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E580HCBT144-T vs E705HCBG 132-T 7 of 19 identical Swap Change panels

Emmvee E580HCBT144-T vs Emmvee E705HCBG 132-T

Emmvee
E580HCBT144-T
580 Wp 22.45 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Emmvee
E705HCBG 132-T
705 Wp 22.70 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

E705HCBG 132-T leads on the differences that matter

The largest is rated power: 125 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 E580HCBT144-T E705HCBG 132-T Difference
Rated power 580 Wp 705 Wp 125 W more power
Performance warranty 25 yrs 30 yrs 5 yrs longer
Weight 26.0 kg 37.8 kg 11.8 kg lighter
Weight per kWp 44.8 kg/kWp 53.6 kg/kWp 8.8 kg/kWp lighter
Short-circuit current 14.37 A 18.50 A 4.13 A apart
Module area 2.583 m² 3.106 m² 0.523 m² apart
Open-circuit voltage 51.47 V 48.18 V 3.29 V apart
Module efficiency 22.45 % 22.70 % 0.25 pp more efficient
Current at max power 13.62 A 17.62 A 4.00 A apart
Cell count 144 132 12 cells apart
Voltage at max power 42.59 V 40.04 V 2.55 V apart
Dimensions 2278x1134x35 mm 2384x1303x33 mm 2278x1134x35 mm vs 2384x1303x33 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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
E580HCBT144-T
19,460 kWh
E705HCBG 132-T
23,654 kWh
Lifetime gap
4,194 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario E580HCBT144-T E705HCBG 132-T
Standard test conditions 25 °C 100.0% of rated power 580 W 705 W
Cool, bright day 40 °C 95.7% of rated power 555 W 674 W
Typical summer roof 55 °C 91.3% of rated power 530 W 644 W
Hot roof 70 °C 87.0% of rated power 504 W 613 W
03

Full specification

Parameter E580HCBT144-T E705HCBG 132-T Difference
Power and efficiency
Rated power 580 Wp 705 Wp +125 W for E705HCBG 132-T
Module efficiency 22.45 % 22.70 % +0.25 pp for E705HCBG 132-T
Power density 224.5 Wp/m² 227.0 Wp/m² Effectively the same
Open-circuit voltage 51.47 V 48.18 V 3.29 V apart
Voltage at max power 42.59 V 40.04 V 2.55 V apart
Short-circuit current 14.37 A 18.50 A 4.13 A apart
Current at max power 13.62 A 17.62 A 4.00 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2278x1134x35 mm 2384x1303x33 mm 2278x1134x35 mm vs 2384x1303x33 mm
Module area 2.583 m² 3.106 m² 0.523 m² apart
Weight 26.0 kg 37.8 kg -11.8 kg for E580HCBT144-T
Weight per kWp 44.8 kg/kWp 53.6 kg/kWp -8.8 kg/kWp for E580HCBT144-T
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 25 yrs 30 yrs +5 yrs for E705HCBG 132-T
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 144 132 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#4,620 vs #3,307
E705HCBG 132-T leads by 1,313 places
Power density
#4,547 vs #3,361
E705HCBG 132-T leads by 1,186 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#542 vs #7,628
E580HCBT144-T leads by 7,086 places
Warranty
#9,798 vs #21
E705HCBG 132-T leads by 9,777 places
Overall
#5,393 vs #1,007
E705HCBG 132-T leads by 4,386 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 E580HCBT144-T or Emmvee E705HCBG 132-T?
According to our database: Emmvee E705HCBG 132-T has higher module efficiency (22.70% vs 22.45%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Emmvee E580HCBT144-T and Emmvee E705HCBG 132-T?
Emmvee E580HCBT144-T has a module efficiency of 22.45%, while Emmvee E705HCBG 132-T is 22.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Emmvee E580HCBT144-T use vs Emmvee E705HCBG 132-T?
Emmvee E580HCBT144-T uses TOPCon cells; Emmvee E705HCBG 132-T 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 Emmvee E580HCBT144-T and Emmvee E705HCBG 132-T?
Emmvee E580HCBT144-T has a 25 years power warranty; Emmvee E705HCBG 132-T 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 E580HCBT144-T and Emmvee E705HCBG 132-T bifacial panels?
Both Emmvee E580HCBT144-T and Emmvee E705HCBG 132-T 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.