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CHSM48RN(DG)(BLH)/F-BH-470 vs CHSM48RN(DG)/F-BH-450 15 of 19 identical Swap Change panels

Astronergy CHSM48RN(DG)(BLH)/F-BH-470 vs Astronergy CHSM48RN(DG)/F-BH-450

Astronergy CHSM48RN(DG)(BLH)/F-BH-470
CHSM48RN(DG)(BLH)/F-BH-470
470 Wp 23.50 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Astronergy CHSM48RN(DG)/F-BH-450
CHSM48RN(DG)/F-BH-450
450 Wp 22.50 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

CHSM48RN(DG)(BLH)/F-BH-470 leads on the differences that matter

The largest is module efficiency: 1.00 pp more efficient. 15 of 19 comparable parameters are identical.

See all 4 differences
How alike are they
15 of 19 comparable
parameters are identical
identical differs
01

What actually differs

4 of 19 parameters
Parameter CHSM48RN(DG)(BLH)/F-BH-470 CHSM48RN(DG)/F-BH-450 Difference
Module efficiency 23.50 % 22.50 % 1.00 pp more efficient
Power density 235.2 Wp/m² 225.2 Wp/m² 10.0 Wp/m² higher
Rated power 470 Wp 450 Wp 20 W more power
Weight per kWp 52.1 kg/kWp 54.4 kg/kWp 2.3 kg/kWp lighter
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-470
15,769 kWh
CHSM48RN(DG)/F-BH-450
15,098 kWh
Lifetime gap
671 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario CHSM48RN(DG)(BLH)/F-BH-470 CHSM48RN(DG)/F-BH-450
Standard test conditions 25 °C 100.0% of rated power 470 W 450 W
Cool, bright day 40 °C 95.7% of rated power 450 W 430 W
Typical summer roof 55 °C 91.3% of rated power 429 W 411 W
Hot roof 70 °C 87.0% of rated power 409 W 391 W
03

Full specification

Parameter CHSM48RN(DG)(BLH)/F-BH-470 CHSM48RN(DG)/F-BH-450 Difference
Power and efficiency
Rated power 470 Wp 450 Wp +20 W for CHSM48RN(DG)(BLH)/F-BH-470
Module efficiency 23.50 % 22.50 % +1.00 pp for CHSM48RN(DG)(BLH)/F-BH-470
Power density 235.2 Wp/m² 225.2 Wp/m² +10.0 Wp/m² for CHSM48RN(DG)(BLH)/F-BH-470
Open-circuit voltage 36.95 V 36.42 V Effectively the same
Voltage at max power 30.82 V 30.33 V Effectively the same
Short-circuit current 16.00 A 15.68 A Effectively the same
Current at max power 15.25 A 14.83 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1762x1134x30 mm 1762x1134x30 mm Same
Module area 1.998 m² 1.998 m² Same
Weight 24.5 kg 24.5 kg Same
Weight per kWp 52.1 kg/kWp 54.4 kg/kWp -2.3 kg/kWp for CHSM48RN(DG)(BLH)/F-BH-470
Warranty and degradation
Product warranty 25 yrs 25 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 96 96 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#716 vs #4,222
CHSM48RN(DG)(BLH)/F-BH-470 leads by 3,506 places
Power density
#674 vs #4,225
CHSM48RN(DG)(BLH)/F-BH-470 leads by 3,551 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#5,602 vs #8,755
CHSM48RN(DG)(BLH)/F-BH-470 leads by 3,153 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#4,371 vs #6,225
CHSM48RN(DG)(BLH)/F-BH-470 leads by 1,854 places
05

More useful comparisons

Open the full database
Same series, other bin
Astronergy CHSM48RN(DG)(BLH)/F-BH-470 vs Astronergy CHSM54RN(DG)/F-BH-530
9 differences, the largest is rated power
Same series, other bin
Astronergy CHSM48RN(DG)(BLH)/F-BH-470 vs Astronergy CHSM54RN(DG)/F-BH-525
7 differences, the largest is rated power
Same series, other bin
Astronergy CHSM48RN(DG)(BLH)/F-BH-470 vs Astronergy CHSM54RN(DG)/F-BH-520
7 differences, the largest is rated power
Same series, other bin
Astronergy CHSM48RN(DG)(BLH)/F-BH-470 vs Astronergy CHSM54RN(DG)/F-BH-515
9 differences, the largest is rated power
Same series, other bin
Astronergy CHSM48RN(DG)(BLH)/F-BH-470 vs Astronergy CHSM54RN(DG)/F-BH-510
9 differences, the largest is rated power
Same series, other bin
Astronergy CHSM48RN(DG)(BLH)/F-BH-470 vs Astronergy CHSM48RN(DG)(BLH)/F-BH-465
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Astronergy CHSM48RN(DG)(BLH)/F-BH-470 or Astronergy CHSM48RN(DG)/F-BH-450?
According to our database: Astronergy CHSM48RN(DG)(BLH)/F-BH-470 has higher module efficiency (23.50% 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-470 and Astronergy CHSM48RN(DG)/F-BH-450?
Astronergy CHSM48RN(DG)(BLH)/F-BH-470 has a module efficiency of 23.50%, while Astronergy CHSM48RN(DG)/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 CHSM48RN(DG)(BLH)/F-BH-470 use vs Astronergy CHSM48RN(DG)/F-BH-450?
Astronergy CHSM48RN(DG)(BLH)/F-BH-470 uses TOPCon cells; Astronergy CHSM48RN(DG)/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 CHSM48RN(DG)(BLH)/F-BH-470 and Astronergy CHSM48RN(DG)/F-BH-450?
Astronergy CHSM48RN(DG)(BLH)/F-BH-470 has a 30 years power warranty; Astronergy CHSM48RN(DG)/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 CHSM48RN(DG)(BLH)/F-BH-470 and Astronergy CHSM48RN(DG)/F-BH-450 bifacial panels?
Both Astronergy CHSM48RN(DG)(BLH)/F-BH-470 and Astronergy CHSM48RN(DG)/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.