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CHSM54RNs(DG)(BLH)/F-BH-455W vs CHSM66N(DG)/F-BH-730 6 of 19 identical Swap Change panels

Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W vs Astronergy CHSM66N(DG)/F-BH-730

CHSM54RNs(DG)(BLH)/F-BH-455W
455 Wp 22.80 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Astronergy CHSM66N(DG)/F-BH-730
CHSM66N(DG)/F-BH-730
730 Wp 23.50 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

13 differences, and they point both ways

The largest is module efficiency: 0.70 pp more efficient. 6 of 19 comparable parameters are identical.

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

What actually differs

13 of 19 parameters
Parameter CHSM54RNs(DG)(BLH)/F-BH-455W CHSM66N(DG)/F-BH-730 Difference
Module efficiency 22.80 % 23.50 % 0.70 pp more efficient
Rated power 455 Wp 730 Wp 275 W more power
Weight 21.5 kg 38.0 kg 16.5 kg lighter
Product warranty 25 yrs 15 yrs 10 yrs longer
Power density 227.7 Wp/m² 235.0 Wp/m² 7.3 Wp/m² higher
Open-circuit voltage 39.60 V 49.57 V 9.97 V apart
Short-circuit current 14.36 A 18.67 A 4.31 A apart
Module area 1.998 m² 3.106 m² 1.108 m² apart
Weight per kWp 47.3 kg/kWp 52.1 kg/kWp 4.8 kg/kWp lighter
Voltage at max power 33.56 V 41.24 V 7.68 V apart
Current at max power 13.56 A 17.70 A 4.14 A apart
Cell count 108 132 24 cells apart
Dimensions 1762x1134x30 mm 2384x1303x33 mm 1762x1134x30 mm vs 2384x1303x33 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.
CHSM54RNs(DG)(BLH)/F-BH-455W
15,266 kWh
CHSM66N(DG)/F-BH-730
24,493 kWh
Lifetime gap
9,227 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario CHSM54RNs(DG)(BLH)/F-BH-455W CHSM66N(DG)/F-BH-730
Standard test conditions 25 °C 100.0% of rated power 455 W 730 W
Cool, bright day 40 °C 95.7% of rated power 435 W 698 W
Typical summer roof 55 °C 91.3% of rated power 415 W 666 W
Hot roof 70 °C 87.0% of rated power 396 W 635 W
03

Full specification

Parameter CHSM54RNs(DG)(BLH)/F-BH-455W CHSM66N(DG)/F-BH-730 Difference
Power and efficiency
Rated power 455 Wp 730 Wp +275 W for CHSM66N(DG)/F-BH-730
Module efficiency 22.80 % 23.50 % +0.70 pp for CHSM66N(DG)/F-BH-730
Power density 227.7 Wp/m² 235.0 Wp/m² +7.3 Wp/m² for CHSM66N(DG)/F-BH-730
Open-circuit voltage 39.60 V 49.57 V 9.97 V apart
Voltage at max power 33.56 V 41.24 V 7.68 V apart
Short-circuit current 14.36 A 18.67 A 4.31 A apart
Current at max power 13.56 A 17.70 A 4.14 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1762x1134x30 mm 2384x1303x33 mm 1762x1134x30 mm vs 2384x1303x33 mm
Module area 1.998 m² 3.106 m² 1.108 m² apart
Weight 21.5 kg 38.0 kg -16.5 kg for CHSM54RNs(DG)(BLH)/F-BH-455W
Weight per kWp 47.3 kg/kWp 52.1 kg/kWp -4.8 kg/kWp for CHSM54RNs(DG)(BLH)/F-BH-455W
Warranty and degradation
Product warranty 25 yrs 15 yrs +10 yrs for CHSM54RNs(DG)(BLH)/F-BH-455W
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 108 132 24 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#2,714 vs #716
CHSM66N(DG)/F-BH-730 leads by 1,998 places
Power density
#2,888 vs #800
CHSM66N(DG)/F-BH-730 leads by 2,088 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#1,601 vs #5,495
CHSM54RNs(DG)(BLH)/F-BH-455W leads by 3,894 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#5,539 vs #199
CHSM66N(DG)/F-BH-730 leads by 5,340 places
05

More useful comparisons

Open the full database
Same series, other bin
Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-460W
One difference: module efficiency
Same series, other bin
Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W
One difference: module efficiency
Same series, other bin
Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-445W
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM66N(DG)/F-BH-735
One difference: module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM66N(DG)/F-BH-725
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W or Astronergy CHSM66N(DG)/F-BH-730?
According to our database: Astronergy CHSM66N(DG)/F-BH-730 has higher module efficiency (23.50% vs 22.80%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W and Astronergy CHSM66N(DG)/F-BH-730?
Astronergy CHSM54RNs(DG)(BLH)/F-BH-455 W has a module efficiency of 22.80%, while Astronergy CHSM66N(DG)/F-BH-730 is 23.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W use vs Astronergy CHSM66N(DG)/F-BH-730?
Astronergy CHSM54RNs(DG)(BLH)/F-BH-455 W uses TOPCon cells; Astronergy CHSM66N(DG)/F-BH-730 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 CHSM54RNs(DG)(BLH)/F-BH-455W and Astronergy CHSM66N(DG)/F-BH-730?
Astronergy CHSM54RNs(DG)(BLH)/F-BH-455 W has a 30 years power warranty; Astronergy CHSM66N(DG)/F-BH-730 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 CHSM54RNs(DG)(BLH)/F-BH-455W and Astronergy CHSM66N(DG)/F-BH-730 bifacial panels?
Both Astronergy CHSM54RNs(DG)(BLH)/F-BH-455 W and Astronergy CHSM66N(DG)/F-BH-730 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 37 Astronergy 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.