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605 vs 590 15 of 18 identical Swap Change panels

Renewsys DESERV Extreme 144X-605 vs Renewsys DESERV Extreme 144X-590

Renewsys
DESERV Extreme 144X-605
605 Wp 23.45 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
VS
Renewsys
DESERV Extreme 144X-590
590 Wp 22.87 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
The verdict

605 leads on the differences that matter

The largest is module efficiency: 0.58 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 605 590 Difference
Module efficiency 23.45 % 22.87 % 0.58 pp more efficient
Power density 234.5 Wp/m² 228.7 Wp/m² 5.8 Wp/m² higher
Rated power 605 Wp 590 Wp 15 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.
605
20,299 kWh
590
19,796 kWh
Lifetime gap
503 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 605 590
Standard test conditions 25 °C 100.0% of rated power 605 W 590 W
Cool, bright day 40 °C 95.6% of rated power 579 W 564 W
Typical summer roof 55 °C 91.2% of rated power 552 W 538 W
Hot roof 70 °C 86.9% of rated power 526 W 512 W
03

Full specification

Parameter 605 590 Difference
Power and efficiency
Rated power 605 Wp 590 Wp +15 W for 605
Module efficiency 23.45 % 22.87 % +0.58 pp for 605
Power density 234.5 Wp/m² 228.7 Wp/m² +5.8 Wp/m² for 605
Open-circuit voltage 53.30 V 52.51 V Effectively the same
Voltage at max power 44.62 V 43.93 V Effectively the same
Short-circuit current 14.46 A 14.34 A Effectively the same
Current at max power 13.58 A 13.45 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 52.1 kg/kWp 53.4 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
#862 vs #2,531
605 leads by 1,669 places
Power density
#856 vs #2,450
605 leads by 1,594 places
Heat behaviour
#6,056 vs #6,056
Tied - the same position in the database
Weight
#5,508 vs #7,293
605 leads by 1,785 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#2,511 vs #3,677
605 leads by 1,166 places
05

More useful comparisons

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06

Written summary

07

Questions about this pairing

Which panel is better: Renewsys DESERV Extreme 144X-605 or Renewsys DESERV Extreme 144X-590?
According to our database: Renewsys DESERV Extreme 144X-605 has higher module efficiency (23.45% vs 22.87%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Renewsys DESERV Extreme 144X-605 and Renewsys DESERV Extreme 144X-590?
Renewsys DESERV Extreme 144X-605 has a module efficiency of 23.45%, while Renewsys DESERV Extreme 144X-590 is 22.87%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Renewsys DESERV Extreme 144X-605 use vs Renewsys DESERV Extreme 144X-590?
Renewsys DESERV Extreme 144X-605 uses TOPCon cells; Renewsys DESERV Extreme 144X-590 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-605 and Renewsys DESERV Extreme 144X-590?
Renewsys DESERV Extreme 144X-605 has a 30 years power warranty; Renewsys DESERV Extreme 144X-590 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-605 and Renewsys DESERV Extreme 144X-590 bifacial panels?
Both Renewsys DESERV Extreme 144X-605 and Renewsys DESERV Extreme 144X-590 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.