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605 vs 640 14 of 19 identical Swap Change panels

Adani Solar AB-G12R-132-605 vs Adani Solar AB-G12R-132-640

Adani Solar
AB-G12R-132-605
605 Wp 22.42 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Adani Solar
AB-G12R-132-640
640 Wp 23.71 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

640 leads on the differences that matter

The largest is module efficiency: 1.29 pp more efficient. 14 of 19 comparable parameters are identical.

See all 5 differences
How alike are they
14 of 19 comparable
parameters are identical
identical differs
01

What actually differs

5 of 19 parameters
Parameter 605 640 Difference
Module efficiency 22.42 % 23.71 % 1.29 pp more efficient
Power density 224.2 Wp/m² 237.1 Wp/m² 13.0 Wp/m² higher
Rated power 605 Wp 640 Wp 35 W more power
Weight per kWp 55.5 kg/kWp 52.5 kg/kWp 3.0 kg/kWp lighter
Voltage at max power 40.72 V 42.00 V 1.28 V apart
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 (-0.280 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
605
20,299 kWh
640
21,473 kWh
Lifetime gap
1,174 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 605 640
Standard test conditions 25 °C 100.0% of rated power 605 W 640 W
Cool, bright day 40 °C 95.8% of rated power 580 W 613 W
Typical summer roof 55 °C 91.6% of rated power 554 W 586 W
Hot roof 70 °C 87.4% of rated power 529 W 559 W
03

Full specification

Parameter 605 640 Difference
Power and efficiency
Rated power 605 Wp 640 Wp +35 W for 640
Module efficiency 22.42 % 23.71 % +1.29 pp for 640
Power density 224.2 Wp/m² 237.1 Wp/m² +13.0 Wp/m² for 640
Open-circuit voltage 48.14 V 49.06 V Effectively the same
Voltage at max power 40.72 V 42.00 V 1.28 V apart
Short-circuit current 15.87 A 16.09 A Effectively the same
Current at max power 14.86 A 15.26 A Effectively the same
Temperature
Temperature coefficient -0.280 %/°C -0.280 %/°C Same
Mechanical
Dimensions 2382x1133x30 mm 2382x1133x30 mm Same
Module area 2.699 m² 2.699 m² Same
Weight 33.6 kg 33.6 kg Same
Weight per kWp 55.5 kg/kWp 52.5 kg/kWp -3.0 kg/kWp for 640
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 132 132 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#4,763 vs #516
640 leads by 4,247 places
Power density
#4,761 vs #516
640 leads by 4,245 places
Heat behaviour
#1,309 vs #1,309
Tied - the same position in the database
Weight
#9,895 vs #6,043
640 leads by 3,852 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#3,688 vs #1,529
640 leads by 2,159 places
05

More useful comparisons

Open the full database
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Adani Solar AB-G12R-132-605 vs Adani Solar AB-G12R-132-615
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Adani Solar AB-G12R-132-605 vs Adani Solar AB-G12R-132-610
The same specification on paper
06

Written summary

07

Questions about this pairing

Which panel is better: Adani Solar AB-G12R-132-605 or Adani Solar AB-G12R-132-640?
According to our database: Adani Solar AB-G12R-132-640 has higher module efficiency (23.71% vs 22.42%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Adani Solar AB-G12R-132-605 and Adani Solar AB-G12R-132-640?
Adani Solar AB-G12R-132-605 has a module efficiency of 22.42%, 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 AB-G12R-132-605 use vs Adani Solar AB-G12R-132-640?
Adani Solar AB-G12R-132-605 uses TOPCon 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 AB-G12R-132-605 and Adani Solar AB-G12R-132-640?
Adani Solar AB-G12R-132-605 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 AB-G12R-132-605 and Adani Solar AB-G12R-132-640 bifacial panels?
Both Adani Solar AB-G12R-132-605 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.

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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.