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GR455 vs GR450 18 of 19 identical Swap Change panels

TCL Zhonghuan HSM-ND48-GR455 vs TCL Zhonghuan HSM-ND48-GR450

TCL Zhonghuan
HSM-ND48-GR455
455 Wp 22.80 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
TCL Zhonghuan
HSM-ND48-GR450
450 Wp 22.50 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

GR455 leads on the differences that matter

The largest is module efficiency: 0.30 pp more efficient. 18 of 19 comparable parameters are identical.

See the one difference
How alike are they
18 of 19 comparable
parameters are identical
identical differs
01

What actually differs

1 of 19 parameters
Parameter GR455 GR450 Difference
Module efficiency 22.80 % 22.50 % 0.30 pp more efficient
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.
GR455
15,266 kWh
GR450
15,098 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario GR455 GR450
Standard test conditions 25 °C 100.0% of rated power 455 W 450 W
Cool, bright day 40 °C 95.7% of rated power 435 W 430 W
Typical summer roof 55 °C 91.3% of rated power 415 W 411 W
Hot roof 70 °C 87.0% of rated power 396 W 391 W
03

Full specification

Parameter GR455 GR450 Difference
Power and efficiency
Rated power 455 Wp 450 Wp Effectively the same
Module efficiency 22.80 % 22.50 % +0.30 pp for GR455
Power density 227.7 Wp/m² 225.2 Wp/m² Effectively the same
Open-circuit voltage 35.76 V 35.56 V Effectively the same
Voltage at max power 30.32 V 30.13 V Effectively the same
Short-circuit current 16.13 A 16.06 A Effectively the same
Current at max power 15.01 A 14.94 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 53.8 kg/kWp 54.4 kg/kWp Effectively the same
Warranty and degradation
Product warranty 25 yrs 25 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
#2,714 vs #4,222
GR455 leads by 1,508 places
Power density
#2,888 vs #4,225
GR455 leads by 1,337 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#7,897 vs #8,755
GR455 leads by 858 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#5,669 vs #6,225
GR455 leads by 556 places
05

More useful comparisons

Open the full database
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TCL Zhonghuan HSM-ND48-GR455 vs TCL Zhonghuan HSM-ND48-GR445
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TCL Zhonghuan HSM-ND48-GR455 vs TCL Zhonghuan HSM-ND48-GR440
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TCL Zhonghuan HSM-ND48-GR455 vs TCL Zhonghuan HSM-ND48-GR435
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TCL Zhonghuan HSM-ND48-GR455 vs TCL Zhonghuan HSM-ND66-GK725 (IEC1500V)
13 differences, the largest is rated power
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TCL Zhonghuan HSM-ND48-GR455 vs TCL Zhonghuan HSM-ND66-GK725
14 differences, the largest is rated power
Same manufacturer
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TCL Zhonghuan HSM-ND48-GR455 vs TCL Zhonghuan HSM-ND66-GK720 (IEC1500V)
13 differences, the largest is rated power
06

Written summary

07

Questions about this pairing

Which panel is better: TCL Zhonghuan HSM-ND48-GR455 or TCL Zhonghuan HSM-ND48-GR450?
According to our database: TCL Zhonghuan HSM-ND48-GR455 has higher module efficiency (22.80% vs 22.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of TCL Zhonghuan HSM-ND48-GR455 and TCL Zhonghuan HSM-ND48-GR450?
TCL Zhonghuan HSM-ND48-GR455 has a module efficiency of 22.80%, while TCL Zhonghuan HSM-ND48-GR450 is 22.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does TCL Zhonghuan HSM-ND48-GR455 use vs TCL Zhonghuan HSM-ND48-GR450?
TCL Zhonghuan HSM-ND48-GR455 uses TOPCon cells; TCL Zhonghuan HSM-ND48-GR450 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 TCL Zhonghuan HSM-ND48-GR455 and TCL Zhonghuan HSM-ND48-GR450?
TCL Zhonghuan HSM-ND48-GR455 has a 30 years power warranty; TCL Zhonghuan HSM-ND48-GR450 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 TCL Zhonghuan HSM-ND48-GR455 and TCL Zhonghuan HSM-ND48-GR450 bifacial panels?
Both TCL Zhonghuan HSM-ND48-GR455 and TCL Zhonghuan HSM-ND48-GR450 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 25 TCL Zhonghuan 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.