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E485HCM132-B vs E540HCM144-B 7 of 19 identical Swap Change panels

Emmvee E485HCM132-B vs Emmvee E540HCM144-B

Emmvee
E485HCM132-B
485 Wp 20.40 % PERC
Open panel page Datasheet PDF
VS
Emmvee
E540HCM144-B
540 Wp 20.90 % PERC
Open panel page Datasheet PDF
The verdict

E540HCM144-B leads on the differences that matter

The largest is rated power: 55 W more power. 7 of 19 comparable parameters are identical.

See all 12 differences
How alike are they
7 of 19 comparable
parameters are identical
identical differs
01

What actually differs

12 of 19 parameters
Parameter E485HCM132-B E540HCM144-B Difference
Rated power 485 Wp 540 Wp 55 W more power
Module efficiency 20.40 % 20.90 % 0.50 pp more efficient
Open-circuit voltage 44.43 V 49.50 V 5.07 V apart
Module area 2.378 m² 2.583 m² 0.205 m² apart
Power density 204.0 Wp/m² 209.0 Wp/m² 5.1 Wp/m² higher
Weight per kWp 51.5 kg/kWp 48.1 kg/kWp 3.4 kg/kWp lighter
Cell count 132 144 12 cells apart
Weight 25.0 kg 26.0 kg 1.0 kg lighter
Voltage at max power 38.81 V 41.54 V 2.73 V apart
Short-circuit current 13.00 A 13.62 A 0.62 A apart
Dimensions 2097x1134x35 mm 2278x1134x35 mm 2097x1134x35 mm vs 2278x1134x35 mm
Current at max power 12.50 A 13.00 A 0.50 A apart
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.
E485HCM132-B
15,718 kWh
E540HCM144-B
17,501 kWh
Lifetime gap
1,783 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario E485HCM132-B E540HCM144-B
Standard test conditions 25 °C 100.0% of rated power 485 W 540 W
Cool, bright day 40 °C 94.8% of rated power 460 W 512 W
Typical summer roof 55 °C 89.5% of rated power 434 W 483 W
Hot roof 70 °C 84.2% of rated power 409 W 455 W
03

Full specification

Parameter E485HCM132-B E540HCM144-B Difference
Power and efficiency
Rated power 485 Wp 540 Wp +55 W for E540HCM144-B
Module efficiency 20.40 % 20.90 % +0.50 pp for E540HCM144-B
Power density 204.0 Wp/m² 209.0 Wp/m² +5.1 Wp/m² for E540HCM144-B
Open-circuit voltage 44.43 V 49.50 V 5.07 V apart
Voltage at max power 38.81 V 41.54 V 2.73 V apart
Short-circuit current 13.00 A 13.62 A 0.62 A apart
Current at max power 12.50 A 13.00 A 0.50 A apart
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 25.0 kg 26.0 kg -1.0 kg for E485HCM132-B
Weight per kWp 51.5 kg/kWp 48.1 kg/kWp -3.4 kg/kWp for E540HCM144-B
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 25 yrs 25 yrs Same
Annual degradation 0.55 %/yr 0.55 %/yr Same
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 144 12 cells apart
Bifacial No No Same
04

Against the whole database

14,129 panels
Efficiency
#11,680 vs #10,148
E540HCM144-B leads by 1,532 places
Power density
#11,691 vs #10,176
E540HCM144-B leads by 1,515 places
Heat behaviour
#10,489 vs #10,489
Tied - the same position in the database
Weight
#4,959 vs #2,076
E540HCM144-B leads by 2,883 places
Warranty
#9,912 vs #9,912
Tied - the same position in the database
Overall
#10,728 vs #8,899
E540HCM144-B leads by 1,829 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 E485HCM132-B or Emmvee E540HCM144-B?
According to our database: Emmvee E540HCM144-B has higher module efficiency (20.90% vs 20.40%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Emmvee E485HCM132-B and Emmvee E540HCM144-B?
Emmvee E485HCM132-B has a module efficiency of 20.40%, while Emmvee E540HCM144-B is 20.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Emmvee E485HCM132-B use vs Emmvee E540HCM144-B?
Emmvee E485HCM132-B uses PERC cells; Emmvee E540HCM144-B 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 E485HCM132-B and Emmvee E540HCM144-B?
Emmvee E485HCM132-B has a 25 years power warranty; Emmvee E540HCM144-B has a 25 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.

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.