Emmvee E580HCBT144-T vs Emmvee E590HCBT144-T
VS
The verdict
E590HCBT144-T leads on the differences that matter
The largest is module efficiency: 0.39 pp more efficient. 16 of 19 comparable parameters are identical.
See all 3 differencesHow alike are they
16
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
3 of 19 parameters
What actually differs
Parameter
E580HCBT144-T
E590HCBT144-T
Difference
Module efficiency
22.45 %
22.84 %
0.39 pp more efficient
Power density
224.5 Wp/m²
228.4 Wp/m²
3.9 Wp/m² higher
Rated power
580 Wp
590 Wp
10 W more power
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
E590HCBT144-T
19,796 kWh
Lifetime gap
336 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
E580HCBT144-T
E590HCBT144-T
Standard test conditions
25 °C
100.0% of rated power
580 W
590 W
Cool, bright day
40 °C
95.7% of rated power
555 W
564 W
Typical summer roof
55 °C
91.3% of rated power
530 W
539 W
Hot roof
70 °C
87.0% of rated power
504 W
513 W
03
Full specification
Parameter
E580HCBT144-T
E590HCBT144-T
Difference
Power and efficiency
Rated power
580 Wp
590 Wp
+10 W for E590HCBT144-T
Module efficiency
22.45 %
22.84 %
+0.39 pp for E590HCBT144-T
Power density
224.5 Wp/m²
228.4 Wp/m²
+3.9 Wp/m² for E590HCBT144-T
Open-circuit voltage
51.47 V
51.87 V
Effectively the same
Voltage at max power
42.59 V
42.93 V
Effectively the same
Short-circuit current
14.37 A
14.49 A
Effectively the same
Current at max power
13.62 A
13.75 A
Effectively the same
Temperature
Temperature coefficient
-0.290 %/°C
-0.290 %/°C
Same
Mechanical
Dimensions
2278x1134x35 mm
2278x1134x35 mm
Same
Module area
2.583 m²
2.583 m²
Same
Weight
26.0 kg
26.0 kg
Same
Weight per kWp
44.8 kg/kWp
44.1 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
25 yrs
25 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
14,005 panels
Against the whole database
Efficiency
#4,620
vs
#2,617
E590HCBT144-T leads by 2,003 places
Power density
#4,547
vs
#2,598
E590HCBT144-T leads by 1,949 places
Heat behaviour
#2,165
vs
#2,165
Tied - the same position in the database
Weight
#542
vs
#374
E590HCBT144-T leads by 168 places
Warranty
#9,798
vs
#9,798
Tied - the same position in the database
Overall
#5,393
vs
#4,629
E590HCBT144-T leads by 764 places
05
Open the full database
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The same specification on paper
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Emmvee E580HCBT144-T or Emmvee E590HCBT144-T?
According to our database: Emmvee E590HCBT144-T has higher module efficiency (22.84% 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 E590HCBT144-T?
Emmvee E580HCBT144-T has a module efficiency of 22.45%, while Emmvee E590HCBT144-T is 22.84%. 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 E590HCBT144-T?
Emmvee E580HCBT144-T uses TOPCon cells; Emmvee E590HCBT144-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 E590HCBT144-T?
Emmvee E580HCBT144-T has a 25 years power warranty; Emmvee E590HCBT144-T 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.
Are Emmvee E580HCBT144-T and Emmvee E590HCBT144-T bifacial panels?
Both Emmvee E580HCBT144-T and Emmvee E590HCBT144-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.