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E500HCBG132 vs E545HCBG144 11 of 19 identical Swap Change panels

Emmvee E500HCBG132 vs Emmvee E545HCBG144

Emmvee E500HCBG132
Emmvee
E500HCBG132
500 Wp 21.03 % PERC Bifacial
Open panel page Datasheet PDF
VS
Emmvee E545HCBG144
Emmvee
E545HCBG144
545 Wp 21.10 % PERC Bifacial
Open panel page Datasheet PDF
The verdict

E545HCBG144 leads on the differences that matter

The largest is rated power: 45 W more power. 11 of 19 comparable parameters are identical.

See all 8 differences
How alike are they
11 of 19 comparable
parameters are identical
identical differs
01

What actually differs

8 of 19 parameters
Parameter E500HCBG132 E545HCBG144 Difference
Rated power 500 Wp 545 Wp 45 W more power
Open-circuit voltage 44.92 V 49.75 V 4.83 V apart
Module area 2.378 m² 2.583 m² 0.205 m² apart
Weight 28.0 kg 30.0 kg 2.0 kg lighter
Cell count 132 144 12 cells apart
Short-circuit current 13.24 A 13.88 A 0.64 A apart
Voltage at max power 39.27 V 41.61 V 2.34 V apart
Dimensions 2097x1134x35 mm 2278x1134x35 mm 2097x1134x35 mm vs 2278x1134x35 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 (-0.350 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
E500HCBG132
16,466 kWh
E545HCBG144
17,947 kWh
Lifetime gap
1,481 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario E500HCBG132 E545HCBG144
Standard test conditions 25 °C 100.0% of rated power 500 W 545 W
Cool, bright day 40 °C 94.8% of rated power 474 W 516 W
Typical summer roof 55 °C 89.5% of rated power 448 W 488 W
Hot roof 70 °C 84.2% of rated power 421 W 459 W
03

Full specification

Parameter E500HCBG132 E545HCBG144 Difference
Power and efficiency
Rated power 500 Wp 545 Wp +45 W for E545HCBG144
Module efficiency 21.03 % 21.10 % Effectively the same
Power density 210.3 Wp/m² 211.0 Wp/m² Effectively the same
Open-circuit voltage 44.92 V 49.75 V 4.83 V apart
Voltage at max power 39.27 V 41.61 V 2.34 V apart
Short-circuit current 13.24 A 13.88 A 0.64 A apart
Current at max power 12.74 A 13.10 A Effectively the same
Temperature
Temperature coefficient -0.350 %/°C -0.350 %/°C Same
Mechanical
Dimensions 2097x1134x35 mm 2278x1134x35 mm 2097x1134x35 mm vs 2278x1134x35 mm
Module area 2.378 m² 2.583 m² 0.205 m² apart
Weight 28.0 kg 30.0 kg -2.0 kg for E500HCBG132
Weight per kWp 56.0 kg/kWp 55.0 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 132 144 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#9,671 vs #9,297
E545HCBG144 leads by 374 places
Power density
#9,664 vs #9,312
E545HCBG144 leads by 352 places
Heat behaviour
#10,419 vs #10,419
Tied - the same position in the database
Weight
#10,317 vs #9,429
E545HCBG144 leads by 888 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#9,106 vs #7,375
E545HCBG144 leads by 1,731 places
05

More useful comparisons

Open the full database
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06

Written summary

07

Questions about this pairing

Which panel is better: Emmvee E500HCBG132 or Emmvee E545HCBG144?
According to our database: Emmvee E545HCBG144 has higher module efficiency (21.10% vs 21.03%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Emmvee E500HCBG132 and Emmvee E545HCBG144?
Emmvee E500HCBG132 has a module efficiency of 21.03%, while Emmvee E545HCBG144 is 21.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Emmvee E500HCBG132 use vs Emmvee E545HCBG144?
Emmvee E500HCBG132 uses PERC cells; Emmvee E545HCBG144 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 E500HCBG132 and Emmvee E545HCBG144?
Emmvee E500HCBG132 has a 30 years power warranty; Emmvee E545HCBG144 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 E500HCBG132 and Emmvee E545HCBG144 bifacial panels?
Both Emmvee E500HCBG132 and Emmvee E545HCBG144 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.