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E635HCBG132-T vs E720HCBG132-T 11 of 19 identical Swap Change panels

Emmvee E635HCBG132-T vs Emmvee E720HCBG132-T

Emmvee
E635HCBG132-T
635 Wp 23.51 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Emmvee
E720HCBG132-T
720 Wp 23.18 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

E635HCBG132-T leads on the differences that matter

The largest is rated power: 85 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 E635HCBG132-T E720HCBG132-T Difference
Rated power 635 Wp 720 Wp 85 W more power
Weight 34.0 kg 37.8 kg 3.8 kg lighter
Module efficiency 23.51 % 23.18 % 0.33 pp more efficient
Short-circuit current 16.26 A 18.56 A 2.30 A apart
Module area 2.701 m² 3.106 m² 0.405 m² apart
Power density 235.1 Wp/m² 231.8 Wp/m² 3.3 Wp/m² higher
Current at max power 15.42 A 17.85 A 2.43 A apart
Dimensions 2382x1134x35 mm 2384x1303x33 mm 2382x1134x35 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.
E635HCBG132-T
21,306 kWh
E720HCBG132-T
24,157 kWh
Lifetime gap
2,851 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario E635HCBG132-T E720HCBG132-T
Standard test conditions 25 °C 100.0% of rated power 635 W 720 W
Cool, bright day 40 °C 95.7% of rated power 607 W 689 W
Typical summer roof 55 °C 91.3% of rated power 580 W 657 W
Hot roof 70 °C 87.0% of rated power 552 W 626 W
03

Full specification

Parameter E635HCBG132-T E720HCBG132-T Difference
Power and efficiency
Rated power 635 Wp 720 Wp +85 W for E720HCBG132-T
Module efficiency 23.51 % 23.18 % +0.33 pp for E635HCBG132-T
Power density 235.1 Wp/m² 231.8 Wp/m² +3.3 Wp/m² for E635HCBG132-T
Open-circuit voltage 49.56 V 48.60 V Effectively the same
Voltage at max power 41.18 V 40.36 V Effectively the same
Short-circuit current 16.26 A 18.56 A 2.30 A apart
Current at max power 15.42 A 17.85 A 2.43 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2382x1134x35 mm 2384x1303x33 mm 2382x1134x35 mm vs 2384x1303x33 mm
Module area 2.701 m² 3.106 m² 0.405 m² apart
Weight 34.0 kg 37.8 kg -3.8 kg for E635HCBG132-T
Weight per kWp 53.5 kg/kWp 52.5 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 132 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#696 vs #1,424
E635HCBG132-T leads by 728 places
Power density
#741 vs #1,347
E635HCBG132-T leads by 606 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#7,535 vs #6,043
E720HCBG132-T leads by 1,492 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#1,761 vs #540
E720HCBG132-T leads by 1,221 places
05

More useful comparisons

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06

Written summary

07

Questions about this pairing

Which panel is better: Emmvee E635HCBG132-T or Emmvee E720HCBG132-T?
According to our database: Emmvee E635HCBG132-T has higher module efficiency (23.51% vs 23.18%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Emmvee E635HCBG132-T and Emmvee E720HCBG132-T?
Emmvee E635HCBG132-T has a module efficiency of 23.51%, while Emmvee E720HCBG132-T is 23.18%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Emmvee E635HCBG132-T use vs Emmvee E720HCBG132-T?
Emmvee E635HCBG132-T uses TOPCon cells; Emmvee E720HCBG132-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 E635HCBG132-T and Emmvee E720HCBG132-T?
Emmvee E635HCBG132-T has a 30 years power warranty; Emmvee E720HCBG132-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 E635HCBG132-T and Emmvee E720HCBG132-T bifacial panels?
Both Emmvee E635HCBG132-T and Emmvee E720HCBG132-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.