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SOLID Semi-Clear Framed 455 W vs Forza 650 6 of 19 identical Swap Change panels

Solitek SOLID Semi-Clear Framed 455 W vs Solitek Forza 650

Solitek
SOLID Semi-Clear Framed 455 W
455 Wp 22.77 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Solitek
Forza 650
650 Wp 22.97 % TOPCon Bifacial
Open panel page Datasheet PDF
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 differences
How alike are they
6 of 19 comparable
parameters are identical
identical differs
01

What actually differs

13 of 19 parameters
Parameter SOLID Semi-Clear Framed 455 W Forza 650 Difference
Rated power 455 Wp 650 Wp 195 W more power
Weight per kWp 79.1 kg/kWp 52.6 kg/kWp 26.5 kg/kWp lighter
Product warranty 30 yrs 25 yrs 5 yrs longer
Open-circuit voltage 34.82 V 44.28 V 9.46 V apart
Short-circuit current 15.97 A 18.48 A 2.51 A apart
Module area 1.998 m² 2.830 m² 0.832 m² apart
Annual degradation 0.31 %/yr 0.40 %/yr 0.09 %/yr slower
Weight 36.0 kg 34.2 kg 1.8 kg lighter
Module efficiency 22.77 % 22.97 % 0.20 pp more efficient
Voltage at max power 29.71 V 37.30 V 7.59 V apart
Current at max power 15.31 A 17.43 A 2.12 A apart
Cell count 96 120 24 cells apart
Dimensions 1762x1134x40 mm 2172x1303x30 mm 1762x1134x40 mm vs 2172x1303x30 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.
SOLID Semi-Clear Framed 455 W
15,480 kWh
Forza 650
21,809 kWh
Lifetime gap
6,329 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario SOLID Semi-Clear Framed 455 W Forza 650
Standard test conditions 25 °C 100.0% of rated power 455 W 650 W
Cool, bright day 40 °C 95.5% of rated power 435 W 621 W
Typical summer roof 55 °C 91.0% of rated power 414 W 592 W
Hot roof 70 °C 86.5% of rated power 394 W 562 W
03

Full specification

Parameter SOLID Semi-Clear Framed 455 W Forza 650 Difference
Power and efficiency
Rated power 455 Wp 650 Wp +195 W for Forza 650
Module efficiency 22.77 % 22.97 % +0.20 pp for Forza 650
Power density 227.7 Wp/m² 229.7 Wp/m² Effectively the same
Open-circuit voltage 34.82 V 44.28 V 9.46 V apart
Voltage at max power 29.71 V 37.30 V 7.59 V apart
Short-circuit current 15.97 A 18.48 A 2.51 A apart
Current at max power 15.31 A 17.43 A 2.12 A apart
Temperature
Temperature coefficient -0.300 %/°C -0.300 %/°C Same
Mechanical
Dimensions 1762x1134x40 mm 2172x1303x30 mm 1762x1134x40 mm vs 2172x1303x30 mm
Module area 1.998 m² 2.830 m² 0.832 m² apart
Weight 36.0 kg 34.2 kg -1.8 kg for Forza 650
Weight per kWp 79.1 kg/kWp 52.6 kg/kWp -26.5 kg/kWp for Forza 650
Warranty and degradation
Product warranty 30 yrs 25 yrs +5 yrs for SOLID Semi-Clear Framed 455 W
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.31 %/yr 0.40 %/yr -0.09 %/yr for SOLID Semi-Clear Framed 455 W
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 96 120 24 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#3,073 vs #2,237
Forza 650 leads by 836 places
Power density
#2,888 vs #2,160
Forza 650 leads by 728 places
Heat behaviour
#6,093 vs #6,093
Tied - the same position in the database
Weight
#13,709 vs #6,240
Forza 650 leads by 7,469 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#5,009 vs #551
Forza 650 leads by 4,458 places
05

More useful comparisons

Open the full database
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Solitek SOLID Semi-Clear Framed 455 W vs Solitek SOLID Framed White 720W
14 differences, the largest is rated power
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Solitek SOLID Semi-Clear Framed 455 W vs Solitek SOLID Framed White 650W
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Solitek SOLID Semi-Clear Framed 455 W vs Solitek Magnus 510
8 differences, the largest is rated power
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Solitek SOLID Semi-Clear Framed 455 W vs Solitek SOLID Framed Transparent 505
12 differences, the largest is rated power
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Solitek SOLID Semi-Clear Framed 455 W vs Solitek SOLRIF D Black 455
6 differences, the largest is power density
06

Written summary

07

Questions about this pairing

Which panel is better: Solitek SOLID Semi-Clear Framed 455 W or Solitek Forza 650?
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 SOLID Semi-Clear Framed 455 W and Solitek Forza 650?
Solitek SOLID Semi-Clear Framed 455 W has a module efficiency of 22.77%, while Solitek Forza 650 is 22.97%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Solitek SOLID Semi-Clear Framed 455 W use vs Solitek Forza 650?
Solitek SOLID Semi-Clear Framed 455 W uses TOPCon cells; Solitek Forza 650 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 SOLID Semi-Clear Framed 455 W and Solitek Forza 650?
Solitek SOLID Semi-Clear Framed 455 W has a 30 years power warranty; Solitek Forza 650 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 SOLID Semi-Clear Framed 455 W and Solitek Forza 650 bifacial panels?
Both Solitek SOLID Semi-Clear Framed 455 W and Solitek Forza 650 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.