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CHSM66N(DG)/F-BH-705 vs ASTRO N5s CHSM54N-HC-430W 6 of 19 identical Swap Change panels

Astronergy CHSM66N(DG)/F-BH-705 vs Astronergy ASTRO N5s CHSM54N-HC-430W

CHSM66N(DG)/F-BH-705
705 Wp 22.70 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
ASTRO N5s CHSM54N-HC-430W
430 Wp 22.00 % TOPCon
Open panel page Datasheet PDF
The verdict

CHSM66N(DG)/F-BH-705 leads on the differences that matter

The largest is module efficiency: 0.70 pp more efficient. 6 of 19 comparable parameters are identical.

See all 13 differences
How alike are they
6 of 19 comparable
parameters are identical
identical differs
01

What actually differs

13 of 19 parameters
Parameter CHSM66N(DG)/F-BH-705 ASTRO N5s CHSM54N-HC-430W Difference
Module efficiency 22.70 % 22.00 % 0.70 pp more efficient
Rated power 705 Wp 430 Wp 275 W more power
Weight 38.0 kg 21.3 kg 16.7 kg lighter
Power density 227.0 Wp/m² 220.2 Wp/m² 6.8 Wp/m² higher
Open-circuit voltage 48.57 V 38.40 V 10.17 V apart
Short-circuit current 18.43 A 14.09 A 4.34 A apart
Module area 3.106 m² 1.953 m² 1.154 m² apart
Weight per kWp 53.9 kg/kWp 49.5 kg/kWp 4.4 kg/kWp lighter
Voltage at max power 40.31 V 32.27 V 8.04 V apart
Current at max power 17.49 A 13.33 A 4.16 A apart
Cell count 132 108 24 cells apart
Bifacial Yes No Yes vs No
Dimensions 2384x1303x33 mm 1722x1134x30 mm 2384x1303x33 mm vs 1722x1134x30 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.
CHSM66N(DG)/F-BH-705
23,654 kWh
ASTRO N5s CHSM54N-HC-430W
14,427 kWh
Lifetime gap
9,227 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario CHSM66N(DG)/F-BH-705 ASTRO N5s CHSM54N-HC-430W
Standard test conditions 25 °C 100.0% of rated power 705 W 430 W
Cool, bright day 40 °C 95.7% of rated power 674 W 411 W
Typical summer roof 55 °C 91.3% of rated power 644 W 393 W
Hot roof 70 °C 87.0% of rated power 613 W 374 W
03

Full specification

Parameter CHSM66N(DG)/F-BH-705 ASTRO N5s CHSM54N-HC-430W Difference
Power and efficiency
Rated power 705 Wp 430 Wp +275 W for CHSM66N(DG)/F-BH-705
Module efficiency 22.70 % 22.00 % +0.70 pp for CHSM66N(DG)/F-BH-705
Power density 227.0 Wp/m² 220.2 Wp/m² +6.8 Wp/m² for CHSM66N(DG)/F-BH-705
Open-circuit voltage 48.57 V 38.40 V 10.17 V apart
Voltage at max power 40.31 V 32.27 V 8.04 V apart
Short-circuit current 18.43 A 14.09 A 4.34 A apart
Current at max power 17.49 A 13.33 A 4.16 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2384x1303x33 mm 1722x1134x30 mm 2384x1303x33 mm vs 1722x1134x30 mm
Module area 3.106 m² 1.953 m² 1.154 m² apart
Weight 38.0 kg 21.3 kg -16.7 kg for ASTRO N5s CHSM54N-HC-430W
Weight per kWp 53.9 kg/kWp 49.5 kg/kWp -4.4 kg/kWp for ASTRO N5s CHSM54N-HC-430W
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 132 108 24 cells apart
Bifacial Yes No Yes vs No
04

Against the whole database

14,005 panels
Efficiency
#3,307 vs #6,517
CHSM66N(DG)/F-BH-705 leads by 3,210 places
Power density
#3,361 vs #6,481
CHSM66N(DG)/F-BH-705 leads by 3,120 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#8,027 vs #3,084
ASTRO N5s CHSM54N-HC-430W leads by 4,943 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#747 vs #9,549
CHSM66N(DG)/F-BH-705 leads by 8,802 places
05

More useful comparisons

Open the full database
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-705 vs Astronergy CHSM66N(DG)/F-BH-735
6 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-705 vs Astronergy CHSM66N(DG)/F-BH-730
4 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-705 vs Astronergy CHSM66N(DG)/F-BH-725
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-705 vs Astronergy CHSM66N(DG)/F-BH-720
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-705 vs Astronergy CHSM66N(DG)/F-BH-715
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-705 vs Astronergy CHSM66N(DG)/F-BH-710
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Astronergy CHSM66N(DG)/F-BH-705 or Astronergy ASTRO N5s CHSM54N-HC-430W?
According to our database: Astronergy CHSM66N(DG)/F-BH-705 has higher module efficiency (22.70% vs 22.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Astronergy CHSM66N(DG)/F-BH-705 and Astronergy ASTRO N5s CHSM54N-HC-430W?
Astronergy CHSM66N(DG)/F-BH-705 has a module efficiency of 22.70%, while Astronergy ASTRO N5s CHSM54N-HC-430 W is 22.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Astronergy CHSM66N(DG)/F-BH-705 use vs Astronergy ASTRO N5s CHSM54N-HC-430W?
Astronergy CHSM66N(DG)/F-BH-705 uses TOPCon cells; Astronergy ASTRO N5s CHSM54N-HC-430 W 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 CHSM66N(DG)/F-BH-705 and Astronergy ASTRO N5s CHSM54N-HC-430W?
Astronergy CHSM66N(DG)/F-BH-705 has a 30 years power warranty; Astronergy ASTRO N5s CHSM54N-HC-430 W 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 CHSM66N(DG)/F-BH-705 and Astronergy ASTRO N5s CHSM54N-HC-430W bifacial panels?
Astronergy CHSM66N(DG)/F-BH-705 is bifacial (captures light from both faces); Astronergy ASTRO N5s CHSM54N-HC-430 W is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

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.