Adani Solar ASB-M12-132-640 vs Adani Solar AB-G12R-132-640
VS
The verdict
AB-G12R-132-640 leads on the differences that matter
The largest is module efficiency: 3.16 pp more efficient. 8 of 19 comparable parameters are identical.
See all 11 differencesHow alike are they
8
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
11 of 19 parameters
What actually differs
Parameter
ASB-M12-132-640
AB-G12R-132-640
Difference
Module efficiency
20.55 %
23.71 %
3.16 pp more efficient
Temperature coefficient
-0.350 %/°C
-0.280 %/°C
0.070 %/°C better in heat
Power density
205.5 Wp/m²
237.1 Wp/m²
31.6 Wp/m² higher
Annual degradation
0.55 %/yr
0.40 %/yr
0.15 %/yr slower
Open-circuit voltage
43.28 V
49.06 V
5.78 V apart
Short-circuit current
18.69 A
16.09 A
2.60 A apart
Module area
3.114 m²
2.699 m²
0.415 m² apart
Cell technology
PERC
TOPCon
PERC vs TOPCon
Voltage at max power
37.01 V
42.00 V
4.99 V apart
Current at max power
17.31 A
15.26 A
2.05 A apart
Dimensions
2390x1303x35 mm
2382x1133x30 mm
2390x1303x35 mm vs 2382x1133x30 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
ASB-M12-132-640
20,742 kWh
AB-G12R-132-640
21,473 kWh
Lifetime gap
731 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
ASB-M12-132-640
AB-G12R-132-640
Standard test conditions
25 °C
100.0% of rated power
640 W
640 W
Cool, bright day
40 °C
94.8% of rated power
606 W
613 W
Typical summer roof
55 °C
89.5% of rated power
573 W
586 W
Hot roof
70 °C
84.2% of rated power
539 W
559 W
03
Full specification
Parameter
ASB-M12-132-640
AB-G12R-132-640
Difference
Power and efficiency
Rated power
640 Wp
640 Wp
Same
Module efficiency
20.55 %
23.71 %
+3.16 pp for AB-G12R-132-640
Power density
205.5 Wp/m²
237.1 Wp/m²
+31.6 Wp/m² for AB-G12R-132-640
Open-circuit voltage
43.28 V
49.06 V
5.78 V apart
Voltage at max power
37.01 V
42.00 V
4.99 V apart
Short-circuit current
18.69 A
16.09 A
2.60 A apart
Current at max power
17.31 A
15.26 A
2.05 A apart
Temperature
Temperature coefficient
-0.350 %/°C
-0.280 %/°C
+0.070 %/°C for AB-G12R-132-640
Mechanical
Dimensions
2390x1303x35 mm
2382x1133x30 mm
2390x1303x35 mm vs 2382x1133x30 mm
Module area
3.114 m²
2.699 m²
0.415 m² apart
Weight
33.6 kg
33.6 kg
Same
Weight per kWp
52.5 kg/kWp
52.5 kg/kWp
Same
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.55 %/yr
0.40 %/yr
-0.15 %/yr for AB-G12R-132-640
Technology
Cell technology
PERC
TOPCon
PERC vs TOPCon
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
132
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#11,208
vs
#516
AB-G12R-132-640 leads by 10,692 places
Power density
#11,191
vs
#516
AB-G12R-132-640 leads by 10,675 places
Heat behaviour
#10,419
vs
#1,309
AB-G12R-132-640 leads by 9,110 places
Weight
#6,043
vs
#6,043
Tied - the same position in the database
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#4,636
vs
#1,529
AB-G12R-132-640 leads by 3,107 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Adani Solar ASB-M12-132-640 or Adani Solar AB-G12R-132-640?
According to our database: Adani Solar AB-G12R-132-640 has higher module efficiency (23.71% vs 20.55%); Adani Solar AB-G12R-132-640 tolerates heat better (temp coeff -0.280%/°C vs -0.350%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Adani Solar ASB-M12-132-640 and Adani Solar AB-G12R-132-640?
Adani Solar ASB-M12-132-640 has a module efficiency of 20.55%, while Adani Solar AB-G12R-132-640 is 23.71%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Adani Solar ASB-M12-132-640 use vs Adani Solar AB-G12R-132-640?
Adani Solar ASB-M12-132-640 uses PERC cells; Adani Solar AB-G12R-132-640 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 Adani Solar ASB-M12-132-640 and Adani Solar AB-G12R-132-640?
Adani Solar ASB-M12-132-640 has a 30 years power warranty; Adani Solar AB-G12R-132-640 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 Adani Solar ASB-M12-132-640 and Adani Solar AB-G12R-132-640 bifacial panels?
Both Adani Solar ASB-M12-132-640 and Adani Solar AB-G12R-132-640 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 2 Adani Solar 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.