CHSM66N(DG)/F-BH-730 vs CHSM54N-HC-425W 7 of 19 identical Swap Change panels

Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM54N-HC-425W

Q: Which panel is better: Astronergy CHSM66N(DG)/F-BH-730 or Astronergy CHSM54N-HC-425W?

According to our database: Astronergy CHSM66N(DG)/F-BH-730 has higher module efficiency (23.50% vs 21.80%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Astronergy CHSM66N(DG)/F-BH-730 and Astronergy CHSM54N-HC-425W?

Astronergy CHSM66N(DG)/F-BH-730 has a module efficiency of 23.50%, while Astronergy CHSM54N-HC-425W is 21.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Astronergy CHSM66N(DG)/F-BH-730 use vs Astronergy CHSM54N-HC-425W?

Astronergy CHSM66N(DG)/F-BH-730 uses TOPCon cells; Astronergy CHSM54N-HC-425W uses TOPCon. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.

Q: What is the warranty on Astronergy CHSM66N(DG)/F-BH-730 and Astronergy CHSM54N-HC-425W?

Astronergy CHSM66N(DG)/F-BH-730 has a 30 years power warranty; Astronergy CHSM54N-HC-425W 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.

Q: Are Astronergy CHSM66N(DG)/F-BH-730 and Astronergy CHSM54N-HC-425W bifacial panels?

Astronergy CHSM66N(DG)/F-BH-730 is bifacial (captures light from both faces); Astronergy CHSM54N-HC-425W is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

CHSM66N(DG)/F-BH-730

730 Wp 23.50 % TOPCon Bifacial

Open panel page Datasheet PDF

CHSM54N-HC-425W

425 Wp 21.80 % TOPCon

Open panel page Datasheet PDF

The verdict

CHSM66N(DG)/F-BH-730 leads on the differences that matter

The largest is module efficiency: 1.70 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

What actually differs

12 of 19 parameters

Parameter CHSM66N(DG)/F-BH-730 CHSM54N-HC-425W Difference

Module efficiency 23.50 % 21.80 % 1.70 pp more efficient

Rated power 730 Wp 425 Wp 305 W more power

Power density 235.0 Wp/m² 217.6 Wp/m² 17.4 Wp/m² higher

Weight 38.0 kg 21.3 kg 16.7 kg lighter

Open-circuit voltage 49.57 V 38.20 V 11.37 V apart

Short-circuit current 18.67 A 13.98 A 4.69 A apart

Module area 3.106 m² 1.953 m² 1.154 m² apart

Voltage at max power 41.24 V 32.10 V 9.14 V apart

Current at max power 17.70 A 13.24 A 4.46 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

What it means on a roof

Thirty years of production

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

Cell temperature

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-730

24,493 kWh

CHSM54N-HC-425W

14,260 kWh

Lifetime gap

10,233 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario CHSM66N(DG)/F-BH-730 CHSM54N-HC-425W

Standard test conditions 25 °C 100.0% of rated power 730 W 425 W

Cool, bright day 40 °C 95.7% of rated power 698 W 407 W

Typical summer roof 55 °C 91.3% of rated power 666 W 388 W

Hot roof 70 °C 87.0% of rated power 635 W 370 W

Full specification

Parameter CHSM66N(DG)/F-BH-730 CHSM54N-HC-425W Difference

Power and efficiency

Rated power 730 Wp 425 Wp +305 W for CHSM66N(DG)/F-BH-730

Module efficiency 23.50 % 21.80 % +1.70 pp for CHSM66N(DG)/F-BH-730

Power density 235.0 Wp/m² 217.6 Wp/m² +17.4 Wp/m² for CHSM66N(DG)/F-BH-730

Open-circuit voltage 49.57 V 38.20 V 11.37 V apart

Voltage at max power 41.24 V 32.10 V 9.14 V apart

Short-circuit current 18.67 A 13.98 A 4.69 A apart

Current at max power 17.70 A 13.24 A 4.46 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 CHSM54N-HC-425W

Weight per kWp 52.1 kg/kWp 50.1 kg/kWp Effectively the same

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

Against the whole database

14,005 panels

Efficiency

#716 vs #7,022

CHSM66N(DG)/F-BH-730 leads by 6,306 places

Power density

#800 vs #7,172

CHSM66N(DG)/F-BH-730 leads by 6,372 places

Heat behaviour

#2,165 vs #2,165

Tied - the same position in the database

Weight

#5,495 vs #3,619

CHSM54N-HC-425W leads by 1,876 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#199 vs #9,874

CHSM66N(DG)/F-BH-730 leads by 9,675 places

More useful comparisons

Open the full database

Same series, other bin

Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM66N(DG)/F-BH-735

One difference: module efficiency

Same series, other bin

Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM66N(DG)/F-BH-725

One difference: module efficiency

Same series, other bin

Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM66N(DG)/F-BH-720

3 differences, the largest is module efficiency

Same series, other bin

Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM66N(DG)/F-BH-715

3 differences, the largest is module efficiency

Same series, other bin

Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM66N(DG)/F-BH-710

3 differences, the largest is module efficiency

Same series, other bin

Astronergy CHSM54N-HC-425W vs Astronergy CHSM54N-HC-445W

4 differences, the largest is module efficiency

Written summary

Checking cache...

Questions about this pairing

Which panel is better: Astronergy CHSM66N(DG)/F-BH-730 or Astronergy CHSM54N-HC-425W?

According to our database: Astronergy CHSM66N(DG)/F-BH-730 has higher module efficiency (23.50% vs 21.80%). 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-730 and Astronergy CHSM54N-HC-425W?

Astronergy CHSM66N(DG)/F-BH-730 has a module efficiency of 23.50%, while Astronergy CHSM54N-HC-425 W is 21.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Astronergy CHSM66N(DG)/F-BH-730 use vs Astronergy CHSM54N-HC-425W?

Astronergy CHSM66N(DG)/F-BH-730 uses TOPCon cells; Astronergy CHSM54N-HC-425 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-730 and Astronergy CHSM54N-HC-425W?

Astronergy CHSM66N(DG)/F-BH-730 has a 30 years power warranty; Astronergy CHSM54N-HC-425 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-730 and Astronergy CHSM54N-HC-425W bifacial panels?

Astronergy CHSM66N(DG)/F-BH-730 is bifacial (captures light from both faces); Astronergy CHSM54N-HC-425 W is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

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.