Vikram Solar HYPERSOL VSMDH.78.615.05 vs Vikram Solar HYPERSOL VSMDH.78.620.05
VS
The verdict
Identical on every published parameter
All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from.
How alike are they
19
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
0 of 19 parameters
What actually differs
Every comparable parameter agrees. The full specification is below.
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.
615.05
20,634 kWh
620.05
20,802 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
615.05
620.05
Standard test conditions
25 °C
100.0% of rated power
615 W
620 W
Cool, bright day
40 °C
95.5% of rated power
587 W
592 W
Typical summer roof
55 °C
91.0% of rated power
560 W
564 W
Hot roof
70 °C
86.5% of rated power
532 W
536 W
03
Full specification
Parameter
615.05
620.05
Difference
Power and efficiency
Rated power
615 Wp
620 Wp
Effectively the same
Module efficiency
22.08 %
22.26 %
Effectively the same
Power density
220.8 Wp/m²
222.6 Wp/m²
Effectively the same
Open-circuit voltage
54.70 V
54.90 V
Effectively the same
Voltage at max power
45.90 V
46.10 V
Effectively the same
Short-circuit current
14.06 A
14.12 A
Effectively the same
Current at max power
13.41 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
56.9 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
14,129 panels
Against the whole database
Efficiency
#6,179
vs
#5,656
620.05 leads by 523 places
Power density
#6,102
vs
#5,563
620.05 leads by 539 places
Heat behaviour
#6,152
vs
#6,152
Tied - the same position in the database
Weight
#11,006
vs
#10,738
620.05 leads by 268 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#3,862
vs
#3,459
620.05 leads by 403 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Vikram Solar HYPERSOL VSMDH.78.615.05 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 22.08%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Vikram Solar HYPERSOL VSMDH.78.615.05 and Vikram Solar HYPERSOL VSMDH.78.620.05?
Vikram Solar HYPERSOL VSMDH.78.615.05 has a module efficiency of 22.08%, 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.78.615.05 use vs Vikram Solar HYPERSOL VSMDH.78.620.05?
Vikram Solar HYPERSOL VSMDH.78.615.05 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.78.615.05 and Vikram Solar HYPERSOL VSMDH.78.620.05?
Vikram Solar HYPERSOL VSMDH.78.615.05 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.78.615.05 and Vikram Solar HYPERSOL VSMDH.78.620.05 bifacial panels?
Both Vikram Solar HYPERSOL VSMDH.78.615.05 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.