CHSM78N(DG)/F-BH-650W vs CHSM54RNs(DG)(BLH)/F-BH-450W 8 of 19 identical Swap Change panels

Astronergy CHSM78N(DG)/F-BH-650W vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W

Q: Which panel is better: Astronergy CHSM78N(DG)/F-BH-650W or Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W?

According to our database: Astronergy CHSM78N(DG)/F-BH-650W has higher module efficiency (23.30% vs 22.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Astronergy CHSM78N(DG)/F-BH-650W and Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W?

Astronergy CHSM78N(DG)/F-BH-650W has a module efficiency of 23.30%, while Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W is 22.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Astronergy CHSM78N(DG)/F-BH-650W use vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W?

Astronergy CHSM78N(DG)/F-BH-650W uses TOPCon cells; Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W 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 CHSM78N(DG)/F-BH-650W and Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W?

Astronergy CHSM78N(DG)/F-BH-650W has a 30 years power warranty; Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W 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 CHSM78N(DG)/F-BH-650W and Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W bifacial panels?

Both Astronergy CHSM78N(DG)/F-BH-650W and Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W 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.

CHSM78N(DG)/F-BH-650W

650 Wp 23.30 % TOPCon Bifacial

Open panel page Datasheet PDF

CHSM54RNs(DG)(BLH)/F-BH-450W

450 Wp 22.50 % TOPCon Bifacial

Open panel page Datasheet PDF

The verdict

11 differences, and they point both ways

The largest is module efficiency: 0.80 pp more efficient. 8 of 19 comparable parameters are identical.

See all 11 differences

How alike are they

8 of 19 comparable
parameters are identical

identical differs

What actually differs

11 of 19 parameters

Parameter CHSM78N(DG)/F-BH-650W CHSM54RNs(DG)(BLH)/F-BH-450W Difference

Module efficiency 23.30 % 22.50 % 0.80 pp more efficient

Rated power 650 Wp 450 Wp 200 W more power

Weight 34.7 kg 21.5 kg 13.2 kg lighter

Product warranty 15 yrs 25 yrs 10 yrs longer

Power density 232.5 Wp/m² 225.2 Wp/m² 7.3 Wp/m² higher

Weight per kWp 53.4 kg/kWp 47.8 kg/kWp 5.6 kg/kWp lighter

Open-circuit voltage 57.01 V 39.40 V 17.61 V apart

Module area 2.795 m² 1.998 m² 0.797 m² apart

Voltage at max power 47.12 V 33.39 V 13.73 V apart

Cell count 156 108 48 cells apart

Dimensions 2465x1134x30 mm 1762x1134x30 mm 2465x1134x30 mm vs 1762x1134x30 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.

CHSM78N(DG)/F-BH-650W

21,809 kWh

CHSM54RNs(DG)(BLH)/F-BH-450W

15,098 kWh

Lifetime gap

6,711 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario CHSM78N(DG)/F-BH-650W CHSM54RNs(DG)(BLH)/F-BH-450W

Standard test conditions 25 °C 100.0% of rated power 650 W 450 W

Cool, bright day 40 °C 95.7% of rated power 622 W 430 W

Typical summer roof 55 °C 91.3% of rated power 593 W 411 W

Hot roof 70 °C 87.0% of rated power 565 W 391 W

Full specification

Parameter CHSM78N(DG)/F-BH-650W CHSM54RNs(DG)(BLH)/F-BH-450W Difference

Power and efficiency

Rated power 650 Wp 450 Wp +200 W for CHSM78N(DG)/F-BH-650W

Module efficiency 23.30 % 22.50 % +0.80 pp for CHSM78N(DG)/F-BH-650W

Power density 232.5 Wp/m² 225.2 Wp/m² +7.3 Wp/m² for CHSM78N(DG)/F-BH-650W

Open-circuit voltage 57.01 V 39.40 V 17.61 V apart

Voltage at max power 47.12 V 33.39 V 13.73 V apart

Short-circuit current 14.51 A 14.28 A Effectively the same

Current at max power 13.80 A 13.48 A Effectively the same

Temperature

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

Mechanical

Dimensions 2465x1134x30 mm 1762x1134x30 mm 2465x1134x30 mm vs 1762x1134x30 mm

Module area 2.795 m² 1.998 m² 0.797 m² apart

Weight 34.7 kg 21.5 kg -13.2 kg for CHSM54RNs(DG)(BLH)/F-BH-450W

Weight per kWp 53.4 kg/kWp 47.8 kg/kWp -5.6 kg/kWp for CHSM54RNs(DG)(BLH)/F-BH-450W

Warranty and degradation

Product warranty 15 yrs 25 yrs +10 yrs for CHSM54RNs(DG)(BLH)/F-BH-450W

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 156 108 48 cells apart

Bifacial Yes Yes Same

Against the whole database

14,005 panels

Efficiency

#1,017 vs #4,222

CHSM78N(DG)/F-BH-650W leads by 3,205 places

Power density

#1,222 vs #4,225

CHSM78N(DG)/F-BH-650W leads by 3,003 places

Heat behaviour

#2,165 vs #2,165

Tied - the same position in the database

Weight

#7,283 vs #1,891

CHSM54RNs(DG)(BLH)/F-BH-450W leads by 5,392 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#1,318 vs #6,062

CHSM78N(DG)/F-BH-650W leads by 4,744 places

More useful comparisons

Open the full database

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

One difference: voltage at max power

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Astronergy CHSM78N(DG)/F-BH-650W vs Astronergy CHSM78N(DG)/F-BH 645W

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Astronergy CHSM78N(DG)/F-BH-650W vs Astronergy CHSM78N(DG)/F-BH-645W

One difference: module efficiency

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Astronergy CHSM78N(DG)/F-BH-650W vs Astronergy CHSM78N(DG)/F-BH 640W

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Astronergy CHSM78N(DG)/F-BH-650W vs Astronergy CHSM78N(DG)/F-BH-640W

3 differences, the largest is module efficiency

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Astronergy CHSM78N(DG)/F-BH-650W vs Astronergy CHSM78N(DG)/F-BH 635W

3 differences, the largest is module efficiency

Written summary

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Questions about this pairing

Which panel is better: Astronergy CHSM78N(DG)/F-BH-650W or Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W?

According to our database: Astronergy CHSM78N(DG)/F-BH-650 W has higher module efficiency (23.30% vs 22.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Astronergy CHSM78N(DG)/F-BH-650W and Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W?

Astronergy CHSM78N(DG)/F-BH-650 W has a module efficiency of 23.30%, while Astronergy CHSM54RNs(DG)(BLH)/F-BH-450 W is 22.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Astronergy CHSM78N(DG)/F-BH-650W use vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W?

Astronergy CHSM78N(DG)/F-BH-650 W uses TOPCon cells; Astronergy CHSM54RNs(DG)(BLH)/F-BH-450 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 CHSM78N(DG)/F-BH-650W and Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W?

Astronergy CHSM78N(DG)/F-BH-650 W has a 30 years power warranty; Astronergy CHSM54RNs(DG)(BLH)/F-BH-450 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 CHSM78N(DG)/F-BH-650W and Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W bifacial panels?

Both Astronergy CHSM78N(DG)/F-BH-650 W and Astronergy CHSM54RNs(DG)(BLH)/F-BH-450 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.