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GCL-NT12R/54GDF-525 vs NT12R/54GDF-525W 19 of 19 identical Swap Change panels

GCL GCL-NT12R/54GDF-525 vs GCL NT12R/54GDF-525W

GCL-NT12R/54GDF-525
525 Wp 23.60 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
NT12R/54GDF-525W
525 Wp 23.60 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

Identical on every published parameter

All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from.

How alike are they
19 of 19 comparable
parameters are identical
identical differs
01

What actually differs

0 of 19 parameters

Every comparable parameter agrees. The full specification is below.

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.
GCL-NT12R/54GDF-525
17,615 kWh
NT12R/54GDF-525W
17,615 kWh
Lifetime gap
No difference
Output when it is hot
Rated power carried across the range a module actually sees
Scenario GCL-NT12R/54GDF-525 NT12R/54GDF-525W
Standard test conditions 25 °C 100.0% of rated power 525 W 525 W
Cool, bright day 40 °C 95.7% of rated power 502 W 502 W
Typical summer roof 55 °C 91.3% of rated power 479 W 479 W
Hot roof 70 °C 87.0% of rated power 456 W 456 W
03

Full specification

Parameter GCL-NT12R/54GDF-525 NT12R/54GDF-525W Difference
Power and efficiency
Rated power 525 Wp 525 Wp Same
Module efficiency 23.60 % 23.60 % Same
Power density 236.0 Wp/m² 236.0 Wp/m² Same
Open-circuit voltage 40.30 V 40.30 V Same
Voltage at max power 34.20 V 34.20 V Same
Short-circuit current 16.16 A 16.16 A Same
Current at max power 15.35 A 15.35 A Same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1962x1134x30 mm 1962x1134x30 mm Same
Module area 2.225 m² 2.225 m² Same
Weight 27.3 kg 27.3 kg Same
Weight per kWp 52.0 kg/kWp 52.0 kg/kWp Same
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 108 108 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#627 vs #627
Tied - the same position in the database
Power density
#653 vs #653
Tied - the same position in the database
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#5,417 vs #5,417
Tied - the same position in the database
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#5,035 vs #5,035
Tied - the same position in the database
05

More useful comparisons

Open the full database
Same series, other bin
GCL GCL-NT12R/54GDF-525 vs GCL GCL-NT12R/54GDF-530
One difference: module efficiency
Same series, other bin
GCL GCL-NT12R/54GDF-525 vs GCL NT12R/54BGDF-520W
4 differences, the largest is module efficiency
Same series, other bin
GCL GCL-NT12R/54GDF-525 vs GCL NT12R/54GDF-520W
One difference: module efficiency
Same series, other bin
GCL GCL-NT12R/54GDF-525 vs GCL GCL-NT12R/54GDF-520
One difference: module efficiency
Same series, other bin
GCL GCL-NT12R/54GDF-525 vs GCL NT12R/54BGDF-515W
5 differences, the largest is module efficiency
Same series, other bin
GCL GCL-NT12R/54GDF-525 vs GCL NT12R/54GDF-515W
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: GCL GCL-NT12R/54GDF-525 or GCL NT12R/54GDF-525W?
According to our database: both panels are closely matched on key specs - the decision often comes down to price and local availability. See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of GCL GCL-NT12R/54GDF-525 and GCL NT12R/54GDF-525W?
GCL GCL-NT12R/54GDF-525 has a module efficiency of 23.60%, while GCL NT12R/54GDF-525 W is 23.60%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does GCL GCL-NT12R/54GDF-525 use vs GCL NT12R/54GDF-525W?
GCL GCL-NT12R/54GDF-525 uses TOPCon cells; GCL NT12R/54GDF-525 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 GCL-NT12R/54GDF-525 and GCL NT12R/54GDF-525W?
GCL GCL-NT12R/54GDF-525 has a 30 years power warranty; GCL NT12R/54GDF-525 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 GCL-NT12R/54GDF-525 and GCL NT12R/54GDF-525W bifacial panels?
Both GCL GCL-NT12R/54GDF-525 and GCL NT12R/54GDF-525 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.

Shop prices: See 5 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.