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450W-TD vs 465W-TD 16 of 19 identical Swap Change panels

Just Solar JST-EDMH-450W-TD vs Just Solar JST-EDMH-465W-TD

Just Solar
JST-EDMH-450W-TD
450 Wp 23.05 % TOPCon
Open panel page Datasheet PDF
VS
Just Solar
JST-EDMH-465W-TD
465 Wp 23.81 % TOPCon
Open panel page Datasheet PDF
The verdict

465W-TD leads on the differences that matter

The largest is module efficiency: 0.76 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 465W-TD Difference
Module efficiency 23.05 % 23.81 % 0.76 pp more efficient
Power density 230.4 Wp/m² 238.1 Wp/m² 7.7 Wp/m² higher
Rated power 450 Wp 465 Wp 15 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
465W-TD
15,359 kWh
Lifetime gap
495 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 450W-TD 465W-TD
Standard test conditions 25 °C 100.0% of rated power 450 W 465 W
Cool, bright day 40 °C 95.5% of rated power 430 W 444 W
Typical summer roof 55 °C 91.0% of rated power 410 W 423 W
Hot roof 70 °C 86.5% of rated power 389 W 402 W
03

Full specification

Parameter 450W-TD 465W-TD Difference
Power and efficiency
Rated power 450 Wp 465 Wp +15 W for 465W-TD
Module efficiency 23.05 % 23.81 % +0.76 pp for 465W-TD
Power density 230.4 Wp/m² 238.1 Wp/m² +7.7 Wp/m² for 465W-TD
Open-circuit voltage 38.50 V 39.00 V Effectively the same
Voltage at max power 32.90 V 33.50 V Effectively the same
Short-circuit current 14.19 A 14.46 A Effectively the same
Current at max power 13.68 A 13.88 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 44.1 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
#1,700 vs #427
465W-TD leads by 1,273 places
Power density
#1,708 vs #453
465W-TD leads by 1,255 places
Heat behaviour
#6,093 vs #6,093
Tied - the same position in the database
Weight
#767 vs #381
465W-TD leads by 386 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#7,596 vs #6,015
465W-TD leads by 1,581 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-(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-460W-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 (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-465W-TD?
According to our database: Just Solar JST-EDMH-465 W-TD has higher module efficiency (23.81% 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-465W-TD?
Just Solar JST-EDMH-450 W-TD has a module efficiency of 23.05%, while Just Solar JST-EDMH-465 W-TD is 23.81%. 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-465W-TD?
Just Solar JST-EDMH-450 W-TD uses TOPCon cells; Just Solar JST-EDMH-465 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-465W-TD?
Just Solar JST-EDMH-450 W-TD has a 30 years power warranty; Just Solar JST-EDMH-465 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.