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450W-TD vs 460W-TD 16 of 19 identical Swap Change panels

Just Solar JST-EDMH-450W-TD vs Just Solar JST-EDMH-460W-TD

Just Solar
JST-EDMH-450W-TD
450 Wp 23.05 % TOPCon
Open panel page Datasheet PDF
VS
Just Solar
JST-EDMH-460W-TD
460 Wp 23.56 % TOPCon
Open panel page Datasheet PDF
The verdict

460W-TD leads on the differences that matter

The largest is module efficiency: 0.51 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs
01

What actually differs

3 of 19 parameters
Parameter 450W-TD 460W-TD Difference
Module efficiency 23.05 % 23.56 % 0.51 pp more efficient
Power density 230.4 Wp/m² 235.6 Wp/m² 5.1 Wp/m² higher
Rated power 450 Wp 460 Wp 10 W more power
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.
450W-TD
14,864 kWh
460W-TD
15,194 kWh
Lifetime gap
330 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 450W-TD 460W-TD
Standard test conditions 25 °C 100.0% of rated power 450 W 460 W
Cool, bright day 40 °C 95.5% of rated power 430 W 439 W
Typical summer roof 55 °C 91.0% of rated power 410 W 419 W
Hot roof 70 °C 86.5% of rated power 389 W 398 W
03

Full specification

Parameter 450W-TD 460W-TD Difference
Power and efficiency
Rated power 450 Wp 460 Wp +10 W for 460W-TD
Module efficiency 23.05 % 23.56 % +0.51 pp for 460W-TD
Power density 230.4 Wp/m² 235.6 Wp/m² +5.1 Wp/m² for 460W-TD
Open-circuit voltage 38.50 V 38.80 V Effectively the same
Voltage at max power 32.90 V 33.30 V Effectively the same
Short-circuit current 14.19 A 14.39 A Effectively the same
Current at max power 13.68 A 13.81 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 45.6 kg/kWp 44.6 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
#1,700 vs #668
460W-TD leads by 1,032 places
Power density
#1,708 vs #665
460W-TD leads by 1,043 places
Heat behaviour
#6,093 vs #6,093
Tied - the same position in the database
Weight
#767 vs #477
460W-TD leads by 290 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#7,596 vs #6,577
460W-TD leads by 1,019 places
05

More useful comparisons

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

Written summary

07

Questions about this pairing

Which panel is better: Just Solar JST-EDMH-450W-TD or Just Solar JST-EDMH-460W-TD?
According to our database: Just Solar JST-EDMH-460 W-TD has higher module efficiency (23.56% vs 23.05%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Just Solar JST-EDMH-450W-TD and Just Solar JST-EDMH-460W-TD?
Just Solar JST-EDMH-450 W-TD has a module efficiency of 23.05%, while Just Solar JST-EDMH-460 W-TD is 23.56%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Just Solar JST-EDMH-450W-TD use vs Just Solar JST-EDMH-460W-TD?
Just Solar JST-EDMH-450 W-TD uses TOPCon cells; Just Solar JST-EDMH-460 W-TD 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-450W-TD and Just Solar JST-EDMH-460W-TD?
Just Solar JST-EDMH-450 W-TD has a 30 years power warranty; Just Solar JST-EDMH-460 W-TD 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.