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CHSM66N(DG)/F-BH-735 vs CHSM54RNs(DG)(BLH)/F-BH-440W 6 of 19 identical Swap Change panels

Astronergy CHSM66N(DG)/F-BH-735 vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W

Astronergy CHSM66N(DG)/F-BH-735
CHSM66N(DG)/F-BH-735
735 Wp 23.70 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
CHSM54RNs(DG)(BLH)/F-BH-440W
440 Wp 22.00 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

CHSM66N(DG)/F-BH-735 leads on the differences that matter

The largest is module efficiency: 1.70 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 CHSM66N(DG)/F-BH-735 CHSM54RNs(DG)(BLH)/F-BH-440W Difference
Module efficiency 23.70 % 22.00 % 1.70 pp more efficient
Rated power 735 Wp 440 Wp 295 W more power
Power density 236.6 Wp/m² 220.2 Wp/m² 16.4 Wp/m² higher
Weight 38.0 kg 21.5 kg 16.5 kg lighter
Product warranty 15 yrs 25 yrs 10 yrs longer
Open-circuit voltage 49.77 V 39.00 V 10.77 V apart
Short-circuit current 18.72 A 14.10 A 4.62 A apart
Module area 3.106 m² 1.998 m² 1.108 m² apart
Weight per kWp 51.7 kg/kWp 48.9 kg/kWp 2.8 kg/kWp lighter
Voltage at max power 41.41 V 33.05 V 8.36 V apart
Current at max power 17.75 A 13.31 A 4.44 A apart
Cell count 132 108 24 cells apart
Dimensions 2384x1303x33 mm 1762x1134x30 mm 2384x1303x33 mm vs 1762x1134x30 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.
CHSM66N(DG)/F-BH-735
24,661 kWh
CHSM54RNs(DG)(BLH)/F-BH-440W
14,763 kWh
Lifetime gap
9,898 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario CHSM66N(DG)/F-BH-735 CHSM54RNs(DG)(BLH)/F-BH-440W
Standard test conditions 25 °C 100.0% of rated power 735 W 440 W
Cool, bright day 40 °C 95.7% of rated power 703 W 421 W
Typical summer roof 55 °C 91.3% of rated power 671 W 402 W
Hot roof 70 °C 87.0% of rated power 639 W 383 W
03

Full specification

Parameter CHSM66N(DG)/F-BH-735 CHSM54RNs(DG)(BLH)/F-BH-440W Difference
Power and efficiency
Rated power 735 Wp 440 Wp +295 W for CHSM66N(DG)/F-BH-735
Module efficiency 23.70 % 22.00 % +1.70 pp for CHSM66N(DG)/F-BH-735
Power density 236.6 Wp/m² 220.2 Wp/m² +16.4 Wp/m² for CHSM66N(DG)/F-BH-735
Open-circuit voltage 49.77 V 39.00 V 10.77 V apart
Voltage at max power 41.41 V 33.05 V 8.36 V apart
Short-circuit current 18.72 A 14.10 A 4.62 A apart
Current at max power 17.75 A 13.31 A 4.44 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2384x1303x33 mm 1762x1134x30 mm 2384x1303x33 mm vs 1762x1134x30 mm
Module area 3.106 m² 1.998 m² 1.108 m² apart
Weight 38.0 kg 21.5 kg -16.5 kg for CHSM54RNs(DG)(BLH)/F-BH-440W
Weight per kWp 51.7 kg/kWp 48.9 kg/kWp -2.8 kg/kWp for CHSM54RNs(DG)(BLH)/F-BH-440W
Warranty and degradation
Product warranty 15 yrs 25 yrs +10 yrs for CHSM54RNs(DG)(BLH)/F-BH-440W
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 132 108 24 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#517 vs #6,517
CHSM66N(DG)/F-BH-735 leads by 6,000 places
Power density
#582 vs #6,328
CHSM66N(DG)/F-BH-735 leads by 5,746 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#5,081 vs #2,535
CHSM54RNs(DG)(BLH)/F-BH-440W leads by 2,546 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#160 vs #7,094
CHSM66N(DG)/F-BH-735 leads by 6,934 places
05

More useful comparisons

Open the full database
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-735 vs Astronergy CHSM66N(DG)/F-BH-730
One difference: module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-735 vs Astronergy CHSM66N(DG)/F-BH-725
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-735 vs Astronergy CHSM66N(DG)/F-BH-720
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-735 vs Astronergy CHSM66N(DG)/F-BH-715
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-735 vs Astronergy CHSM66N(DG)/F-BH-710
4 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-460W
4 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Astronergy CHSM66N(DG)/F-BH-735 or Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W?
According to our database: Astronergy CHSM66N(DG)/F-BH-735 has higher module efficiency (23.70% vs 22.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Astronergy CHSM66N(DG)/F-BH-735 and Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W?
Astronergy CHSM66N(DG)/F-BH-735 has a module efficiency of 23.70%, while Astronergy CHSM54RNs(DG)(BLH)/F-BH-440 W is 22.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Astronergy CHSM66N(DG)/F-BH-735 use vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W?
Astronergy CHSM66N(DG)/F-BH-735 uses TOPCon cells; Astronergy CHSM54RNs(DG)(BLH)/F-BH-440 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 Astronergy CHSM66N(DG)/F-BH-735 and Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W?
Astronergy CHSM66N(DG)/F-BH-735 has a 30 years power warranty; Astronergy CHSM54RNs(DG)(BLH)/F-BH-440 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 Astronergy CHSM66N(DG)/F-BH-735 and Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W bifacial panels?
Both Astronergy CHSM66N(DG)/F-BH-735 and Astronergy CHSM54RNs(DG)(BLH)/F-BH-440 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.

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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.