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ES65HCBT144-T vs ES70HCBT144-T 18 of 19 identical Swap Change panels

Emmvee ES65HCBT144-T vs Emmvee ES70HCBT144-T

Emmvee
ES65HCBT144-T
565 Wp 21.87 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Emmvee
ES70HCBT144-T
570 Wp 22.07 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

ES70HCBT144-T 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
01

What actually differs

1 of 19 parameters
Parameter ES65HCBT144-T ES70HCBT144-T Difference
Module efficiency 21.87 % 22.07 % 0.20 pp more efficient
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.
ES65HCBT144-T
18,957 kWh
ES70HCBT144-T
19,125 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario ES65HCBT144-T ES70HCBT144-T
Standard test conditions 25 °C 100.0% of rated power 565 W 570 W
Cool, bright day 40 °C 95.7% of rated power 540 W 545 W
Typical summer roof 55 °C 91.3% of rated power 516 W 520 W
Hot roof 70 °C 87.0% of rated power 491 W 496 W
03

Full specification

Parameter ES65HCBT144-T ES70HCBT144-T Difference
Power and efficiency
Rated power 565 Wp 570 Wp Effectively the same
Module efficiency 21.87 % 22.07 % +0.20 pp for ES70HCBT144-T
Power density 218.7 Wp/m² 220.7 Wp/m² Effectively the same
Open-circuit voltage 50.87 V 51.07 V Effectively the same
Voltage at max power 42.14 V 42.29 V Effectively the same
Short-circuit current 14.19 A 14.25 A Effectively the same
Current at max power 13.41 A 13.48 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2278x1134x30 mm 2278x1134x30 mm Same
Module area 2.583 m² 2.583 m² Same
Weight 27.1 kg 27.1 kg Same
Weight per kWp 48.0 kg/kWp 47.5 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 144 144 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#6,908 vs #6,136
ES70HCBT144-T leads by 772 places
Power density
#6,841 vs #6,058
ES70HCBT144-T leads by 783 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#2,000 vs #1,750
ES70HCBT144-T leads by 250 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#5,570 vs #5,172
ES70HCBT144-T leads by 398 places
05

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06

Written summary

07

Questions about this pairing

Which panel is better: Emmvee ES65HCBT144-T or Emmvee ES70HCBT144-T?
According to our database: Emmvee ES70HCBT144-T has higher module efficiency (22.07% vs 21.87%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Emmvee ES65HCBT144-T and Emmvee ES70HCBT144-T?
Emmvee ES65HCBT144-T has a module efficiency of 21.87%, while Emmvee ES70HCBT144-T is 22.07%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Emmvee ES65HCBT144-T use vs Emmvee ES70HCBT144-T?
Emmvee ES65HCBT144-T uses TOPCon cells; Emmvee ES70HCBT144-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 ES65HCBT144-T and Emmvee ES70HCBT144-T?
Emmvee ES65HCBT144-T has a 30 years power warranty; Emmvee ES70HCBT144-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 ES65HCBT144-T and Emmvee ES70HCBT144-T bifacial panels?
Both Emmvee ES65HCBT144-T and Emmvee ES70HCBT144-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.