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CHSM78N(DG)/F-BH-650W vs CHSM48RN(DG)(BLH)/F-BH-450 7 of 19 identical Swap Change panels

Astronergy CHSM78N(DG)/F-BH-650W vs Astronergy CHSM48RN(DG)(BLH)/F-BH-450

CHSM78N(DG)/F-BH-650W
650 Wp 23.30 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Astronergy CHSM48RN(DG)(BLH)/F-BH-450
CHSM48RN(DG)(BLH)/F-BH-450
450 Wp 22.50 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

CHSM78N(DG)/F-BH-650W leads on the differences that matter

The largest is module efficiency: 0.80 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 CHSM78N(DG)/F-BH-650W CHSM48RN(DG)(BLH)/F-BH-450 Difference
Module efficiency 23.30 % 22.50 % 0.80 pp more efficient
Rated power 650 Wp 450 Wp 200 W more power
Weight 34.7 kg 24.5 kg 10.2 kg lighter
Product warranty 15 yrs 25 yrs 10 yrs longer
Power density 232.5 Wp/m² 225.2 Wp/m² 7.3 Wp/m² higher
Open-circuit voltage 57.01 V 36.59 V 20.42 V apart
Module area 2.795 m² 1.998 m² 0.797 m² apart
Short-circuit current 14.51 A 15.61 A 1.10 A apart
Voltage at max power 47.12 V 30.51 V 16.61 V apart
Cell count 156 96 60 cells apart
Dimensions 2465x1134x30 mm 1762x1134x30 mm 2465x1134x30 mm vs 1762x1134x30 mm
Current at max power 13.80 A 14.75 A 0.95 A 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.
CHSM78N(DG)/F-BH-650W
21,809 kWh
CHSM48RN(DG)(BLH)/F-BH-450
15,098 kWh
Lifetime gap
6,711 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario CHSM78N(DG)/F-BH-650W CHSM48RN(DG)(BLH)/F-BH-450
Standard test conditions 25 °C 100.0% of rated power 650 W 450 W
Cool, bright day 40 °C 95.7% of rated power 622 W 430 W
Typical summer roof 55 °C 91.3% of rated power 593 W 411 W
Hot roof 70 °C 87.0% of rated power 565 W 391 W
03

Full specification

Parameter CHSM78N(DG)/F-BH-650W CHSM48RN(DG)(BLH)/F-BH-450 Difference
Power and efficiency
Rated power 650 Wp 450 Wp +200 W for CHSM78N(DG)/F-BH-650W
Module efficiency 23.30 % 22.50 % +0.80 pp for CHSM78N(DG)/F-BH-650W
Power density 232.5 Wp/m² 225.2 Wp/m² +7.3 Wp/m² for CHSM78N(DG)/F-BH-650W
Open-circuit voltage 57.01 V 36.59 V 20.42 V apart
Voltage at max power 47.12 V 30.51 V 16.61 V apart
Short-circuit current 14.51 A 15.61 A 1.10 A apart
Current at max power 13.80 A 14.75 A 0.95 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2465x1134x30 mm 1762x1134x30 mm 2465x1134x30 mm vs 1762x1134x30 mm
Module area 2.795 m² 1.998 m² 0.797 m² apart
Weight 34.7 kg 24.5 kg -10.2 kg for CHSM48RN(DG)(BLH)/F-BH-450
Weight per kWp 53.4 kg/kWp 54.4 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 25 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 156 96 60 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#1,017 vs #4,222
CHSM78N(DG)/F-BH-650W leads by 3,205 places
Power density
#1,222 vs #4,225
CHSM78N(DG)/F-BH-650W leads by 3,003 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#7,283 vs #8,755
CHSM78N(DG)/F-BH-650W leads by 1,472 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#1,318 vs #6,225
CHSM78N(DG)/F-BH-650W leads by 4,907 places
05

More useful comparisons

Open the full database
Same series, other bin
Astronergy CHSM78N(DG)/F-BH-650W vs Astronergy CHSM78N(DG)/F-BH 650W
One difference: voltage at max power
Same series, other bin
Astronergy CHSM78N(DG)/F-BH-650W vs Astronergy CHSM78N(DG)/F-BH 645W
One difference: module efficiency
Same series, other bin
Astronergy CHSM78N(DG)/F-BH-650W vs Astronergy CHSM78N(DG)/F-BH-645W
One difference: module efficiency
Same series, other bin
Astronergy CHSM78N(DG)/F-BH-650W vs Astronergy CHSM78N(DG)/F-BH 640W
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM78N(DG)/F-BH-650W vs Astronergy CHSM78N(DG)/F-BH-640W
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM78N(DG)/F-BH-650W vs Astronergy CHSM78N(DG)/F-BH 635W
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Astronergy CHSM78N(DG)/F-BH-650W or Astronergy CHSM48RN(DG)(BLH)/F-BH-450?
According to our database: Astronergy CHSM78N(DG)/F-BH-650 W has higher module efficiency (23.30% vs 22.50%). 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-650W and Astronergy CHSM48RN(DG)(BLH)/F-BH-450?
Astronergy CHSM78N(DG)/F-BH-650 W has a module efficiency of 23.30%, while Astronergy CHSM48RN(DG)(BLH)/F-BH-450 is 22.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Astronergy CHSM78N(DG)/F-BH-650W use vs Astronergy CHSM48RN(DG)(BLH)/F-BH-450?
Astronergy CHSM78N(DG)/F-BH-650 W uses TOPCon cells; Astronergy CHSM48RN(DG)(BLH)/F-BH-450 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-650W and Astronergy CHSM48RN(DG)(BLH)/F-BH-450?
Astronergy CHSM78N(DG)/F-BH-650 W has a 30 years power warranty; Astronergy CHSM48RN(DG)(BLH)/F-BH-450 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-650W and Astronergy CHSM48RN(DG)(BLH)/F-BH-450 bifacial panels?
Both Astronergy CHSM78N(DG)/F-BH-650 W and Astronergy CHSM48RN(DG)(BLH)/F-BH-450 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.