E545HCBG144 vs E540HCBG144 18 of 19 identical Swap Change panels

Emmvee E545HCBG144 vs Emmvee E540HCBG144

Q: Which panel is better: Emmvee E545HCBG144 or Emmvee E540HCBG144?

According to our database: Emmvee E545HCBG144 has higher module efficiency (21.10% vs 20.90%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Emmvee E545HCBG144 and Emmvee E540HCBG144?

Emmvee E545HCBG144 has a module efficiency of 21.10%, while Emmvee E540HCBG144 is 20.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Emmvee E545HCBG144 use vs Emmvee E540HCBG144?

Emmvee E545HCBG144 uses PERC cells; Emmvee E540HCBG144 uses PERC. 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 Emmvee E545HCBG144 and Emmvee E540HCBG144?

Emmvee E545HCBG144 has a 30 years power warranty; Emmvee E540HCBG144 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 Emmvee E545HCBG144 and Emmvee E540HCBG144 bifacial panels?

Both Emmvee E545HCBG144 and Emmvee E540HCBG144 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.

Emmvee

E545HCBG144

545 Wp 21.10 % PERC Bifacial

Open panel page Datasheet PDF

Emmvee

E540HCBG144

540 Wp 20.90 % PERC Bifacial

Open panel page Datasheet PDF

The verdict

E545HCBG144 leads on the differences that matter

The largest is module efficiency: 0.20 pp more efficient. 18 of 19 comparable parameters are identical.

See the one difference

How alike are they

18 of 19 comparable
parameters are identical

identical differs

What actually differs

1 of 19 parameters

Parameter E545HCBG144 E540HCBG144 Difference

Module efficiency 21.10 % 20.90 % 0.20 pp more efficient

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 (-0.350 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.

E545HCBG144

17,947 kWh

E540HCBG144

17,783 kWh

Lifetime gap

164 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario E545HCBG144 E540HCBG144

Standard test conditions 25 °C 100.0% of rated power 545 W 540 W

Cool, bright day 40 °C 94.8% of rated power 516 W 512 W

Typical summer roof 55 °C 89.5% of rated power 488 W 483 W

Hot roof 70 °C 84.2% of rated power 459 W 455 W

Full specification

Parameter E545HCBG144 E540HCBG144 Difference

Power and efficiency

Rated power 545 Wp 540 Wp Effectively the same

Module efficiency 21.10 % 20.90 % +0.20 pp for E545HCBG144

Power density 211.0 Wp/m² 209.0 Wp/m² Effectively the same

Open-circuit voltage 49.75 V 49.50 V Effectively the same

Voltage at max power 41.61 V 41.54 V Effectively the same

Short-circuit current 13.88 A 13.62 A Effectively the same

Current at max power 13.10 A 13.00 A Effectively the same

Temperature

Temperature coefficient -0.350 %/°C -0.350 %/°C Same

Mechanical

Dimensions 2278x1134x35 mm 2278x1134x35 mm Same

Module area 2.583 m² 2.583 m² Same

Weight 30.0 kg 30.0 kg Same

Weight per kWp 55.0 kg/kWp 55.6 kg/kWp Effectively the same

Warranty and degradation

Product warranty 12 yrs 12 yrs Same

Performance warranty 30 yrs 30 yrs Same

Annual degradation 0.45 %/yr 0.45 %/yr Same

Technology

Cell technology PERC PERC Same

Cell type Monocrystalline Monocrystalline Same

Cell count 144 144 Same

Bifacial Yes Yes Same

Against the whole database

14,005 panels

Efficiency

#9,297 vs #10,072

E545HCBG144 leads by 775 places

Power density

#9,312 vs #10,100

E545HCBG144 leads by 788 places

Heat behaviour

#10,419 vs #10,419

Tied - the same position in the database

Weight

#9,429 vs #9,899

E545HCBG144 leads by 470 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#7,375 vs #7,849

E545HCBG144 leads by 474 places

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Written summary

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Questions about this pairing

Which panel is better: Emmvee E545HCBG144 or Emmvee E540HCBG144?

According to our database: Emmvee E545HCBG144 has higher module efficiency (21.10% vs 20.90%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Emmvee E545HCBG144 and Emmvee E540HCBG144?

Emmvee E545HCBG144 has a module efficiency of 21.10%, while Emmvee E540HCBG144 is 20.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Emmvee E545HCBG144 use vs Emmvee E540HCBG144?

Emmvee E545HCBG144 uses PERC cells; Emmvee E540HCBG144 uses PERC. 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 Emmvee E545HCBG144 and Emmvee E540HCBG144?

Emmvee E545HCBG144 has a 30 years power warranty; Emmvee E540HCBG144 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 Emmvee E545HCBG144 and Emmvee E540HCBG144 bifacial panels?

Both Emmvee E545HCBG144 and Emmvee E540HCBG144 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.

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.