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605.05 vs 620.05 16 of 19 identical Swap Change panels

Vikram Solar HYPERSOL VSMDH.78.605.05 vs Vikram Solar HYPERSOL VSMDH.78.620.05

Vikram Solar HYPERSOL VSMDH.78.605.05
Vikram Solar
HYPERSOL VSMDH.78.605.05
605 Wp 21.72 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Vikram Solar HYPERSOL VSMDH.78.620.05
Vikram Solar
HYPERSOL VSMDH.78.620.05
620 Wp 22.26 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

620.05 leads on the differences that matter

The largest is module efficiency: 0.54 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs
01

What actually differs

3 of 19 parameters
Parameter 605.05 620.05 Difference
Module efficiency 21.72 % 22.26 % 0.54 pp more efficient
Power density 217.2 Wp/m² 222.6 Wp/m² 5.4 Wp/m² higher
Rated power 605 Wp 620 Wp 15 W more power
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 (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
605.05
20,299 kWh
620.05
20,802 kWh
Lifetime gap
503 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 605.05 620.05
Standard test conditions 25 °C 100.0% of rated power 605 W 620 W
Cool, bright day 40 °C 95.5% of rated power 578 W 592 W
Typical summer roof 55 °C 91.0% of rated power 551 W 564 W
Hot roof 70 °C 86.5% of rated power 523 W 536 W
03

Full specification

Parameter 605.05 620.05 Difference
Power and efficiency
Rated power 605 Wp 620 Wp +15 W for 620.05
Module efficiency 21.72 % 22.26 % +0.54 pp for 620.05
Power density 217.2 Wp/m² 222.6 Wp/m² +5.4 Wp/m² for 620.05
Open-circuit voltage 54.30 V 54.90 V Effectively the same
Voltage at max power 45.53 V 46.10 V Effectively the same
Short-circuit current 13.94 A 14.12 A Effectively the same
Current at max power 13.30 A 13.45 A Effectively the same
Temperature
Temperature coefficient -0.300 %/°C -0.300 %/°C Same
Mechanical
Dimensions 2456x1134x35 mm 2456x1134x35 mm Same
Module area 2.785 m² 2.785 m² Same
Weight 35.0 kg 35.0 kg Same
Weight per kWp 57.9 kg/kWp 56.5 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 156 156 Same
Bifacial Yes Yes Same
04

Against the whole database

14,129 panels
Efficiency
#7,463 vs #5,656
620.05 leads by 1,807 places
Power density
#7,445 vs #5,563
620.05 leads by 1,882 places
Heat behaviour
#6,152 vs #6,152
Tied - the same position in the database
Weight
#11,539 vs #10,738
620.05 leads by 801 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#4,584 vs #3,459
620.05 leads by 1,125 places
05

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06

Written summary

07

Questions about this pairing

Which panel is better: Vikram Solar HYPERSOL VSMDH.78.605.05 or Vikram Solar HYPERSOL VSMDH.78.620.05?
According to our database: Vikram Solar HYPERSOL VSMDH.78.620.05 has higher module efficiency (22.26% vs 21.72%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Vikram Solar HYPERSOL VSMDH.78.605.05 and Vikram Solar HYPERSOL VSMDH.78.620.05?
Vikram Solar HYPERSOL VSMDH.78.605.05 has a module efficiency of 21.72%, while Vikram Solar HYPERSOL VSMDH.78.620.05 is 22.26%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Vikram Solar HYPERSOL VSMDH.78.605.05 use vs Vikram Solar HYPERSOL VSMDH.78.620.05?
Vikram Solar HYPERSOL VSMDH.78.605.05 uses TOPCon cells; Vikram Solar HYPERSOL VSMDH.78.620.05 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 Vikram Solar HYPERSOL VSMDH.78.605.05 and Vikram Solar HYPERSOL VSMDH.78.620.05?
Vikram Solar HYPERSOL VSMDH.78.605.05 has a 30 years power warranty; Vikram Solar HYPERSOL VSMDH.78.620.05 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.78.605.05 and Vikram Solar HYPERSOL VSMDH.78.620.05 bifacial panels?
Both Vikram Solar HYPERSOL VSMDH.78.605.05 and Vikram Solar HYPERSOL VSMDH.78.620.05 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.