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NT12R/48GDF-445W vs GCL-NT12R/54GDF-530 9 of 19 identical Swap Change panels

GCL NT12R/48GDF-445W vs GCL GCL-NT12R/54GDF-530

NT12R/48GDF-445W
445 Wp 22.27 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
GCL-NT12R/54GDF-530
530 Wp 23.82 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

GCL-NT12R/54GDF-530 leads on the differences that matter

The largest is module efficiency: 1.55 pp more efficient. 9 of 19 comparable parameters are identical.

See all 10 differences
How alike are they
9 of 19 comparable
parameters are identical
identical differs
01

What actually differs

10 of 19 parameters
Parameter NT12R/48GDF-445W GCL-NT12R/54GDF-530 Difference
Module efficiency 22.27 % 23.82 % 1.55 pp more efficient
Rated power 445 Wp 530 Wp 85 W more power
Power density 222.7 Wp/m² 238.2 Wp/m² 15.5 Wp/m² higher
Weight 24.5 kg 27.3 kg 2.8 kg lighter
Open-circuit voltage 34.80 V 40.55 V 5.75 V apart
Module area 1.998 m² 2.225 m² 0.227 m² apart
Weight per kWp 55.1 kg/kWp 51.5 kg/kWp 3.5 kg/kWp lighter
Voltage at max power 29.48 V 34.42 V 4.94 V apart
Cell count 96 108 12 cells apart
Dimensions 1762x1134x30 mm 1962x1134x30 mm 1762x1134x30 mm vs 1962x1134x30 mm
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.
NT12R/48GDF-445W
14,931 kWh
GCL-NT12R/54GDF-530
17,783 kWh
Lifetime gap
2,852 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario NT12R/48GDF-445W GCL-NT12R/54GDF-530
Standard test conditions 25 °C 100.0% of rated power 445 W 530 W
Cool, bright day 40 °C 95.7% of rated power 426 W 507 W
Typical summer roof 55 °C 91.3% of rated power 406 W 484 W
Hot roof 70 °C 87.0% of rated power 387 W 461 W
03

Full specification

Parameter NT12R/48GDF-445W GCL-NT12R/54GDF-530 Difference
Power and efficiency
Rated power 445 Wp 530 Wp +85 W for GCL-NT12R/54GDF-530
Module efficiency 22.27 % 23.82 % +1.55 pp for GCL-NT12R/54GDF-530
Power density 222.7 Wp/m² 238.2 Wp/m² +15.5 Wp/m² for GCL-NT12R/54GDF-530
Open-circuit voltage 34.80 V 40.55 V 5.75 V apart
Voltage at max power 29.48 V 34.42 V 4.94 V apart
Short-circuit current 15.90 A 16.21 A Effectively the same
Current at max power 15.10 A 15.40 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1762x1134x30 mm 1962x1134x30 mm 1762x1134x30 mm vs 1962x1134x30 mm
Module area 1.998 m² 2.225 m² 0.227 m² apart
Weight 24.5 kg 27.3 kg -2.8 kg for NT12R/48GDF-445W
Weight per kWp 55.1 kg/kWp 51.5 kg/kWp -3.5 kg/kWp for GCL-NT12R/54GDF-530
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 96 108 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#5,481 vs #418
GCL-NT12R/54GDF-530 leads by 5,063 places
Power density
#5,302 vs #451
GCL-NT12R/54GDF-530 leads by 4,851 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#9,435 vs #4,879
GCL-NT12R/54GDF-530 leads by 4,556 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#9,473 vs #4,679
GCL-NT12R/54GDF-530 leads by 4,794 places
05

More useful comparisons

Open the full database
Same series, other bin
GCL NT12R/48GDF-445W vs GCL NT12R/54GDF-525W
10 differences, the largest is module efficiency
Same series, other bin
GCL NT12R/48GDF-445W vs GCL GCL-NT12R/54GDF-525
10 differences, the largest is module efficiency
Same series, other bin
GCL NT12R/48GDF-445W vs GCL NT12R/54BGDF-520W
10 differences, the largest is module efficiency
Same series, other bin
GCL NT12R/48GDF-445W vs GCL NT12R/54GDF-520W
10 differences, the largest is module efficiency
Same series, other bin
GCL NT12R/48GDF-445W vs GCL GCL-NT12R/54GDF-520
10 differences, the largest is module efficiency
Same series, other bin
GCL NT12R/48GDF-445W vs GCL NT12R/54BGDF-515W
10 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: GCL NT12R/48GDF-445W or GCL GCL-NT12R/54GDF-530?
According to our database: GCL GCL-NT12R/54GDF-530 has higher module efficiency (23.82% vs 22.27%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of GCL NT12R/48GDF-445W and GCL GCL-NT12R/54GDF-530?
GCL NT12R/48GDF-445 W has a module efficiency of 22.27%, while GCL GCL-NT12R/54GDF-530 is 23.82%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does GCL NT12R/48GDF-445W use vs GCL GCL-NT12R/54GDF-530?
GCL NT12R/48GDF-445 W uses TOPCon cells; GCL GCL-NT12R/54GDF-530 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-445W and GCL GCL-NT12R/54GDF-530?
GCL NT12R/48GDF-445 W has a 30 years power warranty; GCL GCL-NT12R/54GDF-530 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-445W and GCL GCL-NT12R/54GDF-530 bifacial panels?
Both GCL NT12R/48GDF-445 W and GCL GCL-NT12R/54GDF-530 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.

Shop prices: See 6 GCL offers

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.