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(460W class) vs (455W class) 18 of 19 identical Swap Change panels

Just Solar JST-EDMH-(445-465)W-TD (460W class) vs Just Solar JST-EDMH-(445-465)W-TD (455W class)

Just Solar
JST-EDMH-(445-465)W-TD (460W class)
460 Wp 23.56 % TOPCon
Open panel page Datasheet PDF
VS
Just Solar
JST-EDMH-(445-465)W-TD (455W class)
455 Wp 23.30 % TOPCon
Open panel page Datasheet PDF
The verdict

(460W class) leads on the differences that matter

The largest is module efficiency: 0.26 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 (460W class) (455W class) Difference
Module efficiency 23.56 % 23.30 % 0.26 pp more efficient
02

What it means on a roof

Thirty years of production
Declared annual degradation, with a 1.0% first-year loss assumed for both panels because at least one datasheet omits it, 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.
(460W class)
15,194 kWh
(455W class)
15,029 kWh
Lifetime gap
165 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario (460W class) (455W class)
Standard test conditions 25 °C 100.0% of rated power 460 W 455 W
Cool, bright day 40 °C 95.5% of rated power 439 W 435 W
Typical summer roof 55 °C 91.0% of rated power 419 W 414 W
Hot roof 70 °C 86.5% of rated power 398 W 394 W
03

Full specification

Parameter (460W class) (455W class) Difference
Power and efficiency
Rated power 460 Wp 455 Wp Effectively the same
Module efficiency 23.56 % 23.30 % +0.26 pp for (460W class)
Power density 235.6 Wp/m² 233.0 Wp/m² Effectively the same
Open-circuit voltage 38.80 V 38.70 V Effectively the same
Voltage at max power 33.30 V 33.10 V Effectively the same
Short-circuit current 14.39 A 14.26 A Effectively the same
Current at max power 13.81 A 13.75 A Effectively the same
Temperature
Temperature coefficient -0.300 %/°C -0.300 %/°C Same
Mechanical
Dimensions 1722x1134x30 mm 1722x1134x30 mm Same
Module area 1.953 m² 1.953 m² Same
Weight 20.5 kg 20.5 kg Same
Weight per kWp 44.6 kg/kWp 45.1 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.50 %/yr 0.50 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 108 108 Same
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#668 vs #1,017
(460W class) leads by 349 places
Power density
#665 vs #1,098
(460W class) leads by 433 places
Heat behaviour
#6,093 vs #6,093
Tied - the same position in the database
Weight
#477 vs #607
(460W class) leads by 130 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,577 vs #7,080
(460W class) leads by 503 places
05

More useful comparisons

Open the full database
Same series, other bin
Just Solar
Just Solar JST-EDMH-(445-465)W-TD (460W class) vs Just Solar JST-EDMH-(445-465)W-TD (465W class)
One difference: module efficiency
Same series, other bin
Just Solar
Just Solar JST-EDMH-(445-465)W-TD (460W class) vs Just Solar JST-EDMH-465W-TD
One difference: module efficiency
Same series, other bin
Just Solar
Just Solar JST-EDMH-(445-465)W-TD (460W class) vs Just Solar JST-EDMH-460W-TD
The same specification on paper
Same series, other bin
Just Solar
Just Solar JST-EDMH-(445-465)W-TD (460W class) vs Just Solar JST-EDMH-455W-TD
One difference: module efficiency
Same series, other bin
Just Solar
Just Solar JST-EDMH-(445-465)W-TD (460W class) vs Just Solar JST-EDMH-(445-465)W-TD (450W class)
3 differences, the largest is module efficiency
Same series, other bin
Just Solar
Just Solar JST-EDMH-(445-465)W-TD (460W class) vs Just Solar JST-EDMH-450W-TD
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Just Solar JST-EDMH-(445-465)W-TD (460W class) or Just Solar JST-EDMH-(445-465)W-TD (455W class)?
According to our database: Just Solar JST-EDMH-(445-465)W-TD (460 W class) has higher module efficiency (23.56% vs 23.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Just Solar JST-EDMH-(445-465)W-TD (460W class) and Just Solar JST-EDMH-(445-465)W-TD (455W class)?
Just Solar JST-EDMH-(445-465)W-TD (460 W class) has a module efficiency of 23.56%, while Just Solar JST-EDMH-(445-465)W-TD (455 W class) is 23.30%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Just Solar JST-EDMH-(445-465)W-TD (460W class) use vs Just Solar JST-EDMH-(445-465)W-TD (455W class)?
Just Solar JST-EDMH-(445-465)W-TD (460 W class) uses TOPCon cells; Just Solar JST-EDMH-(445-465)W-TD (455 W class) 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 Just Solar JST-EDMH-(445-465)W-TD (460W class) and Just Solar JST-EDMH-(445-465)W-TD (455W class)?
Just Solar JST-EDMH-(445-465)W-TD (460 W class) has a 30 years power warranty; Just Solar JST-EDMH-(445-465)W-TD (455 W class) 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.

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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.