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CHSM66RN(DG)/F-BH-650W vs CHSM66N(DG)/F-BH-720 9 of 19 identical Swap Change panels

Astronergy CHSM66RN(DG)/F-BH-650W vs Astronergy CHSM66N(DG)/F-BH-720

Astronergy CHSM66RN(DG)/F-BH-650W
CHSM66RN(DG)/F-BH-650W
650 Wp 24.10 % 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

CHSM66RN(DG)/F-BH-650W leads on the differences that matter

The largest is module efficiency: 0.90 pp more efficient. 9 of 19 comparable parameters are identical.

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

What actually differs

10 of 19 parameters
Parameter CHSM66RN(DG)/F-BH-650W CHSM66N(DG)/F-BH-720 Difference
Module efficiency 24.10 % 23.20 % 0.90 pp more efficient
Rated power 650 Wp 720 Wp 70 W more power
Weight 31.6 kg 38.0 kg 6.4 kg lighter
Power density 240.6 Wp/m² 231.8 Wp/m² 8.9 Wp/m² higher
Short-circuit current 16.58 A 18.58 A 2.00 A apart
Module area 2.701 m² 3.106 m² 0.405 m² apart
Weight per kWp 48.7 kg/kWp 52.8 kg/kWp 4.1 kg/kWp lighter
Current at max power 15.39 A 17.64 A 2.25 A apart
Dimensions 2382x1134x30 mm 2384x1303x33 mm 2382x1134x30 mm vs 2384x1303x33 mm
Voltage at max power 42.24 V 40.81 V 1.43 V apart
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.
CHSM66RN(DG)/F-BH-650W
21,809 kWh
CHSM66N(DG)/F-BH-720
24,157 kWh
Lifetime gap
2,348 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario CHSM66RN(DG)/F-BH-650W CHSM66N(DG)/F-BH-720
Standard test conditions 25 °C 100.0% of rated power 650 W 720 W
Cool, bright day 40 °C 95.7% of rated power 622 W 689 W
Typical summer roof 55 °C 91.3% of rated power 593 W 657 W
Hot roof 70 °C 87.0% of rated power 565 W 626 W
03

Full specification

Parameter CHSM66RN(DG)/F-BH-650W CHSM66N(DG)/F-BH-720 Difference
Power and efficiency
Rated power 650 Wp 720 Wp +70 W for CHSM66N(DG)/F-BH-720
Module efficiency 24.10 % 23.20 % +0.90 pp for CHSM66RN(DG)/F-BH-650W
Power density 240.6 Wp/m² 231.8 Wp/m² +8.9 Wp/m² for CHSM66RN(DG)/F-BH-650W
Open-circuit voltage 49.87 V 49.17 V Effectively the same
Voltage at max power 42.24 V 40.81 V 1.43 V apart
Short-circuit current 16.58 A 18.58 A 2.00 A apart
Current at max power 15.39 A 17.64 A 2.25 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2382x1134x30 mm 2384x1303x33 mm 2382x1134x30 mm vs 2384x1303x33 mm
Module area 2.701 m² 3.106 m² 0.405 m² apart
Weight 31.6 kg 38.0 kg -6.4 kg for CHSM66RN(DG)/F-BH-650W
Weight per kWp 48.7 kg/kWp 52.8 kg/kWp -4.1 kg/kWp for CHSM66RN(DG)/F-BH-650W
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 132 132 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#219 vs #1,306
CHSM66RN(DG)/F-BH-650W leads by 1,087 places
Power density
#233 vs #1,347
CHSM66RN(DG)/F-BH-650W leads by 1,114 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#2,420 vs #6,459
CHSM66RN(DG)/F-BH-650W leads by 4,039 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#866 vs #339
CHSM66N(DG)/F-BH-720 leads by 527 places
05

More useful comparisons

Open the full database
Same series, other bin
Astronergy CHSM66RN(DG)/F-BH-650W vs Astronergy CHSM66RN(DG)/F-BH-650
The same specification on paper
Same series, other bin
Astronergy CHSM66RN(DG)/F-BH-650W vs Astronergy CHSM66RN(DG)/F-BH-645W
One difference: module efficiency
Same series, other bin
Astronergy CHSM66RN(DG)/F-BH-650W vs Astronergy CHSM66RN(DG)/F-BH-645
One difference: module efficiency
Same series, other bin
Astronergy CHSM66RN(DG)/F-BH-650W vs Astronergy CHSM66RN(DG)/F-BH-640W
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66RN(DG)/F-BH-650W vs Astronergy CHSM66RN(DG)/F-BH-640
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66RN(DG)/F-BH-650W vs Astronergy CHSM66RN(DG)/F-BH-635W
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Astronergy CHSM66RN(DG)/F-BH-650W or Astronergy CHSM66N(DG)/F-BH-720?
According to our database: Astronergy CHSM66RN(DG)/F-BH-650 W has higher module efficiency (24.10% vs 23.20%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Astronergy CHSM66RN(DG)/F-BH-650W and Astronergy CHSM66N(DG)/F-BH-720?
Astronergy CHSM66RN(DG)/F-BH-650 W has a module efficiency of 24.10%, 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 CHSM66RN(DG)/F-BH-650W use vs Astronergy CHSM66N(DG)/F-BH-720?
Astronergy CHSM66RN(DG)/F-BH-650 W 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 CHSM66RN(DG)/F-BH-650W and Astronergy CHSM66N(DG)/F-BH-720?
Astronergy CHSM66RN(DG)/F-BH-650 W 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 CHSM66RN(DG)/F-BH-650W and Astronergy CHSM66N(DG)/F-BH-720 bifacial panels?
Both Astronergy CHSM66RN(DG)/F-BH-650 W 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.

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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.