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590 vs 580 16 of 19 identical Swap Change panels

Waaree BiN-08-590 vs Waaree BiN-08-580

BiN-08-590
590 Wp 22.84 % N-type Bifacial
Open panel page Datasheet PDF
VS
BiN-08-580
580 Wp 22.45 % N-type Bifacial
Open panel page Datasheet PDF
The verdict

590 leads on the differences that matter

The largest is module efficiency: 0.39 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs
01

What actually differs

3 of 19 parameters
Parameter 590 580 Difference
Module efficiency 22.84 % 22.45 % 0.39 pp more efficient
Power density 228.4 Wp/m² 224.5 Wp/m² 3.9 Wp/m² higher
Rated power 590 Wp 580 Wp 10 W more power
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 (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
590
19,796 kWh
580
19,460 kWh
Lifetime gap
336 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 590 580
Standard test conditions 25 °C 100.0% of rated power 590 W 580 W
Cool, bright day 40 °C 95.5% of rated power 563 W 554 W
Typical summer roof 55 °C 91.0% of rated power 537 W 528 W
Hot roof 70 °C 86.5% of rated power 510 W 502 W
03

Full specification

Parameter 590 580 Difference
Power and efficiency
Rated power 590 Wp 580 Wp +10 W for 590
Module efficiency 22.84 % 22.45 % +0.39 pp for 590
Power density 228.4 Wp/m² 224.5 Wp/m² +3.9 Wp/m² for 590
Open-circuit voltage 52.90 V 52.50 V Effectively the same
Voltage at max power 44.29 V 44.01 V Effectively the same
Short-circuit current 14.05 A 13.93 A Effectively the same
Current at max power 13.32 A 13.18 A Effectively the same
Temperature
Temperature coefficient -0.300 %/°C -0.300 %/°C Same
Mechanical
Dimensions 2278x1134x33 mm 2278x1134x33 mm Same
Module area 2.583 m² 2.583 m² Same
Weight 32.5 kg 32.5 kg Same
Weight per kWp 55.1 kg/kWp 56.0 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 N-type N-type Same
Cell type Monocrystalline Monocrystalline Same
Cell count 144 144 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#2,617 vs #4,620
590 leads by 2,003 places
Power density
#2,598 vs #4,547
590 leads by 1,949 places
Heat behaviour
#6,093 vs #6,093
Tied - the same position in the database
Weight
#9,503 vs #10,343
590 leads by 840 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#3,779 vs #4,591
590 leads by 812 places
05

More useful comparisons

Open the full database
Same series, other bin
Waaree BiN-08-590 vs Waaree BiN-08-600
3 differences, the largest is module efficiency
Same series, other bin
Waaree BiN-08-590 vs Waaree BiN-08-595
The same specification on paper
Same series, other bin
Waaree BiN-08-590 vs Waaree BiN-08-585
The same specification on paper
Same series, other bin
Waaree BiN-08-590 vs Waaree BiN-08-575
3 differences, the largest is module efficiency
Same series, other bin
Waaree BiN-08-590 vs Waaree BiN-08-570
3 differences, the largest is module efficiency
Same series, other bin
Waaree BiN-08-590 vs Waaree BiN-08-565
5 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Waaree BiN-08-590 or Waaree BiN-08-580?
According to our database: Waaree BiN-08-590 has higher module efficiency (22.84% vs 22.45%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Waaree BiN-08-590 and Waaree BiN-08-580?
Waaree BiN-08-590 has a module efficiency of 22.84%, while Waaree BiN-08-580 is 22.45%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Waaree BiN-08-590 use vs Waaree BiN-08-580?
Waaree BiN-08-590 uses N-type cells; Waaree BiN-08-580 uses N-type. 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 Waaree BiN-08-590 and Waaree BiN-08-580?
Waaree BiN-08-590 has a 30 years power warranty; Waaree BiN-08-580 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 Waaree BiN-08-590 and Waaree BiN-08-580 bifacial panels?
Both Waaree BiN-08-590 and Waaree BiN-08-580 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 26 Waaree 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.