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ASB-M12-132-635 vs AB-G12R-132-640 8 of 19 identical Swap Change panels

Adani Solar ASB-M12-132-635 vs Adani Solar AB-G12R-132-640

Adani Solar
ASB-M12-132-635
635 Wp 20.39 % PERC Bifacial
VS
Adani Solar
AB-G12R-132-640
640 Wp 23.71 % TOPCon Bifacial
The verdict

AB-G12R-132-640 leads on the differences that matter

The largest is module efficiency: 3.32 pp more efficient. 8 of 19 comparable parameters are identical.

See all 11 differences
How alike are they
8 of 19 comparable
parameters are identical
identical differs
01

What actually differs

11 of 19 parameters
Parameter ASB-M12-132-635 AB-G12R-132-640 Difference
Module efficiency 20.39 % 23.71 % 3.32 pp more efficient
Temperature coefficient -0.350 %/°C -0.280 %/°C 0.070 %/°C better in heat
Power density 203.9 Wp/m² 237.1 Wp/m² 33.2 Wp/m² higher
Annual degradation 0.55 %/yr 0.40 %/yr 0.15 %/yr slower
Open-circuit voltage 43.08 V 49.06 V 5.98 V apart
Short-circuit current 18.63 A 16.09 A 2.54 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 36.82 V 42.00 V 5.18 V apart
Current at max power 17.25 A 15.26 A 1.99 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-M12-132-635
20,580 kWh
AB-G12R-132-640
21,473 kWh
Lifetime gap
893 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario ASB-M12-132-635 AB-G12R-132-640
Standard test conditions 25 °C 100.0% of rated power 635 W 640 W
Cool, bright day 40 °C 94.8% of rated power 602 W 613 W
Typical summer roof 55 °C 89.5% of rated power 568 W 586 W
Hot roof 70 °C 84.2% of rated power 535 W 559 W
03

Full specification

Parameter ASB-M12-132-635 AB-G12R-132-640 Difference
Power and efficiency
Rated power 635 Wp 640 Wp Effectively the same
Module efficiency 20.39 % 23.71 % +3.32 pp for AB-G12R-132-640
Power density 203.9 Wp/m² 237.1 Wp/m² +33.2 Wp/m² for AB-G12R-132-640
Open-circuit voltage 43.08 V 49.06 V 5.98 V apart
Voltage at max power 36.82 V 42.00 V 5.18 V apart
Short-circuit current 18.63 A 16.09 A 2.54 A apart
Current at max power 17.25 A 15.26 A 1.99 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 52.9 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 0.55 %/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

Against the whole database

14,005 panels
Efficiency
#11,683 vs #516
AB-G12R-132-640 leads by 11,167 places
Power density
#11,623 vs #516
AB-G12R-132-640 leads by 11,107 places
Heat behaviour
#10,419 vs #1,309
AB-G12R-132-640 leads by 9,110 places
Weight
#6,627 vs #6,043
AB-G12R-132-640 leads by 584 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#4,963 vs #1,529
AB-G12R-132-640 leads by 3,434 places
05

More useful comparisons

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06

Written summary

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07

Questions about this pairing

Which panel is better: Adani Solar ASB-M12-132-635 or Adani Solar AB-G12R-132-640?
According to our database: Adani Solar AB-G12R-132-640 has higher module efficiency (23.71% vs 20.39%); 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-M12-132-635 and Adani Solar AB-G12R-132-640?
Adani Solar ASB-M12-132-635 has a module efficiency of 20.39%, 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-M12-132-635 use vs Adani Solar AB-G12R-132-640?
Adani Solar ASB-M12-132-635 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-M12-132-635 and Adani Solar AB-G12R-132-640?
Adani Solar ASB-M12-132-635 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-M12-132-635 and Adani Solar AB-G12R-132-640 bifacial panels?
Both Adani Solar ASB-M12-132-635 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.

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.