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450 vs 470 14 of 19 identical Swap Change panels

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

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

470 leads on the differences that matter

The largest is module efficiency: 1.00 pp more efficient. 14 of 19 comparable parameters are identical.

See all 5 differences
How alike are they
14 of 19 comparable
parameters are identical
identical differs
01

What actually differs

5 of 19 parameters
Parameter 450 470 Difference
Module efficiency 22.50 % 23.50 % 1.00 pp more efficient
Power density 225.2 Wp/m² 235.2 Wp/m² 10.0 Wp/m² higher
Rated power 450 Wp 470 Wp 20 W more power
Weight per kWp 54.4 kg/kWp 52.1 kg/kWp 2.3 kg/kWp lighter
Current at max power 14.75 A 15.25 A 0.50 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.
450
15,098 kWh
470
15,769 kWh
Lifetime gap
671 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 450 470
Standard test conditions 25 °C 100.0% of rated power 450 W 470 W
Cool, bright day 40 °C 95.7% of rated power 430 W 450 W
Typical summer roof 55 °C 91.3% of rated power 411 W 429 W
Hot roof 70 °C 87.0% of rated power 391 W 409 W
03

Full specification

Parameter 450 470 Difference
Power and efficiency
Rated power 450 Wp 470 Wp +20 W for 470
Module efficiency 22.50 % 23.50 % +1.00 pp for 470
Power density 225.2 Wp/m² 235.2 Wp/m² +10.0 Wp/m² for 470
Open-circuit voltage 36.59 V 36.95 V Effectively the same
Voltage at max power 30.51 V 30.82 V Effectively the same
Short-circuit current 15.61 A 16.00 A Effectively the same
Current at max power 14.75 A 15.25 A 0.50 A apart
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 54.4 kg/kWp 52.1 kg/kWp -2.3 kg/kWp for 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
#4,222 vs #716
470 leads by 3,506 places
Power density
#4,225 vs #674
470 leads by 3,551 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#8,755 vs #5,602
470 leads by 3,153 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,225 vs #4,371
470 leads by 1,854 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-465
3 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 CHSM48RN(DG)(BLH)/F-BH-470?
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-450 and Astronergy CHSM48RN(DG)(BLH)/F-BH-470?
Astronergy CHSM48RN(DG)(BLH)/F-BH-450 has a module efficiency of 22.50%, while Astronergy CHSM48RN(DG)(BLH)/F-BH-470 is 23.50%. 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-450 use vs Astronergy CHSM48RN(DG)(BLH)/F-BH-470?
Astronergy CHSM48RN(DG)(BLH)/F-BH-450 uses TOPCon cells; Astronergy CHSM48RN(DG)(BLH)/F-BH-470 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 CHSM48RN(DG)(BLH)/F-BH-470?
Astronergy CHSM48RN(DG)(BLH)/F-BH-450 has a 30 years power warranty; Astronergy CHSM48RN(DG)(BLH)/F-BH-470 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 CHSM48RN(DG)(BLH)/F-BH-470 bifacial panels?
Both Astronergy CHSM48RN(DG)(BLH)/F-BH-450 and Astronergy CHSM48RN(DG)(BLH)/F-BH-470 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 36 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.