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CHSM48RN(DG)(BLH)/F-BH-450 vs CHSM66N(DG)/F-BH-720 7 of 19 identical Swap Change panels

Astronergy CHSM48RN(DG)(BLH)/F-BH-450 vs Astronergy CHSM66N(DG)/F-BH-720

Astronergy CHSM48RN(DG)(BLH)/F-BH-450
CHSM48RN(DG)(BLH)/F-BH-450
450 Wp 22.50 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Astronergy CHSM66N(DG)/F-BH-720
CHSM66N(DG)/F-BH-720
720 Wp 23.20 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

CHSM66N(DG)/F-BH-720 leads on the differences that matter

The largest is module efficiency: 0.70 pp more efficient. 7 of 19 comparable parameters are identical.

See all 12 differences
How alike are they
7 of 19 comparable
parameters are identical
identical differs
01

What actually differs

12 of 19 parameters
Parameter CHSM48RN(DG)(BLH)/F-BH-450 CHSM66N(DG)/F-BH-720 Difference
Module efficiency 22.50 % 23.20 % 0.70 pp more efficient
Rated power 450 Wp 720 Wp 270 W more power
Weight 24.5 kg 38.0 kg 13.5 kg lighter
Product warranty 25 yrs 15 yrs 10 yrs longer
Power density 225.2 Wp/m² 231.8 Wp/m² 6.6 Wp/m² higher
Open-circuit voltage 36.59 V 49.17 V 12.58 V apart
Short-circuit current 15.61 A 18.58 A 2.97 A apart
Module area 1.998 m² 3.106 m² 1.108 m² apart
Voltage at max power 30.51 V 40.81 V 10.30 V apart
Current at max power 14.75 A 17.64 A 2.89 A apart
Cell count 96 132 36 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.
CHSM48RN(DG)(BLH)/F-BH-450
15,098 kWh
CHSM66N(DG)/F-BH-720
24,157 kWh
Lifetime gap
9,059 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario CHSM48RN(DG)(BLH)/F-BH-450 CHSM66N(DG)/F-BH-720
Standard test conditions 25 °C 100.0% of rated power 450 W 720 W
Cool, bright day 40 °C 95.7% of rated power 430 W 689 W
Typical summer roof 55 °C 91.3% of rated power 411 W 657 W
Hot roof 70 °C 87.0% of rated power 391 W 626 W
03

Full specification

Parameter CHSM48RN(DG)(BLH)/F-BH-450 CHSM66N(DG)/F-BH-720 Difference
Power and efficiency
Rated power 450 Wp 720 Wp +270 W for CHSM66N(DG)/F-BH-720
Module efficiency 22.50 % 23.20 % +0.70 pp for CHSM66N(DG)/F-BH-720
Power density 225.2 Wp/m² 231.8 Wp/m² +6.6 Wp/m² for CHSM66N(DG)/F-BH-720
Open-circuit voltage 36.59 V 49.17 V 12.58 V apart
Voltage at max power 30.51 V 40.81 V 10.30 V apart
Short-circuit current 15.61 A 18.58 A 2.97 A apart
Current at max power 14.75 A 17.64 A 2.89 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 24.5 kg 38.0 kg -13.5 kg for CHSM48RN(DG)(BLH)/F-BH-450
Weight per kWp 54.4 kg/kWp 52.8 kg/kWp Effectively the same
Warranty and degradation
Product warranty 25 yrs 15 yrs +10 yrs for CHSM48RN(DG)(BLH)/F-BH-450
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 96 132 36 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#4,222 vs #1,306
CHSM66N(DG)/F-BH-720 leads by 2,916 places
Power density
#4,225 vs #1,347
CHSM66N(DG)/F-BH-720 leads by 2,878 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#8,755 vs #6,459
CHSM66N(DG)/F-BH-720 leads by 2,296 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,225 vs #339
CHSM66N(DG)/F-BH-720 leads by 5,886 places
05

More useful comparisons

Open the full database
Same series, other bin
Astronergy CHSM48RN(DG)(BLH)/F-BH-450 vs Astronergy CHSM54RN(DG)/F-BH-530
11 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM48RN(DG)(BLH)/F-BH-450 vs Astronergy CHSM54RN(DG)/F-BH-525
10 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM48RN(DG)(BLH)/F-BH-450 vs Astronergy CHSM54RN(DG)/F-BH-520
10 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM48RN(DG)(BLH)/F-BH-450 vs Astronergy CHSM54RN(DG)/F-BH-515
10 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM48RN(DG)(BLH)/F-BH-450 vs Astronergy CHSM54RN(DG)/F-BH-510
9 differences, the largest is rated power
Same series, other bin
Astronergy CHSM48RN(DG)(BLH)/F-BH-450 vs Astronergy CHSM48RN(DG)(BLH)/F-BH-470
5 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Astronergy CHSM48RN(DG)(BLH)/F-BH-450 or Astronergy CHSM66N(DG)/F-BH-720?
According to our database: Astronergy CHSM66N(DG)/F-BH-720 has higher module efficiency (23.20% vs 22.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Astronergy CHSM48RN(DG)(BLH)/F-BH-450 and Astronergy CHSM66N(DG)/F-BH-720?
Astronergy CHSM48RN(DG)(BLH)/F-BH-450 has a module efficiency of 22.50%, while Astronergy CHSM66N(DG)/F-BH-720 is 23.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Astronergy CHSM48RN(DG)(BLH)/F-BH-450 use vs Astronergy CHSM66N(DG)/F-BH-720?
Astronergy CHSM48RN(DG)(BLH)/F-BH-450 uses TOPCon cells; Astronergy CHSM66N(DG)/F-BH-720 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)(BLH)/F-BH-450 and Astronergy CHSM66N(DG)/F-BH-720?
Astronergy CHSM48RN(DG)(BLH)/F-BH-450 has a 30 years power warranty; Astronergy CHSM66N(DG)/F-BH-720 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)(BLH)/F-BH-450 and Astronergy CHSM66N(DG)/F-BH-720 bifacial panels?
Both Astronergy CHSM48RN(DG)(BLH)/F-BH-450 and Astronergy CHSM66N(DG)/F-BH-720 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 38 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.