Solitek Forza 650 vs Solitek SOLID Semi-Clear Framed 455 W
VS
The verdict
Forza 650 leads on the differences that matter
The largest is rated power: 195 W more power. 6 of 19 comparable parameters are identical.
See all 13 differencesHow alike are they
6
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
13 of 19 parameters
What actually differs
Parameter
Forza 650
SOLID Semi-Clear Framed 455 W
Difference
Rated power
650 Wp
455 Wp
195 W more power
Weight per kWp
52.6 kg/kWp
79.1 kg/kWp
26.5 kg/kWp lighter
Product warranty
25 yrs
30 yrs
5 yrs longer
Open-circuit voltage
44.28 V
34.82 V
9.46 V apart
Short-circuit current
18.48 A
15.97 A
2.51 A apart
Module area
2.830 m²
1.998 m²
0.832 m² apart
Annual degradation
0.40 %/yr
0.31 %/yr
0.09 %/yr slower
Weight
34.2 kg
36.0 kg
1.8 kg lighter
Module efficiency
22.97 %
22.77 %
0.20 pp more efficient
Voltage at max power
37.30 V
29.71 V
7.59 V apart
Current at max power
17.43 A
15.31 A
2.12 A apart
Cell count
120
96
24 cells apart
Dimensions
2172x1303x30 mm
1762x1134x40 mm
2172x1303x30 mm vs 1762x1134x40 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
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.
Forza 650
21,809 kWh
SOLID Semi-Clear Framed 455 W
15,480 kWh
Lifetime gap
6,329 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
Forza 650
SOLID Semi-Clear Framed 455 W
Standard test conditions
25 °C
100.0% of rated power
650 W
455 W
Cool, bright day
40 °C
95.5% of rated power
621 W
435 W
Typical summer roof
55 °C
91.0% of rated power
592 W
414 W
Hot roof
70 °C
86.5% of rated power
562 W
394 W
03
Full specification
Parameter
Forza 650
SOLID Semi-Clear Framed 455 W
Difference
Power and efficiency
Rated power
650 Wp
455 Wp
+195 W for Forza 650
Module efficiency
22.97 %
22.77 %
+0.20 pp for Forza 650
Power density
229.7 Wp/m²
227.7 Wp/m²
Effectively the same
Open-circuit voltage
44.28 V
34.82 V
9.46 V apart
Voltage at max power
37.30 V
29.71 V
7.59 V apart
Short-circuit current
18.48 A
15.97 A
2.51 A apart
Current at max power
17.43 A
15.31 A
2.12 A apart
Temperature
Temperature coefficient
-0.300 %/°C
-0.300 %/°C
Same
Mechanical
Dimensions
2172x1303x30 mm
1762x1134x40 mm
2172x1303x30 mm vs 1762x1134x40 mm
Module area
2.830 m²
1.998 m²
0.832 m² apart
Weight
34.2 kg
36.0 kg
-1.8 kg for Forza 650
Weight per kWp
52.6 kg/kWp
79.1 kg/kWp
-26.5 kg/kWp for Forza 650
Warranty and degradation
Product warranty
25 yrs
30 yrs
+5 yrs for SOLID Semi-Clear Framed 455 W
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.40 %/yr
0.31 %/yr
-0.09 %/yr for SOLID Semi-Clear Framed 455 W
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
120
96
24 cells apart
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#2,237
vs
#3,073
Forza 650 leads by 836 places
Power density
#2,160
vs
#2,888
Forza 650 leads by 728 places
Heat behaviour
#6,093
vs
#6,093
Tied - the same position in the database
Weight
#6,240
vs
#13,709
Forza 650 leads by 7,469 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#551
vs
#5,009
Forza 650 leads by 4,458 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: Solitek Forza 650 or Solitek SOLID Semi-Clear Framed 455 W?
According to our database: Solitek Forza 650 has higher module efficiency (22.97% vs 22.77%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Solitek Forza 650 and Solitek SOLID Semi-Clear Framed 455 W?
Solitek Forza 650 has a module efficiency of 22.97%, while Solitek SOLID Semi-Clear Framed 455 W is 22.77%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Solitek Forza 650 use vs Solitek SOLID Semi-Clear Framed 455 W?
Solitek Forza 650 uses TOPCon cells; Solitek SOLID Semi-Clear Framed 455 W 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 Solitek Forza 650 and Solitek SOLID Semi-Clear Framed 455 W?
Solitek Forza 650 has a 30 years power warranty; Solitek SOLID Semi-Clear Framed 455 W 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 Solitek Forza 650 and Solitek SOLID Semi-Clear Framed 455 W bifacial panels?
Both Solitek Forza 650 and Solitek SOLID Semi-Clear Framed 455 W 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 20 Solitek 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.