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640 vs 605 14 of 19 identical Swap Change panels

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

Adani Solar
AB-G12R-132-640
640 Wp 23.71 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Adani Solar
AB-G12R-132-605
605 Wp 22.42 % 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 640 605 Difference
Module efficiency 23.71 % 22.42 % 1.29 pp more efficient
Power density 237.1 Wp/m² 224.2 Wp/m² 13.0 Wp/m² higher
Rated power 640 Wp 605 Wp 35 W more power
Weight per kWp 52.5 kg/kWp 55.5 kg/kWp 3.0 kg/kWp lighter
Voltage at max power 42.00 V 40.72 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.
640
21,473 kWh
605
20,299 kWh
Lifetime gap
1,174 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 640 605
Standard test conditions 25 °C 100.0% of rated power 640 W 605 W
Cool, bright day 40 °C 95.8% of rated power 613 W 580 W
Typical summer roof 55 °C 91.6% of rated power 586 W 554 W
Hot roof 70 °C 87.4% of rated power 559 W 529 W
03

Full specification

Parameter 640 605 Difference
Power and efficiency
Rated power 640 Wp 605 Wp +35 W for 640
Module efficiency 23.71 % 22.42 % +1.29 pp for 640
Power density 237.1 Wp/m² 224.2 Wp/m² +13.0 Wp/m² for 640
Open-circuit voltage 49.06 V 48.14 V Effectively the same
Voltage at max power 42.00 V 40.72 V 1.28 V apart
Short-circuit current 16.09 A 15.87 A Effectively the same
Current at max power 15.26 A 14.86 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 52.5 kg/kWp 55.5 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
#516 vs #4,763
640 leads by 4,247 places
Power density
#516 vs #4,761
640 leads by 4,245 places
Heat behaviour
#1,309 vs #1,309
Tied - the same position in the database
Weight
#6,043 vs #9,895
640 leads by 3,852 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#1,529 vs #3,688
640 leads by 2,159 places
05

More useful comparisons

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06

Written summary

07

Questions about this pairing

Which panel is better: Adani Solar AB-G12R-132-640 or Adani Solar AB-G12R-132-605?
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-132-640 and Adani Solar AB-G12R-132-605?
Adani Solar AB-G12R-132-640 has a module efficiency of 23.71%, while Adani Solar AB-G12R-132-605 is 22.42%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Adani Solar AB-G12R-132-640 use vs Adani Solar AB-G12R-132-605?
Adani Solar AB-G12R-132-640 uses TOPCon cells; Adani Solar AB-G12R-132-605 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-132-640 and Adani Solar AB-G12R-132-605?
Adani Solar AB-G12R-132-640 has a 30 years power warranty; Adani Solar AB-G12R-132-605 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-132-640 and Adani Solar AB-G12R-132-605 bifacial panels?
Both Adani Solar AB-G12R-132-640 and Adani Solar AB-G12R-132-605 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.