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640.05 vs AAA.05-715 9 of 19 identical Swap Change panels

Vikram Solar HYPERSOL VSMDH.66.640.05 vs Vikram Solar HYPERSOL VSMDH.66.AAA.05-715

Vikram Solar
HYPERSOL VSMDH.66.640.05
640 Wp 23.69 % N-type Bifacial
Open panel page Datasheet PDF
VS
Vikram Solar
HYPERSOL VSMDH.66.AAA.05-715
715 Wp 23.02 % N-type Bifacial
Open panel page Datasheet PDF
The verdict

640.05 leads on the differences that matter

The largest is module efficiency: 0.67 pp more efficient. 9 of 19 comparable parameters are identical.

See all 10 differences
How alike are they
9 of 19 comparable
parameters are identical
identical differs
01

What actually differs

10 of 19 parameters
Parameter 640.05 AAA.05-715 Difference
Module efficiency 23.69 % 23.02 % 0.67 pp more efficient
Rated power 640 Wp 715 Wp 75 W more power
Weight 33.4 kg 39.5 kg 6.1 kg lighter
Power density 236.9 Wp/m² 230.2 Wp/m² 6.8 Wp/m² higher
Short-circuit current 16.16 A 18.48 A 2.32 A apart
Module area 2.701 m² 3.106 m² 0.405 m² apart
Weight per kWp 52.2 kg/kWp 55.2 kg/kWp 3.1 kg/kWp lighter
Current at max power 15.25 A 17.45 A 2.20 A apart
Dimensions 2382x1134x30 mm 2384x1303x35 mm 2382x1134x30 mm vs 2384x1303x35 mm
Voltage at max power 42.00 V 41.00 V 1.00 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.
640.05
21,473 kWh
AAA.05-715
23,990 kWh
Lifetime gap
2,517 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 640.05 AAA.05-715
Standard test conditions 25 °C 100.0% of rated power 640 W 715 W
Cool, bright day 40 °C 95.8% of rated power 613 W 685 W
Typical summer roof 55 °C 91.6% of rated power 586 W 655 W
Hot roof 70 °C 87.4% of rated power 559 W 625 W
03

Full specification

Parameter 640.05 AAA.05-715 Difference
Power and efficiency
Rated power 640 Wp 715 Wp +75 W for AAA.05-715
Module efficiency 23.69 % 23.02 % +0.67 pp for 640.05
Power density 236.9 Wp/m² 230.2 Wp/m² +6.8 Wp/m² for 640.05
Open-circuit voltage 49.90 V 49.20 V Effectively the same
Voltage at max power 42.00 V 41.00 V 1.00 V apart
Short-circuit current 16.16 A 18.48 A 2.32 A apart
Current at max power 15.25 A 17.45 A 2.20 A apart
Temperature
Temperature coefficient -0.280 %/°C -0.280 %/°C Same
Mechanical
Dimensions 2382x1134x30 mm 2384x1303x35 mm 2382x1134x30 mm vs 2384x1303x35 mm
Module area 2.701 m² 3.106 m² 0.405 m² apart
Weight 33.4 kg 39.5 kg -6.1 kg for 640.05
Weight per kWp 52.2 kg/kWp 55.2 kg/kWp -3.1 kg/kWp for 640.05
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 N-type N-type Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 132 Same
Bifacial Yes Yes Same
04

Against the whole database

14,129 panels
Efficiency
#612 vs #1,847
640.05 leads by 1,235 places
Power density
#553 vs #2,070
640.05 leads by 1,517 places
Heat behaviour
#1,347 vs #1,347
Tied - the same position in the database
Weight
#5,707 vs #9,763
640.05 leads by 4,056 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#1,555 vs #734
AAA.05-715 leads by 821 places
05

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06

Written summary

07

Questions about this pairing

Which panel is better: Vikram Solar HYPERSOL VSMDH.66.640.05 or Vikram Solar HYPERSOL VSMDH.66.AAA.05-715?
According to our database: Vikram Solar HYPERSOL VSMDH.66.640.05 has higher module efficiency (23.69% vs 23.02%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Vikram Solar HYPERSOL VSMDH.66.640.05 and Vikram Solar HYPERSOL VSMDH.66.AAA.05-715?
Vikram Solar HYPERSOL VSMDH.66.640.05 has a module efficiency of 23.69%, while Vikram Solar HYPERSOL VSMDH.66.AAA.05-715 is 23.02%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Vikram Solar HYPERSOL VSMDH.66.640.05 use vs Vikram Solar HYPERSOL VSMDH.66.AAA.05-715?
Vikram Solar HYPERSOL VSMDH.66.640.05 uses N-type cells; Vikram Solar HYPERSOL VSMDH.66.AAA.05-715 uses N-type. 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 Vikram Solar HYPERSOL VSMDH.66.640.05 and Vikram Solar HYPERSOL VSMDH.66.AAA.05-715?
Vikram Solar HYPERSOL VSMDH.66.640.05 has a 30 years power warranty; Vikram Solar HYPERSOL VSMDH.66.AAA.05-715 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 Vikram Solar HYPERSOL VSMDH.66.640.05 and Vikram Solar HYPERSOL VSMDH.66.AAA.05-715 bifacial panels?
Both Vikram Solar HYPERSOL VSMDH.66.640.05 and Vikram Solar HYPERSOL VSMDH.66.AAA.05-715 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.