Skip to main content
CHSM78N(DG)/F-BH-640 vs CHSM72N(DG)/F-BH 600 10 of 19 identical Swap Change panels

Astronergy CHSM78N(DG)/F-BH-640 vs Astronergy CHSM72N(DG)/F-BH 600

Astronergy CHSM78N(DG)/F-BH-640
CHSM78N(DG)/F-BH-640
640 Wp 22.90 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Astronergy CHSM72N(DG)/F-BH 600
CHSM72N(DG)/F-BH 600
600 Wp 23.20 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

9 differences, and they point both ways

The largest is rated power: 40 W more power. 10 of 19 comparable parameters are identical.

See all 9 differences
How alike are they
10 of 19 comparable
parameters are identical
identical differs
01

What actually differs

9 of 19 parameters
Parameter CHSM78N(DG)/F-BH-640 CHSM72N(DG)/F-BH 600 Difference
Rated power 640 Wp 600 Wp 40 W more power
Open-circuit voltage 56.61 V 52.10 V 4.51 V apart
Module area 2.795 m² 2.583 m² 0.212 m² apart
Weight 34.7 kg 32.1 kg 2.6 kg lighter
Module efficiency 22.90 % 23.20 % 0.30 pp more efficient
Power density 229.0 Wp/m² 232.3 Wp/m² 3.3 Wp/m² higher
Cell count 156 144 12 cells apart
Voltage at max power 46.79 V 43.78 V 3.01 V apart
Dimensions 2465x1134x30 mm 2278x1134x30 mm 2465x1134x30 mm vs 2278x1134x30 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.
CHSM78N(DG)/F-BH-640
21,473 kWh
CHSM72N(DG)/F-BH 600
20,131 kWh
Lifetime gap
1,342 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario CHSM78N(DG)/F-BH-640 CHSM72N(DG)/F-BH 600
Standard test conditions 25 °C 100.0% of rated power 640 W 600 W
Cool, bright day 40 °C 95.7% of rated power 612 W 574 W
Typical summer roof 55 °C 91.3% of rated power 584 W 548 W
Hot roof 70 °C 87.0% of rated power 556 W 522 W
03

Full specification

Parameter CHSM78N(DG)/F-BH-640 CHSM72N(DG)/F-BH 600 Difference
Power and efficiency
Rated power 640 Wp 600 Wp +40 W for CHSM78N(DG)/F-BH-640
Module efficiency 22.90 % 23.20 % +0.30 pp for CHSM72N(DG)/F-BH 600
Power density 229.0 Wp/m² 232.3 Wp/m² +3.3 Wp/m² for CHSM72N(DG)/F-BH 600
Open-circuit voltage 56.61 V 52.10 V 4.51 V apart
Voltage at max power 46.79 V 43.78 V 3.01 V apart
Short-circuit current 14.35 A 14.61 A Effectively the same
Current at max power 13.68 A 13.70 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2465x1134x30 mm 2278x1134x30 mm 2465x1134x30 mm vs 2278x1134x30 mm
Module area 2.795 m² 2.583 m² 0.212 m² apart
Weight 34.7 kg 32.1 kg -2.6 kg for CHSM72N(DG)/F-BH 600
Weight per kWp 54.2 kg/kWp 53.5 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 156 144 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#2,359 vs #1,306
CHSM72N(DG)/F-BH 600 leads by 1,053 places
Power density
#2,389 vs #1,252
CHSM72N(DG)/F-BH 600 leads by 1,137 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#8,447 vs #7,477
CHSM72N(DG)/F-BH 600 leads by 970 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#1,704 vs #2,413
CHSM78N(DG)/F-BH-640 leads by 709 places
05

More useful comparisons

Open the full database
Same series, other bin
Astronergy CHSM78N(DG)/F-BH-640 vs Astronergy CHSM78N(DG)/F-BH-650
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM78N(DG)/F-BH-640 vs Astronergy CHSM78N(DG)/F-BH 650W
4 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM78N(DG)/F-BH-640 vs Astronergy CHSM78N(DG)/F-BH-650W
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM78N(DG)/F-BH-640 vs Astronergy CHSM78N(DG)/F-BH-645
One difference: module efficiency
Same series, other bin
Astronergy CHSM78N(DG)/F-BH-640 vs Astronergy CHSM78N(DG)/F-BH 645W
2 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM78N(DG)/F-BH-640 vs Astronergy CHSM78N(DG)/F-BH-645W
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Astronergy CHSM78N(DG)/F-BH-640 or Astronergy CHSM72N(DG)/F-BH 600?
According to our database: Astronergy CHSM72N(DG)/F-BH 600 has higher module efficiency (23.20% vs 22.90%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Astronergy CHSM78N(DG)/F-BH-640 and Astronergy CHSM72N(DG)/F-BH 600?
Astronergy CHSM78N(DG)/F-BH-640 has a module efficiency of 22.90%, while Astronergy CHSM72N(DG)/F-BH 600 is 23.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Astronergy CHSM78N(DG)/F-BH-640 use vs Astronergy CHSM72N(DG)/F-BH 600?
Astronergy CHSM78N(DG)/F-BH-640 uses TOPCon cells; Astronergy CHSM72N(DG)/F-BH 600 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 CHSM78N(DG)/F-BH-640 and Astronergy CHSM72N(DG)/F-BH 600?
Astronergy CHSM78N(DG)/F-BH-640 has a 30 years power warranty; Astronergy CHSM72N(DG)/F-BH 600 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 CHSM78N(DG)/F-BH-640 and Astronergy CHSM72N(DG)/F-BH 600 bifacial panels?
Both Astronergy CHSM78N(DG)/F-BH-640 and Astronergy CHSM72N(DG)/F-BH 600 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.