CHSM72N(DG)/F-BH 600 vs CHSM78N(DG)/F-BH 645W 12 of 19 identical Swap Change panels

Astronergy CHSM72N(DG)/F-BH 600 vs Astronergy CHSM78N(DG)/F-BH 645W

Q: Which panel is better: Astronergy CHSM72N(DG)/F-BH 600 or Astronergy CHSM78N(DG)/F-BH 645W?

According to our database: Astronergy CHSM72N(DG)/F-BH 600 has higher module efficiency (23.20% vs 23.10%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Astronergy CHSM72N(DG)/F-BH 600 and Astronergy CHSM78N(DG)/F-BH 645W?

Astronergy CHSM72N(DG)/F-BH 600 has a module efficiency of 23.20%, while Astronergy CHSM78N(DG)/F-BH 645W is 23.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Astronergy CHSM72N(DG)/F-BH 600 use vs Astronergy CHSM78N(DG)/F-BH 645W?

Astronergy CHSM72N(DG)/F-BH 600 uses TOPCon cells; Astronergy CHSM78N(DG)/F-BH 645W 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 CHSM72N(DG)/F-BH 600 and Astronergy CHSM78N(DG)/F-BH 645W?

Astronergy CHSM72N(DG)/F-BH 600 has a 30 years power warranty; Astronergy CHSM78N(DG)/F-BH 645W 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 CHSM72N(DG)/F-BH 600 and Astronergy CHSM78N(DG)/F-BH 645W bifacial panels?

Both Astronergy CHSM72N(DG)/F-BH 600 and Astronergy CHSM78N(DG)/F-BH 645W 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.

CHSM72N(DG)/F-BH 600

600 Wp 23.20 % TOPCon Bifacial

Open panel page Datasheet PDF

CHSM78N(DG)/F-BH 645W

645 Wp 23.10 % TOPCon Bifacial

Open panel page Datasheet PDF

The verdict

CHSM78N(DG)/F-BH 645W leads on the differences that matter

The largest is rated power: 45 W more power. 12 of 19 comparable parameters are identical.

See all 7 differences

How alike are they

12 of 19 comparable
parameters are identical

identical differs

What actually differs

7 of 19 parameters

Parameter CHSM72N(DG)/F-BH 600 CHSM78N(DG)/F-BH 645W Difference

Rated power 600 Wp 645 Wp 45 W more power

Open-circuit voltage 52.10 V 57.08 V 4.98 V apart

Module area 2.583 m² 2.795 m² 0.212 m² apart

Weight 32.1 kg 34.7 kg 2.6 kg lighter

Voltage at max power 43.78 V 48.03 V 4.25 V apart

Cell count 144 156 12 cells apart

Dimensions 2278x1134x30 mm 2465x1134x30 mm 2278x1134x30 mm vs 2465x1134x30 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.

CHSM72N(DG)/F-BH 600

20,131 kWh

CHSM78N(DG)/F-BH 645W

21,641 kWh

Lifetime gap

1,510 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario CHSM72N(DG)/F-BH 600 CHSM78N(DG)/F-BH 645W

Standard test conditions 25 °C 100.0% of rated power 600 W 645 W

Cool, bright day 40 °C 95.7% of rated power 574 W 617 W

Typical summer roof 55 °C 91.3% of rated power 548 W 589 W

Hot roof 70 °C 87.0% of rated power 522 W 561 W

Full specification

Parameter CHSM72N(DG)/F-BH 600 CHSM78N(DG)/F-BH 645W Difference

Power and efficiency

Rated power 600 Wp 645 Wp +45 W for CHSM78N(DG)/F-BH 645W

Module efficiency 23.20 % 23.10 % Effectively the same

Power density 232.3 Wp/m² 230.7 Wp/m² Effectively the same

Open-circuit voltage 52.10 V 57.08 V 4.98 V apart

Voltage at max power 43.78 V 48.03 V 4.25 V apart

Short-circuit current 14.61 A 14.20 A Effectively the same

Current at max power 13.70 A 13.43 A Effectively the same

Temperature

Temperature coefficient -0.290 %/°C -0.290 %/°C Same

Mechanical

Dimensions 2278x1134x30 mm 2465x1134x30 mm 2278x1134x30 mm vs 2465x1134x30 mm

Module area 2.583 m² 2.795 m² 0.212 m² apart

Weight 32.1 kg 34.7 kg -2.6 kg for CHSM72N(DG)/F-BH 600

Weight per kWp 53.5 kg/kWp 53.8 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 144 156 12 cells apart

Bifacial Yes Yes Same

Against the whole database

14,005 panels

Efficiency

#1,306 vs #1,570

CHSM72N(DG)/F-BH 600 leads by 264 places

Power density

#1,252 vs #1,654

CHSM72N(DG)/F-BH 600 leads by 402 places

Heat behaviour

#2,165 vs #2,165

Tied - the same position in the database

Weight

#7,477 vs #7,876

CHSM72N(DG)/F-BH 600 leads by 399 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#2,413 vs #1,496

CHSM78N(DG)/F-BH 645W leads by 917 places

More useful comparisons

Open the full database

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Astronergy CHSM72N(DG)/F-BH 600 vs Astronergy CHSM78N(DG)/F-BH 650W

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Astronergy CHSM72N(DG)/F-BH 600 vs Astronergy CHSM78N(DG)/F-BH-650W

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Astronergy CHSM72N(DG)/F-BH 600 vs Astronergy CHSM78N(DG)/F-BH-645

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Astronergy CHSM72N(DG)/F-BH 600 vs Astronergy CHSM78N(DG)/F-BH-645W

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Same series, other bin

Astronergy CHSM72N(DG)/F-BH 600 vs Astronergy CHSM78N(DG)/F-BH-640

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Written summary

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Questions about this pairing

Which panel is better: Astronergy CHSM72N(DG)/F-BH 600 or Astronergy CHSM78N(DG)/F-BH 645W?

According to our database: Astronergy CHSM72N(DG)/F-BH 600 has higher module efficiency (23.20% vs 23.10%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Astronergy CHSM72N(DG)/F-BH 600 and Astronergy CHSM78N(DG)/F-BH 645W?

Astronergy CHSM72N(DG)/F-BH 600 has a module efficiency of 23.20%, while Astronergy CHSM78N(DG)/F-BH 645 W is 23.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Astronergy CHSM72N(DG)/F-BH 600 use vs Astronergy CHSM78N(DG)/F-BH 645W?

Astronergy CHSM72N(DG)/F-BH 600 uses TOPCon cells; Astronergy CHSM78N(DG)/F-BH 645 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 CHSM72N(DG)/F-BH 600 and Astronergy CHSM78N(DG)/F-BH 645W?

Astronergy CHSM72N(DG)/F-BH 600 has a 30 years power warranty; Astronergy CHSM78N(DG)/F-BH 645 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 CHSM72N(DG)/F-BH 600 and Astronergy CHSM78N(DG)/F-BH 645W bifacial panels?

Both Astronergy CHSM72N(DG)/F-BH 600 and Astronergy CHSM78N(DG)/F-BH 645 W 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.