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GM 3.0 style 365 Wp vs M 5.0 455 Wp 5 of 18 identical Swap Change panels

Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp vs Solarwatt SOLARWATT Panel vision M 5.0 455 Wp

Solarwatt
SOLARWATT Panel vision GM 3.0 style 365 Wp
365 Wp 19.60 % PERC Bifacial Incomplete
Open panel page Datasheet PDF
VS
Solarwatt
SOLARWATT Panel vision M 5.0 455 Wp
455 Wp 22.80 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
The verdict

M 5.0 455 Wp leads on the differences that matter

The largest is module efficiency: 3.20 pp more efficient. 5 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 13 differences
How alike are they
5 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

13 of 18 parameters
Parameter GM 3.0 style 365 Wp M 5.0 455 Wp Difference
Module efficiency 19.60 % 22.80 % 3.20 pp more efficient
Temperature coefficient -0.340 %/°C -0.290 %/°C 0.050 %/°C better in heat
Rated power 365 Wp 455 Wp 90 W more power
Power density 194.9 Wp/m² 227.7 Wp/m² 32.8 Wp/m² higher
Weight per kWp 68.5 kg/kWp 54.5 kg/kWp 14.0 kg/kWp lighter
Short-circuit current 11.10 A 14.10 A 3.00 A apart
Module area 1.873 m² 1.998 m² 0.126 m² apart
Cell technology PERC TOPCon PERC vs TOPCon
Current at max power 10.50 A 13.60 A 3.10 A apart
Cell count 120 108 12 cells apart
Open-circuit voltage 41.40 V 40.00 V 1.40 V apart
Dimensions 1780x1052x40 mm 1762x1134x35 mm 1780x1052x40 mm vs 1762x1134x35 mm
Voltage at max power 35.00 V 33.40 V 1.60 V apart
02

What it means on a roof

Thirty years of production
A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year
GM 3.0 style 365 Wp
12,246 kWh
M 5.0 455 Wp
15,266 kWh
Lifetime gap
3,020 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario GM 3.0 style 365 Wp M 5.0 455 Wp
Standard test conditions 25 °C 100.0% of rated power 365 W 455 W
Cool, bright day 40 °C 94.9% of rated power 346 W 435 W
Typical summer roof 55 °C 89.8% of rated power 328 W 415 W
Hot roof 70 °C 84.7% of rated power 309 W 396 W
03

Full specification

Parameter GM 3.0 style 365 Wp M 5.0 455 Wp Difference
Power and efficiency
Rated power 365 Wp 455 Wp +90 W for M 5.0 455 Wp
Module efficiency 19.60 % 22.80 % +3.20 pp for M 5.0 455 Wp
Power density 194.9 Wp/m² 227.7 Wp/m² +32.8 Wp/m² for M 5.0 455 Wp
Open-circuit voltage 41.40 V 40.00 V 1.40 V apart
Voltage at max power 35.00 V 33.40 V 1.60 V apart
Short-circuit current 11.10 A 14.10 A 3.00 A apart
Current at max power 10.50 A 13.60 A 3.10 A apart
Temperature
Temperature coefficient -0.340 %/°C -0.290 %/°C +0.050 %/°C for M 5.0 455 Wp
Mechanical
Dimensions 1780x1052x40 mm 1762x1134x35 mm 1780x1052x40 mm vs 1762x1134x35 mm
Module area 1.873 m² 1.998 m² 0.126 m² apart
Weight 25.0 kg 24.8 kg Effectively the same
Weight per kWp 68.5 kg/kWp 54.5 kg/kWp -14.0 kg/kWp for M 5.0 455 Wp
Warranty and degradation
Product warranty 30 yrs 30 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation - - Neither datasheet publishes this
Technology
Cell technology PERC TOPCon PERC vs TOPCon
Cell type Monocrystalline Monocrystalline Same
Cell count 120 108 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#12,589 vs #2,714
M 5.0 455 Wp leads by 9,875 places
Power density
#12,658 vs #2,888
M 5.0 455 Wp leads by 9,770 places
Heat behaviour
#8,778 vs #2,165
M 5.0 455 Wp leads by 6,613 places
Weight
#13,326 vs #8,839
M 5.0 455 Wp leads by 4,487 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#10,932 vs #4,712
M 5.0 455 Wp leads by 6,220 places
05

More useful comparisons

Open the full database
Same series, other bin
Solarwatt
Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp vs Solarwatt SOLARWATT Panel vision GM 3.0 style 370
One difference: module efficiency
Same series, other bin
Solarwatt
Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp vs Solarwatt SOLARWATT Panel vision GM 3.0 style 370 Wp
One difference: module efficiency
Same series, other bin
Solarwatt
Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp vs Solarwatt SOLARWATT Panel vision GM 3.0 style 365
The same specification on paper
Same series, other bin
Solarwatt
Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp vs Solarwatt SOLARWATT Panel vision GM 3.0 style 360
One difference: module efficiency
Same series, other bin
Solarwatt
Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp vs Solarwatt SOLARWATT Panel vision GM 3.0 style 360 Wp
One difference: module efficiency
Same series, other bin
Solarwatt
Solarwatt SOLARWATT Panel vision M 5.0 455 Wp vs Solarwatt SOLARWATT Panel vision M 5.0 460 Wp
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp or Solarwatt SOLARWATT Panel vision M 5.0 455 Wp?
According to our database: Solarwatt SOLARWATT Panel vision M 5.0 455 Wp has higher module efficiency (22.80% vs 19.60%); Solarwatt SOLARWATT Panel vision M 5.0 455 Wp tolerates heat better (temp coeff -0.290%/°C vs -0.340%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp and Solarwatt SOLARWATT Panel vision M 5.0 455 Wp?
Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp has a module efficiency of 19.60%, while Solarwatt SOLARWATT Panel vision M 5.0 455 Wp is 22.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp use vs Solarwatt SOLARWATT Panel vision M 5.0 455 Wp?
Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp uses PERC cells; Solarwatt SOLARWATT Panel vision M 5.0 455 Wp 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 Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp and Solarwatt SOLARWATT Panel vision M 5.0 455 Wp?
Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp has a 30 years power warranty; Solarwatt SOLARWATT Panel vision M 5.0 455 Wp 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 Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp and Solarwatt SOLARWATT Panel vision M 5.0 455 Wp bifacial panels?
Both Solarwatt SOLARWATT Panel vision GM 3.0 style 365 Wp and Solarwatt SOLARWATT Panel vision M 5.0 455 Wp 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.

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.