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475 vs 455 14 of 19 identical Swap Change panels

Astronergy CHSM48RN(DG)/F-BH-475 vs Astronergy CHSM48RN(DG)/F-BH-455

Astronergy CHSM48RN(DG)/F-BH-475
CHSM48RN(DG)/F-BH-475
475 Wp 23.80 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Astronergy CHSM48RN(DG)/F-BH-455
CHSM48RN(DG)/F-BH-455
455 Wp 22.80 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

475 leads on the differences that matter

The largest is module efficiency: 1.00 pp more efficient. 14 of 19 comparable parameters are identical.

See all 5 differences
How alike are they
14 of 19 comparable
parameters are identical
identical differs
01

What actually differs

5 of 19 parameters
Parameter 475 455 Difference
Module efficiency 23.80 % 22.80 % 1.00 pp more efficient
Power density 237.7 Wp/m² 227.7 Wp/m² 10.0 Wp/m² higher
Rated power 475 Wp 455 Wp 20 W more power
Weight per kWp 51.6 kg/kWp 53.8 kg/kWp 2.3 kg/kWp lighter
Current at max power 15.43 A 14.93 A 0.50 A 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.
475
15,937 kWh
455
15,266 kWh
Lifetime gap
671 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 475 455
Standard test conditions 25 °C 100.0% of rated power 475 W 455 W
Cool, bright day 40 °C 95.7% of rated power 454 W 435 W
Typical summer roof 55 °C 91.3% of rated power 434 W 415 W
Hot roof 70 °C 87.0% of rated power 413 W 396 W
03

Full specification

Parameter 475 455 Difference
Power and efficiency
Rated power 475 Wp 455 Wp +20 W for 475
Module efficiency 23.80 % 22.80 % +1.00 pp for 475
Power density 237.7 Wp/m² 227.7 Wp/m² +10.0 Wp/m² for 475
Open-circuit voltage 36.95 V 36.58 V Effectively the same
Voltage at max power 30.78 V 30.47 V Effectively the same
Short-circuit current 16.15 A 15.78 A Effectively the same
Current at max power 15.43 A 14.93 A 0.50 A apart
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 51.6 kg/kWp 53.8 kg/kWp -2.3 kg/kWp for 475
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
#433 vs #2,714
475 leads by 2,281 places
Power density
#467 vs #2,888
475 leads by 2,421 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#4,954 vs #7,897
475 leads by 2,943 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#3,891 vs #5,669
475 leads by 1,778 places
05

More useful comparisons

Open the full database
Same series, other bin
Astronergy CHSM48RN(DG)/F-BH-475 vs Astronergy CHSM48RN(DG)(BLH)/F-BH-470
One difference: module efficiency
Same series, other bin
Astronergy CHSM48RN(DG)/F-BH-475 vs Astronergy CHSM48RN(DG)/F-BH-470
One difference: module efficiency
Same series, other bin
Astronergy CHSM48RN(DG)/F-BH-475 vs Astronergy CHSM48RN(DG)/F-BH-465
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM48RN(DG)/F-BH-475 vs Astronergy CHSM48RN(DG)(BLH)/F-BH-465
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM48RN(DG)/F-BH-475 vs Astronergy CHSM48RN(DG)(BLH)/F-BH-460
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM48RN(DG)/F-BH-475 vs Astronergy CHSM48RN(DG)/F-BH-460
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Astronergy CHSM48RN(DG)/F-BH-475 or Astronergy CHSM48RN(DG)/F-BH-455?
According to our database: Astronergy CHSM48RN(DG)/F-BH-475 has higher module efficiency (23.80% vs 22.80%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Astronergy CHSM48RN(DG)/F-BH-475 and Astronergy CHSM48RN(DG)/F-BH-455?
Astronergy CHSM48RN(DG)/F-BH-475 has a module efficiency of 23.80%, while Astronergy CHSM48RN(DG)/F-BH-455 is 22.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Astronergy CHSM48RN(DG)/F-BH-475 use vs Astronergy CHSM48RN(DG)/F-BH-455?
Astronergy CHSM48RN(DG)/F-BH-475 uses TOPCon cells; Astronergy CHSM48RN(DG)/F-BH-455 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 Astronergy CHSM48RN(DG)/F-BH-475 and Astronergy CHSM48RN(DG)/F-BH-455?
Astronergy CHSM48RN(DG)/F-BH-475 has a 30 years power warranty; Astronergy CHSM48RN(DG)/F-BH-455 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 Astronergy CHSM48RN(DG)/F-BH-475 and Astronergy CHSM48RN(DG)/F-BH-455 bifacial panels?
Both Astronergy CHSM48RN(DG)/F-BH-475 and Astronergy CHSM48RN(DG)/F-BH-455 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.