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585HN4G vs 580HN4G 18 of 19 identical Swap Change panels

Mission Solar MSI10-585HN4G vs Mission Solar MSI10-580HN4G

Mission Solar
MSI10-585HN4G
585 Wp 22.67 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Mission Solar
MSI10-580HN4G
580 Wp 22.47 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

585HN4G 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 difference
How alike are they
18 of 19 comparable
parameters are identical
identical differs
01

What actually differs

1 of 19 parameters
Parameter 585HN4G 580HN4G Difference
Module efficiency 22.67 % 22.47 % 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 (-0.298 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
585HN4G
19,628 kWh
580HN4G
19,460 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 585HN4G 580HN4G
Standard test conditions 25 °C 100.0% of rated power 585 W 580 W
Cool, bright day 40 °C 95.5% of rated power 559 W 554 W
Typical summer roof 55 °C 91.1% of rated power 533 W 528 W
Hot roof 70 °C 86.6% of rated power 507 W 502 W
03

Full specification

Parameter 585HN4G 580HN4G Difference
Power and efficiency
Rated power 585 Wp 580 Wp Effectively the same
Module efficiency 22.67 % 22.47 % +0.20 pp for 585HN4G
Power density 226.5 Wp/m² 224.5 Wp/m² Effectively the same
Open-circuit voltage 52.70 V 52.50 V Effectively the same
Voltage at max power 44.04 V 43.85 V Effectively the same
Short-circuit current 14.05 A 13.99 A Effectively the same
Current at max power 13.30 A 13.24 A Effectively the same
Temperature
Temperature coefficient -0.298 %/°C -0.298 %/°C Same
Mechanical
Dimensions 2278x1134x30 mm 2278x1134x30 mm Same
Module area 2.583 m² 2.583 m² Same
Weight 32.2 kg 32.2 kg Same
Weight per kWp 55.0 kg/kWp 55.5 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

14,129 panels
Efficiency
#3,563 vs #4,636
585HN4G leads by 1,073 places
Power density
#3,557 vs #4,607
585HN4G leads by 1,050 places
Heat behaviour
#6,149 vs #6,149
Tied - the same position in the database
Weight
#9,512 vs #9,971
585HN4G leads by 459 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#4,131 vs #4,578
585HN4G leads by 447 places
05

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06

Written summary

07

Questions about this pairing

Which panel is better: Mission Solar MSI10-585HN4G or Mission Solar MSI10-580HN4G?
According to our database: Mission Solar MSI10-585HN4G has higher module efficiency (22.67% vs 22.47%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Mission Solar MSI10-585HN4G and Mission Solar MSI10-580HN4G?
Mission Solar MSI10-585HN4G has a module efficiency of 22.67%, while Mission Solar MSI10-580HN4G is 22.47%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Mission Solar MSI10-585HN4G use vs Mission Solar MSI10-580HN4G?
Mission Solar MSI10-585HN4G uses TOPCon cells; Mission Solar MSI10-580HN4G 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 Mission Solar MSI10-585HN4G and Mission Solar MSI10-580HN4G?
Mission Solar MSI10-585HN4G has a 30 years power warranty; Mission Solar MSI10-580HN4G 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 Mission Solar MSI10-585HN4G and Mission Solar MSI10-580HN4G bifacial panels?
Both Mission Solar MSI10-585HN4G and Mission Solar MSI10-580HN4G 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 4 Mission 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.