Waaree WSMD-655 vs Waaree WSMD-545
VS
The verdict
11 differences, and they point both ways
The largest is rated power: 110 W more power. 8 of 19 comparable parameters are identical.
See all 11 differencesHow alike are they
8
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
11 of 19 parameters
What actually differs
Parameter
655
545
Difference
Rated power
655 Wp
545 Wp
110 W more power
Weight
34.5 kg
27.5 kg
7.0 kg lighter
Short-circuit current
17.90 A
13.90 A
4.00 A apart
Module area
3.125 m²
2.574 m²
0.551 m² apart
Open-circuit voltage
46.26 V
49.76 V
3.50 V apart
Temperature coefficient
-0.340 %/°C
-0.350 %/°C
0.010 %/°C better in heat
Current at max power
17.29 A
13.02 A
4.27 A apart
Cell count
132
144
12 cells apart
Voltage at max power
37.94 V
41.90 V
3.96 V apart
Weight per kWp
52.7 kg/kWp
50.5 kg/kWp
2.2 kg/kWp lighter
Dimensions
2400x1302x35 mm
2272x1133x35 mm
2400x1302x35 mm vs 2272x1133x35 mm
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
655
21,228 kWh
545
17,663 kWh
Lifetime gap
3,565 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
655
545
Standard test conditions
25 °C
100.0% of rated power
655 W
545 W
Cool, bright day
40 °C
94.8% of rated power
622 W
516 W
Typical summer roof
55 °C
89.5% of rated power
588 W
488 W
Hot roof
70 °C
84.2% of rated power
555 W
459 W
03
Full specification
Parameter
655
545
Difference
Power and efficiency
Rated power
655 Wp
545 Wp
+110 W for 655
Module efficiency
20.99 %
21.17 %
Effectively the same
Power density
209.6 Wp/m²
211.7 Wp/m²
Effectively the same
Open-circuit voltage
46.26 V
49.76 V
3.50 V apart
Voltage at max power
37.94 V
41.90 V
3.96 V apart
Short-circuit current
17.90 A
13.90 A
4.00 A apart
Current at max power
17.29 A
13.02 A
4.27 A apart
Temperature
Temperature coefficient
-0.340 %/°C
-0.350 %/°C
+0.010 %/°C for 655
Mechanical
Dimensions
2400x1302x35 mm
2272x1133x35 mm
2400x1302x35 mm vs 2272x1133x35 mm
Module area
3.125 m²
2.574 m²
0.551 m² apart
Weight
34.5 kg
27.5 kg
-7.0 kg for 545
Weight per kWp
52.7 kg/kWp
50.5 kg/kWp
-2.2 kg/kWp for 545
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
27 yrs
27 yrs
Same
Annual degradation
0.55 %/yr
0.55 %/yr
Same
Technology
Cell technology
PERC
PERC
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
144
12 cells apart
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#9,944
vs
#9,219
545 leads by 725 places
Power density
#9,923
vs
#9,168
545 leads by 755 places
Heat behaviour
#8,778
vs
#10,419
655 leads by 1,641 places
Weight
#6,295
vs
#3,832
545 leads by 2,463 places
Warranty
#9,667
vs
#9,667
Tied - the same position in the database
Overall
#4,206
vs
#7,908
655 leads by 3,702 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Waaree WSMD-655 or Waaree WSMD-545?
According to our database: Waaree WSMD-545 has higher module efficiency (21.17% vs 20.99%); Waaree WSMD-655 tolerates heat better (temp coeff -0.340%/°C vs -0.350%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Waaree WSMD-655 and Waaree WSMD-545?
Waaree WSMD-655 has a module efficiency of 20.99%, while Waaree WSMD-545 is 21.17%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Waaree WSMD-655 use vs Waaree WSMD-545?
Waaree WSMD-655 uses PERC cells; Waaree WSMD-545 uses PERC. 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 WSMD-655 and Waaree WSMD-545?
Waaree WSMD-655 has a 27 years power warranty; Waaree WSMD-545 has a 27 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.
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.