by 374 places
05

More useful comparisons

Open the full database
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Sunplus SR5-60HBD-585M vs Sunplus SR5-60HBD-600M
3 differences, the largest is module efficiency
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Sunplus SR5-60HBD-585M vs Sunplus SR5-60HBD-595M
3 differences, the largest is module efficiency
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Sunplus SR5-60HBD-585M vs Sunplus SR5-60HBD-590M
The same specification on paper
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Sunplus SR5-60HBD-585M vs Sunplus 750
14 differences, the largest is module efficiency
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Sunplus SR5-60HBD-585M vs Sunplus 745
14 differences, the largest is module efficiency
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Sunplus SR5-60HBD-585M vs Sunplus 740
14 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Sunplus SR5-60HBD-585M or Sunplus SR5-60HBD-580M?
According to our database: Sunplus SR5-60HBD-585M has higher module efficiency (20.70% vs 20.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Sunplus SR5-60HBD-585M and Sunplus SR5-60HBD-580M?
Sunplus SR5-60HBD-585M has a module efficiency of 20.70%, while Sunplus SR5-60HBD-580M is 20.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Sunplus SR5-60HBD-585M use vs Sunplus SR5-60HBD-580M?
Sunplus SR5-60HBD-585M uses PERC cells; Sunplus SR5-60HBD-580M uses PERC. 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 Sunplus SR5-60HBD-585M and Sunplus SR5-60HBD-580M?
Sunplus SR5-60HBD-585M has a 30 years power warranty; Sunplus SR5-60HBD-580M 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 Sunplus SR5-60HBD-585M and Sunplus SR5-60HBD-580M bifacial panels?
Both Sunplus SR5-60HBD-585M and Sunplus SR5-60HBD-580M 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.