AE Solar CME-132BDS-725 vs Gokin GK-4-78HGBD-780M
VS
The verdict
GK-4-78HGBD-780M leads on the differences that matter
The largest is module efficiency: 0.93 pp more efficient. 4 of 19 comparable parameters are identical.
See all 15 differencesHow alike are they
4
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
15 of 19 parameters
What actually differs
Parameter
CME-132BDS-725
GK-4-78HGBD-780M
Difference
Module efficiency
23.37 %
24.30 %
0.93 pp more efficient
Rated power
725 Wp
780 Wp
55 W more power
Temperature coefficient
-0.290 %/°C
-0.260 %/°C
0.030 %/°C better in heat
Power density
233.7 Wp/m²
242.8 Wp/m²
9.2 Wp/m² higher
Product warranty
30 yrs
15 yrs
15 yrs longer
Open-circuit voltage
49.30 V
58.92 V
9.62 V apart
Module area
3.103 m²
3.212 m²
0.109 m² apart
Short-circuit current
18.46 A
16.78 A
1.68 A apart
Weight
37.0 kg
38.7 kg
1.7 kg lighter
Cell technology
TOPCon
Back Contact
TOPCon vs Back Contact
Annual degradation
0.40 %/yr
0.35 %/yr
0.05 %/yr slower
Voltage at max power
41.50 V
48.97 V
7.47 V apart
Cell count
132
156
24 cells apart
Current at max power
17.47 A
15.93 A
1.54 A apart
Dimensions
2383x1302x30 mm
2465x1303x33 mm
2383x1302x30 mm vs 2465x1303x33 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
CME-132BDS-725
24,325 kWh
GK-4-78HGBD-780M
26,374 kWh
Lifetime gap
2,049 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
CME-132BDS-725
GK-4-78HGBD-780M
Standard test conditions
25 °C
100.0% of rated power
725 W
780 W
Cool, bright day
40 °C
95.7% of rated power
693 W
750 W
Typical summer roof
55 °C
91.3% of rated power
662 W
719 W
Hot roof
70 °C
87.0% of rated power
630 W
689 W
03
Full specification
Parameter
CME-132BDS-725
GK-4-78HGBD-780M
Difference
Power and efficiency
Rated power
725 Wp
780 Wp
+55 W for GK-4-78HGBD-780M
Module efficiency
23.37 %
24.30 %
+0.93 pp for GK-4-78HGBD-780M
Power density
233.7 Wp/m²
242.8 Wp/m²
+9.2 Wp/m² for GK-4-78HGBD-780M
Open-circuit voltage
49.30 V
58.92 V
9.62 V apart
Voltage at max power
41.50 V
48.97 V
7.47 V apart
Short-circuit current
18.46 A
16.78 A
1.68 A apart
Current at max power
17.47 A
15.93 A
1.54 A apart
Temperature
Temperature coefficient
-0.290 %/°C
-0.260 %/°C
+0.030 %/°C for GK-4-78HGBD-780M
Mechanical
Dimensions
2383x1302x30 mm
2465x1303x33 mm
2383x1302x30 mm vs 2465x1303x33 mm
Module area
3.103 m²
3.212 m²
0.109 m² apart
Weight
37.0 kg
38.7 kg
-1.7 kg for CME-132BDS-725
Weight per kWp
51.0 kg/kWp
49.6 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
30 yrs
15 yrs
+15 yrs for CME-132BDS-725
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.40 %/yr
0.35 %/yr
-0.05 %/yr for GK-4-78HGBD-780M
Technology
Cell technology
TOPCon
Back Contact
TOPCon vs Back Contact
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
156
24 cells apart
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#930
vs
#131
GK-4-78HGBD-780M leads by 799 places
Power density
#923
vs
#138
GK-4-78HGBD-780M leads by 785 places
Heat behaviour
#2,165
vs
#511
GK-4-78HGBD-780M leads by 1,654 places
Weight
#4,382
vs
#3,161
GK-4-78HGBD-780M leads by 1,221 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#11
vs
#15
CME-132BDS-725 leads by 4 places
05
Open the full database
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AE Solar CME-132BDS-725 vs AE Solar CME-132BDS-725W
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The same specification on paper
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AE Solar CME-132BDS-725 vs AE Solar CME-132BDS-720W
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AE Solar CME-132BDS-725 vs AE Solar CME-132BDS-715
3 differences, the largest is module efficiency
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: AE Solar CME-132BDS-725 or Gokin GK-4-78HGBD-780M?
According to our database: Gokin GK-4-78HGBD-780M has higher module efficiency (24.30% vs 23.37%); Gokin GK-4-78HGBD-780M tolerates heat better (temp coeff -0.260%/°C vs -0.290%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AE Solar CME-132BDS-725 and Gokin GK-4-78HGBD-780M?
AE Solar CME-132BDS-725 has a module efficiency of 23.37%, while Gokin GK-4-78HGBD-780M is 24.30%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AE Solar CME-132BDS-725 use vs Gokin GK-4-78HGBD-780M?
AE Solar CME-132BDS-725 uses TOPCon cells; Gokin GK-4-78HGBD-780M uses Back Contact. 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 AE Solar CME-132BDS-725 and Gokin GK-4-78HGBD-780M?
AE Solar CME-132BDS-725 has a 30 years power warranty; Gokin GK-4-78HGBD-780M 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 AE Solar CME-132BDS-725 and Gokin GK-4-78HGBD-780M bifacial panels?
Both AE Solar CME-132BDS-725 and Gokin GK-4-78HGBD-780M 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.
Shop prices: See 4 AE Solar offers · See 7 Gokin offers
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.