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575 vs 585 15 of 18 identical Swap Change panels

Renewsys DESERV Extreme 144X-575 vs Renewsys DESERV Extreme 144X-585

Renewsys
DESERV Extreme 144X-575
575 Wp 22.29 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
VS
Renewsys
DESERV Extreme 144X-585
585 Wp 22.68 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
The verdict

585 leads on the differences that matter

The largest is module efficiency: 0.39 pp more efficient. 15 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 3 differences
How alike are they
15 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

3 of 18 parameters
Parameter 575 585 Difference
Module efficiency 22.29 % 22.68 % 0.39 pp more efficient
Power density 222.9 Wp/m² 226.8 Wp/m² 3.9 Wp/m² higher
Rated power 575 Wp 585 Wp 10 W more power
02

What it means on a roof

Thirty years of production
A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.292 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
575
19,292 kWh
585
19,628 kWh
Lifetime gap
336 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 575 585
Standard test conditions 25 °C 100.0% of rated power 575 W 585 W
Cool, bright day 40 °C 95.6% of rated power 550 W 559 W
Typical summer roof 55 °C 91.2% of rated power 525 W 534 W
Hot roof 70 °C 86.9% of rated power 499 W 508 W
03

Full specification

Parameter 575 585 Difference
Power and efficiency
Rated power 575 Wp 585 Wp +10 W for 585
Module efficiency 22.29 % 22.68 % +0.39 pp for 585
Power density 222.9 Wp/m² 226.8 Wp/m² +3.9 Wp/m² for 585
Open-circuit voltage 51.55 V 52.22 V Effectively the same
Voltage at max power 43.14 V 43.67 V Effectively the same
Short-circuit current 14.23 A 14.30 A Effectively the same
Current at max power 13.34 A 13.41 A Effectively the same
Temperature
Temperature coefficient -0.292 %/°C -0.292 %/°C Same
Mechanical
Dimensions 2277x1133x35 mm 2277x1133x35 mm Same
Module area 2.580 m² 2.580 m² Same
Weight 31.5 kg 31.5 kg Same
Weight per kWp 54.8 kg/kWp 53.8 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation - - Neither datasheet publishes this
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
#5,376 vs #3,505
585 leads by 1,871 places
Power density
#5,133 vs #3,471
585 leads by 1,662 places
Heat behaviour
#6,056 vs #6,056
Tied - the same position in the database
Weight
#9,174 vs #7,897
585 leads by 1,277 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#4,866 vs #4,065
585 leads by 801 places
05

More useful comparisons

Open the full database
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Renewsys DESERV Extreme 144X-575 vs Renewsys DESERV Extreme 144X-610
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Renewsys DESERV Extreme 144X-575 vs Renewsys DESERV Extreme 144X-605
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Renewsys DESERV Extreme 144X-575 vs Renewsys DESERV Extreme 144X-600
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Renewsys DESERV Extreme 144X-575 vs Renewsys DESERV Extreme 144X-595
5 differences, the largest is module efficiency
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Renewsys DESERV Extreme 144X-575 vs Renewsys DESERV Extreme 144X-590
3 differences, the largest is module efficiency
Same series, other bin
Renewsys
Renewsys DESERV Extreme 144X-575 vs Renewsys DESERV Extreme 144X-580
The same specification on paper
06

Written summary

07

Questions about this pairing

Which panel is better: Renewsys DESERV Extreme 144X-575 or Renewsys DESERV Extreme 144X-585?
According to our database: Renewsys DESERV Extreme 144X-585 has higher module efficiency (22.68% vs 22.29%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Renewsys DESERV Extreme 144X-575 and Renewsys DESERV Extreme 144X-585?
Renewsys DESERV Extreme 144X-575 has a module efficiency of 22.29%, while Renewsys DESERV Extreme 144X-585 is 22.68%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Renewsys DESERV Extreme 144X-575 use vs Renewsys DESERV Extreme 144X-585?
Renewsys DESERV Extreme 144X-575 uses TOPCon cells; Renewsys DESERV Extreme 144X-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 Renewsys DESERV Extreme 144X-575 and Renewsys DESERV Extreme 144X-585?
Renewsys DESERV Extreme 144X-575 has a 30 years power warranty; Renewsys DESERV Extreme 144X-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 Renewsys DESERV Extreme 144X-575 and Renewsys DESERV Extreme 144X-585 bifacial panels?
Both Renewsys DESERV Extreme 144X-575 and Renewsys DESERV Extreme 144X-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.

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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.