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440W vs 465W 13 of 19 identical Swap Change panels

GCL NT12R/48GDF-440W vs GCL NT12R/48GDF-465W

NT12R/48GDF-440W
440 Wp 22.02 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
NT12R/48GDF-465W
465 Wp 23.27 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

465W leads on the differences that matter

The largest is module efficiency: 1.25 pp more efficient. 13 of 19 comparable parameters are identical.

See all 6 differences
How alike are they
13 of 19 comparable
parameters are identical
identical differs
01

What actually differs

6 of 19 parameters
Parameter 440W 465W Difference
Module efficiency 22.02 % 23.27 % 1.25 pp more efficient
Power density 220.2 Wp/m² 232.7 Wp/m² 12.5 Wp/m² higher
Rated power 440 Wp 465 Wp 25 W more power
Weight per kWp 55.7 kg/kWp 52.7 kg/kWp 3.0 kg/kWp lighter
Open-circuit voltage 34.55 V 35.80 V 1.25 V apart
Voltage at max power 29.24 V 30.33 V 1.09 V apart
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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
440W
14,763 kWh
465W
15,602 kWh
Lifetime gap
839 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 440W 465W
Standard test conditions 25 °C 100.0% of rated power 440 W 465 W
Cool, bright day 40 °C 95.7% of rated power 421 W 445 W
Typical summer roof 55 °C 91.3% of rated power 402 W 425 W
Hot roof 70 °C 87.0% of rated power 383 W 404 W
03

Full specification

Parameter 440W 465W Difference
Power and efficiency
Rated power 440 Wp 465 Wp +25 W for 465W
Module efficiency 22.02 % 23.27 % +1.25 pp for 465W
Power density 220.2 Wp/m² 232.7 Wp/m² +12.5 Wp/m² for 465W
Open-circuit voltage 34.55 V 35.80 V 1.25 V apart
Voltage at max power 29.24 V 30.33 V 1.09 V apart
Short-circuit current 15.85 A 16.11 A Effectively the same
Current at max power 15.05 A 15.33 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1762x1134x30 mm 1762x1134x30 mm Same
Module area 1.998 m² 1.998 m² Same
Weight 24.5 kg 24.5 kg Same
Weight per kWp 55.7 kg/kWp 52.7 kg/kWp -3.0 kg/kWp for 465W
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 96 96 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#6,329 vs #1,202
465W leads by 5,127 places
Power density
#6,328 vs #1,115
465W leads by 5,213 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#10,051 vs #6,318
465W leads by 3,733 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#9,828 vs #7,627
465W leads by 2,201 places
05

More useful comparisons

Open the full database
Same series, other bin
GCL NT12R/48GDF-440W vs GCL GCL-NT12R/54GDF-530
10 differences, the largest is module efficiency
Same series, other bin
GCL NT12R/48GDF-440W vs GCL NT12R/54GDF-525W
10 differences, the largest is module efficiency
Same series, other bin
GCL NT12R/48GDF-440W vs GCL GCL-NT12R/54GDF-525
10 differences, the largest is module efficiency
Same series, other bin
GCL NT12R/48GDF-440W vs GCL NT12R/54BGDF-520W
10 differences, the largest is module efficiency
Same series, other bin
GCL NT12R/48GDF-440W vs GCL NT12R/54GDF-520W
10 differences, the largest is module efficiency
Same series, other bin
GCL NT12R/48GDF-440W vs GCL GCL-NT12R/54GDF-520
10 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: GCL NT12R/48GDF-440W or GCL NT12R/48GDF-465W?
According to our database: GCL NT12R/48GDF-465 W has higher module efficiency (23.27% vs 22.02%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of GCL NT12R/48GDF-440W and GCL NT12R/48GDF-465W?
GCL NT12R/48GDF-440 W has a module efficiency of 22.02%, while GCL NT12R/48GDF-465 W is 23.27%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does GCL NT12R/48GDF-440W use vs GCL NT12R/48GDF-465W?
GCL NT12R/48GDF-440 W uses TOPCon cells; GCL NT12R/48GDF-465 W 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 GCL NT12R/48GDF-440W and GCL NT12R/48GDF-465W?
GCL NT12R/48GDF-440 W has a 30 years power warranty; GCL NT12R/48GDF-465 W 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 GCL NT12R/48GDF-440W and GCL NT12R/48GDF-465W bifacial panels?
Both GCL NT12R/48GDF-440 W and GCL NT12R/48GDF-465 W 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.

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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.