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CHSM72N(DG)/F-BH 600 vs CHSM66N(DG)/F-BH-735 8 of 19 identical Swap Change panels

Astronergy CHSM72N(DG)/F-BH 600 vs Astronergy CHSM66N(DG)/F-BH-735

Astronergy CHSM72N(DG)/F-BH 600
CHSM72N(DG)/F-BH 600
600 Wp 23.20 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Astronergy CHSM66N(DG)/F-BH-735
CHSM66N(DG)/F-BH-735
735 Wp 23.70 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

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

The largest is rated power: 135 W more power. 8 of 19 comparable parameters are identical.

See all 11 differences
How alike are they
8 of 19 comparable
parameters are identical
identical differs
01

What actually differs

11 of 19 parameters
Parameter CHSM72N(DG)/F-BH 600 CHSM66N(DG)/F-BH-735 Difference
Rated power 600 Wp 735 Wp 135 W more power
Module efficiency 23.20 % 23.70 % 0.50 pp more efficient
Weight 32.1 kg 38.0 kg 5.9 kg lighter
Short-circuit current 14.61 A 18.72 A 4.11 A apart
Module area 2.583 m² 3.106 m² 0.523 m² apart
Power density 232.3 Wp/m² 236.6 Wp/m² 4.3 Wp/m² higher
Open-circuit voltage 52.10 V 49.77 V 2.33 V apart
Current at max power 13.70 A 17.75 A 4.05 A apart
Cell count 144 132 12 cells apart
Voltage at max power 43.78 V 41.41 V 2.37 V apart
Dimensions 2278x1134x30 mm 2384x1303x33 mm 2278x1134x30 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.
CHSM72N(DG)/F-BH 600
20,131 kWh
CHSM66N(DG)/F-BH-735
24,661 kWh
Lifetime gap
4,530 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario CHSM72N(DG)/F-BH 600 CHSM66N(DG)/F-BH-735
Standard test conditions 25 °C 100.0% of rated power 600 W 735 W
Cool, bright day 40 °C 95.7% of rated power 574 W 703 W
Typical summer roof 55 °C 91.3% of rated power 548 W 671 W
Hot roof 70 °C 87.0% of rated power 522 W 639 W
03

Full specification

Parameter CHSM72N(DG)/F-BH 600 CHSM66N(DG)/F-BH-735 Difference
Power and efficiency
Rated power 600 Wp 735 Wp +135 W for CHSM66N(DG)/F-BH-735
Module efficiency 23.20 % 23.70 % +0.50 pp for CHSM66N(DG)/F-BH-735
Power density 232.3 Wp/m² 236.6 Wp/m² +4.3 Wp/m² for CHSM66N(DG)/F-BH-735
Open-circuit voltage 52.10 V 49.77 V 2.33 V apart
Voltage at max power 43.78 V 41.41 V 2.37 V apart
Short-circuit current 14.61 A 18.72 A 4.11 A apart
Current at max power 13.70 A 17.75 A 4.05 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2278x1134x30 mm 2384x1303x33 mm 2278x1134x30 mm vs 2384x1303x33 mm
Module area 2.583 m² 3.106 m² 0.523 m² apart
Weight 32.1 kg 38.0 kg -5.9 kg for CHSM72N(DG)/F-BH 600
Weight per kWp 53.5 kg/kWp 51.7 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 15 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 144 132 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#1,306 vs #517
CHSM66N(DG)/F-BH-735 leads by 789 places
Power density
#1,252 vs #582
CHSM66N(DG)/F-BH-735 leads by 670 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#7,477 vs #5,081
CHSM66N(DG)/F-BH-735 leads by 2,396 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#2,413 vs #160
CHSM66N(DG)/F-BH-735 leads by 2,253 places
05

More useful comparisons

Open the full database
Same series, other bin
Astronergy CHSM72N(DG)/F-BH 600 vs Astronergy CHSM78N(DG)/F-BH-650
7 differences, the largest is rated power
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Astronergy CHSM72N(DG)/F-BH 600 vs Astronergy CHSM78N(DG)/F-BH 650W
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Astronergy CHSM72N(DG)/F-BH 600 vs Astronergy CHSM78N(DG)/F-BH-650W
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Astronergy CHSM72N(DG)/F-BH 600 vs Astronergy CHSM78N(DG)/F-BH-645
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Astronergy CHSM72N(DG)/F-BH 600 vs Astronergy CHSM78N(DG)/F-BH 645W
7 differences, the largest is rated power
Same series, other bin
Astronergy CHSM72N(DG)/F-BH 600 vs Astronergy CHSM78N(DG)/F-BH-645W
7 differences, the largest is rated power
06

Written summary

07

Questions about this pairing

Which panel is better: Astronergy CHSM72N(DG)/F-BH 600 or Astronergy CHSM66N(DG)/F-BH-735?
According to our database: Astronergy CHSM66N(DG)/F-BH-735 has higher module efficiency (23.70% vs 23.20%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Astronergy CHSM72N(DG)/F-BH 600 and Astronergy CHSM66N(DG)/F-BH-735?
Astronergy CHSM72N(DG)/F-BH 600 has a module efficiency of 23.20%, while Astronergy CHSM66N(DG)/F-BH-735 is 23.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Astronergy CHSM72N(DG)/F-BH 600 use vs Astronergy CHSM66N(DG)/F-BH-735?
Astronergy CHSM72N(DG)/F-BH 600 uses TOPCon cells; Astronergy CHSM66N(DG)/F-BH-735 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 CHSM72N(DG)/F-BH 600 and Astronergy CHSM66N(DG)/F-BH-735?
Astronergy CHSM72N(DG)/F-BH 600 has a 30 years power warranty; Astronergy CHSM66N(DG)/F-BH-735 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 CHSM72N(DG)/F-BH 600 and Astronergy CHSM66N(DG)/F-BH-735 bifacial panels?
Both Astronergy CHSM72N(DG)/F-BH 600 and Astronergy CHSM66N(DG)/F-BH-735 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 41 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.