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555 vs 550 18 of 19 identical Swap Change panels

Waaree BiN-08-555 vs Waaree BiN-08-550

BiN-08-555
555 Wp 21.48 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
BiN-08-550
550 Wp 21.28 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

555 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 555 550 Difference
Module efficiency 21.48 % 21.28 % 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 (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
555
18,621 kWh
550
18,454 kWh
Lifetime gap
167 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 555 550
Standard test conditions 25 °C 100.0% of rated power 555 W 550 W
Cool, bright day 40 °C 95.5% of rated power 530 W 525 W
Typical summer roof 55 °C 91.0% of rated power 505 W 501 W
Hot roof 70 °C 86.5% of rated power 480 W 476 W
03

Full specification

Parameter 555 550 Difference
Power and efficiency
Rated power 555 Wp 550 Wp Effectively the same
Module efficiency 21.48 % 21.28 % +0.20 pp for 555
Power density 214.8 Wp/m² 212.8 Wp/m² Effectively the same
Open-circuit voltage 50.50 V 50.30 V Effectively the same
Voltage at max power 41.80 V 41.60 V Effectively the same
Short-circuit current 14.05 A 13.99 A Effectively the same
Current at max power 13.28 A 13.23 A Effectively the same
Temperature
Temperature coefficient -0.300 %/°C -0.300 %/°C Same
Mechanical
Dimensions 2279x1134x35 mm 2279x1134x35 mm Same
Module area 2.584 m² 2.584 m² Same
Weight 32.0 kg 32.0 kg Same
Weight per kWp 57.7 kg/kWp 58.2 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

14,005 panels
Efficiency
#8,152 vs #8,795
555 leads by 643 places
Power density
#8,148 vs #8,643
555 leads by 495 places
Heat behaviour
#6,093 vs #6,093
Tied - the same position in the database
Weight
#11,340 vs #11,595
555 leads by 255 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,600 vs #7,029
555 leads by 429 places
05

More useful comparisons

Open the full database
Same series, other bin
Waaree BiN-08-555 vs Waaree BiN-08-560
The same specification on paper
Same series, other bin
Waaree BiN-08-555 vs Waaree BiN-08-545
3 differences, the largest is module efficiency
Same manufacturer
Waaree BiN-08-555 vs Waaree BiH-11-730
13 differences, the largest is module efficiency
Same manufacturer
Waaree BiN-08-555 vs Waaree BiH-11-725
13 differences, the largest is module efficiency
Same manufacturer
Waaree BiN-08-555 vs Waaree BiH-11-720
13 differences, the largest is module efficiency
Same manufacturer
Waaree BiN-08-555 vs Waaree BiH-11-715
13 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Waaree BiN-08-555 or Waaree BiN-08-550?
According to our database: Waaree BiN-08-555 has higher module efficiency (21.48% vs 21.28%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Waaree BiN-08-555 and Waaree BiN-08-550?
Waaree BiN-08-555 has a module efficiency of 21.48%, while Waaree BiN-08-550 is 21.28%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Waaree BiN-08-555 use vs Waaree BiN-08-550?
Waaree BiN-08-555 uses TOPCon cells; Waaree BiN-08-550 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 Waaree BiN-08-555 and Waaree BiN-08-550?
Waaree BiN-08-555 has a 30 years power warranty; Waaree BiN-08-550 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-08-555 and Waaree BiN-08-550 bifacial panels?
Both Waaree BiN-08-555 and Waaree BiN-08-550 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 24 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.