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(445W class) vs (465W class) 16 of 19 identical Swap Change panels

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

Just Solar
JST-EDMH-(445-465)W-TD (445W class)
445 Wp 22.79 % TOPCon
Open panel page Datasheet PDF
VS
Just Solar
JST-EDMH-(445-465)W-TD (465W class)
465 Wp 23.81 % TOPCon
Open panel page Datasheet PDF
The verdict

(465W class) leads on the differences that matter

The largest is module efficiency: 1.02 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 (445W class) (465W class) Difference
Module efficiency 22.79 % 23.81 % 1.02 pp more efficient
Power density 227.9 Wp/m² 238.1 Wp/m² 10.2 Wp/m² higher
Rated power 445 Wp 465 Wp 20 W more power
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.
(445W class)
14,698 kWh
(465W class)
15,359 kWh
Lifetime gap
661 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario (445W class) (465W class)
Standard test conditions 25 °C 100.0% of rated power 445 W 465 W
Cool, bright day 40 °C 95.5% of rated power 425 W 444 W
Typical summer roof 55 °C 91.0% of rated power 405 W 423 W
Hot roof 70 °C 86.5% of rated power 385 W 402 W
03

Full specification

Parameter (445W class) (465W class) Difference
Power and efficiency
Rated power 445 Wp 465 Wp +20 W for (465W class)
Module efficiency 22.79 % 23.81 % +1.02 pp for (465W class)
Power density 227.9 Wp/m² 238.1 Wp/m² +10.2 Wp/m² for (465W class)
Open-circuit voltage 38.30 V 39.00 V Effectively the same
Voltage at max power 32.70 V 33.50 V Effectively the same
Short-circuit current 14.12 A 14.46 A Effectively the same
Current at max power 13.61 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 46.1 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
#3,005 vs #427
(465W class) leads by 2,578 places
Power density
#2,790 vs #453
(465W class) leads by 2,337 places
Heat behaviour
#6,093 vs #6,093
Tied - the same position in the database
Weight
#972 vs #381
(465W class) leads by 591 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#8,148 vs #6,015
(465W class) leads by 2,133 places
05

More useful comparisons

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

Written summary

07

Questions about this pairing

Which panel is better: Just Solar JST-EDMH-(445-465)W-TD (445W class) or Just Solar JST-EDMH-(445-465)W-TD (465W class)?
According to our database: Just Solar JST-EDMH-(445-465)W-TD (465 W class) has higher module efficiency (23.81% vs 22.79%). 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 (445W class) and Just Solar JST-EDMH-(445-465)W-TD (465W class)?
Just Solar JST-EDMH-(445-465)W-TD (445 W class) has a module efficiency of 22.79%, while Just Solar JST-EDMH-(445-465)W-TD (465 W class) 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-(445-465)W-TD (445W class) use vs Just Solar JST-EDMH-(445-465)W-TD (465W class)?
Just Solar JST-EDMH-(445-465)W-TD (445 W class) uses TOPCon cells; Just Solar JST-EDMH-(445-465)W-TD (465 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 (445W class) and Just Solar JST-EDMH-(445-465)W-TD (465W class)?
Just Solar JST-EDMH-(445-465)W-TD (445 W class) has a 30 years power warranty; Just Solar JST-EDMH-(445-465)W-TD (465 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.