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Vikram Solar Brand review

HYPERSOL VSMDH.66.645.05

645 Wp N-type Bifacial 80%
ComparePV verdict

Space saver, no clear weak spot

Rank 1,372 of 14,129
Compare panels Datasheet PDF
Power (Wp)
645
Strong · top 3%
Efficiency (%)
23.88
Strong · top 4%
Density (Wp/m²)
238.8
Strong · top 2%
Temp (%/°C)
-0.280
Strong · top 15%
Weight (kg)
33.4
Typical · median 32.8 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Vikram Solar HYPERSOL VSMDH.66.AAA.05 series consists of bifacial glass-glass solar modules built for installers and investors who want the highest possible yield from every square meter of roof or ground space. Thanks to half-cut N-type G12 cells, these panels reduce current-mismatch losses across the string, resulting in more stable performance for the entire array. What sets this series apart is its bifaciality of up to 80 percent, allowing it to capture additional energy reflected from the ground, which is especially valuable in ground-mount installations and light-colored surfaces. The manufacturer also implemented a zero negative power tolerance, so the actual output of installed panels never falls below the stated nominal value. A design resistant to PID, LID, and LeTID degradation ensures better durability under demanding operating conditions, while an independently verified hail test confirms the strong mechanical resistance of the front glass. Backed by a 30-year linear power warranty, this series is an attractive choice for both commercial rooftop projects and large utility-scale solar farms, where a low LCOE and predictable long-term performance matter most.

Ranking

368 panels in the segment N-type 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.88% 22.77% Strong · top 4% 421
Power density 238.8 227.7 Strong · top 2% 383
Temperature coefficient -0.280 -0.290 Strong · top 15% 1,347
Weight per kWp 51.8 52.8 Typical 5,185
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

3 positive · 0 caution
Best for

Utility-scale, commercial and agrivoltaic.

Strengths
238.8 watts per square metre

Top 2% of the N-type 600-650 W segment, against a median of 227.7. Ranked 383rd in the whole database.

23.88% module efficiency

Top 4% of the N-type 600-650 W segment, against a median of 22.77%. Ranked 421st in the whole database.

-0.280 %/°C temperature coefficient

Top 15% of the N-type 600-650 W segment, against a median of -0.290.

Notes from the database
  • At 23.9% efficiency, this panel is 1.1pp above typical N-type 600-650W modules (median: 22.8%)
  • 238.8 W/m² power density - 11.1 W/m² more than N-type 600-650W median (227.7 W/m²), more power per roof area
  • Temperature coefficient of -0.28%/°C matches the N-type 600-650W median
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
  • In the top 3% for efficiency among all N-type panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 645 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.88 % Strong Segment median 22.77%
Vmpp · Impp 42.20 V · 15.30 A Operating point at max power
Voc · Isc 50.10 V · 16.22 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2382×1134×30 mm · 2.70 m² of roof
Weight 33.4 kg Typical Typical · median 32.8 kg
Cells 132 · N-type Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.280 %/°C Strong top 15% of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 564 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Vikram Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 645 Wp appear here. The rest cover the whole series.

Performance Warranty Performance Warranty Whole series

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-
With bifacial gain
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.280 %/°C against a segment median of -0.290
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Vikram Solar HYPERSOL VSMDH.66.645.05 645 W 23.88% -0.280 33.4 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +1.3 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +35 W, lighter, +1.3 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +30 W, lighter, +1.1 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +1.1 pp
WST-675BKX72-A2 675 W 25.00% -0.260 32.1 kg +30 W, cooler, +1.1 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +50 W, cooler, +1.0 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +25 W, lighter, +0.9 pp
HYPERSOL VSMDH.66.610.05 610 W 22.58% -0.280 32.1 kg -35 W, lighter, -1.3 pp
HYPERSOL VSMDH.66.615.05 615 W 22.77% -0.290 32.1 kg -30 W, lighter, -1.1 pp
HYPERSOL VSMDH.66.620.05 620 W 22.95% -0.280 33.4 kg -25 W, -0.9 pp
HYPERSOL VSMDH.66.625.05 625 W 23.14% -0.280 33.4 kg -20 W, -0.7 pp
HYPERSOL VSMDH.66.630.05 630 W 23.32% -0.280 33.4 kg -15 W, -0.6 pp
HYPERSOL VSMDH.66.635.05 635 W 23.51% -0.280 33.4 kg -10 W, -0.4 pp
HYPERSOL VSMDH.66.640.05 640 W 23.69% -0.280 33.4 kg Very close match
ENERSURGE VSMDH.66.650.05 650 W 24.06% -0.260 33.4 kg Cooler
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +55 W, cooler, +1.1 pp

Found 1144 panels of the same or similar size to this one, within ±10 mm. See them here Found 1150 panels of the same or similar size to this one, within ±25 mm. See them here Found 1261 panels of the same or similar size to this one, within ±50 mm. See them here Found 1942 panels of the same or similar size to this one, within ±100 mm. See them here

About the HYPERSOL VSMDH.66.AAA.05 series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

What is the warranty on Vikram Solar HYPERSOL VSMDH.66.AAA.05 modules?
The series comes with a standard 12-year product warranty and a 30-year linear power warranty, guaranteeing high energy output even after three decades of operation. This is one of the longer warranty periods on the market, making the model an attractive choice for commercial installations and PV farms where predictable long-term ROI matters.
What benefit does the up to 80% bifaciality of the HYPERSOL VSMDH.66.AAA.05 panels provide?
Thanks to the glass-glass construction and a bifaciality factor of up to 80%, the rear side of the module captures additional light reflected from the ground, roof, or surroundings. In ground-mount installations, on light gravel, white roofs, or agri-PV farms, this can boost energy yield by several percent compared to monofacial panels, without increasing the installed footprint.
How do N-type half-cut G12 cells differ from classic PERC cells?
N-type cells have lower light-induced degradation (LID) and light- and elevated temperature-induced degradation (LeTID), plus higher efficiency than older P-type PERC cells. The half-cut format in the G12 size splits each cell in half, reducing current losses and internal resistance, improving module performance under partial shading, and boosting total panel power up to 720 Wp.
Are the HYPERSOL VSMDH.66.AAA.05 panels suitable for large solar farms?
Yes, the high unit power of 720 Wp combined with bifaciality and resistance to PID, LID, and LeTID make this series designed for large ground-mount and commercial installations where a low levelized cost of energy (LCOE) per watt matters. Fewer modules are needed to reach a given capacity, lowering mounting structure, cabling, and installation labor costs.
What does zero negative power tolerance mean for these panels?
Zero negative power tolerance means the actual output of every manufactured panel is never lower than the value stated on the label - it can only be equal to or slightly higher. For investors, this guarantees that the purchased system capacity will be fully delivered, removing the risk of underestimated energy production from day one.
Is Vikram Solar a proven manufacturer, and where are HYPERSOL panels made?
Vikram Solar is an Indian PV module manufacturer with Tier 1 classification, confirming its financial stability and production track record as recognized by market analysts such as BloombergNEF. HYPERSOL VSMDH.66.AAA.05 panels are manufactured in India, and their PID-, LID-, and LeTID-resistant construction along with a passed independent hail impact test confirm solid build quality.
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