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Solarwatt Brand review

SOLARWATT Panel vision M 5.0 450 Wp

450 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, heavy for its output

Rank 5,200 of 14,005
Compare panels Datasheet PDF
Power (Wp)
450
Weak · bottom 9%
Efficiency (%)
22.50
Typical · median 22.52%
Density (Wp/m²)
225.2
Typical · median 225.2
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
24.8
Weak · bottom 15%
Warranty (yrs)
30
Typical · median 30 yrs

Solarwatt Panel vision M 5.0 style photovoltaic panels are the answer to the needs of the most demanding users, focusing on glass-glass technology as the foundation of reliability. This unique construction makes the modules almost completely resistant to the negative effects of atmospheric factors such as ammonia, salt mist, or rapid temperature changes, which directly translates into eliminating the risk of cell degradation. The use of double-sided tempered glass makes these components significantly less susceptible to PID and LID phenomena. Thanks to the use of precisely selected monocrystalline cells in an aesthetic full black variant, this series blends perfectly with modern architecture, solving the problem of unsightly roof installations. The innovative design provides not only the highest class of fire protection but also guarantees maximum longevity and stability of energy yields for many years. This product is dedicated to prosumers who view photovoltaics as a long-term investment and seek solutions with increased mechanical resistance. What distinguishes this series from standard competition is the unique harmony between strict technical parameters and an elegant finish, making it a leader in the premium segment for single-family housing and facilities with high technical requirements.

Ranking

1,089 panels in the segment TOPCon 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.50% 22.52% Typical 4,222
Power density 225.2 225.2 Typical 4,225
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 55.1 52.2 Weak · bottom 15% 9,543
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 1 caution
Best for

Residential and commercial.

Not ideal for

Weight-limited structures.

Watch-outs
55.1 kg per kWp

Bottom 15% of the TOPCon 450-500 W segment, against a median of 52.2.

Notes from the database
  • Efficiency of 22.5% matches the TOPCon 450-500W median
  • Power density of 225.2 W/m² matches the TOPCon 450-500W median
  • Temperature coefficient of -0.29%/°C matches the TOPCon 450-500W median
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
  • In the top 30% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 450 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.50 % Typical Segment median 22.52%
Vmpp · Impp 33.20 V · 13.50 A Operating point at max power
Voc · Isc 39.80 V · 14.00 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1762×1134×35 mm · 2.00 m² of roof
Weight 24.8 kg Weak Weak · bottom 15%
Cells 108 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.050 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 30 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 90.0 % Equals 405 W guaranteed

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
-0.290 %/°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.

Alternatives

All Solarwatt panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Solarwatt SOLARWATT Panel vision M 5.0 450 Wp 450 W 22.50% -0.290 24.8 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +45 W, lighter, +2.3 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +40 W, lighter, +2.0 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +50 W, cooler, +2.0 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +50 W, lighter, +2.0 pp
GK-3-54HGb-500M 500 W 24.50% -0.260 21.4 kg +50 W, lighter, +2.0 pp
GCL-NR10R/54BGDF 500 W 24.50% -0.260 24.6 kg +50 W, cooler, +2.0 pp
SOLARWATT Panel vision M 5.0 440Wp 440 W 22.00% -0.290 24.8 kg -10 W, -0.5 pp
SOLARWATT Panel vision M 5.0 445 Wp 445 W 22.30% -0.290 24.8 kg Very close match
SOLARWATT Panel vision M 5.0 455 Wp 455 W 22.80% -0.290 24.8 kg +0.3 pp
SOLARWATT Panel vision M 5.0 460 Wp 460 W 23.00% -0.290 24.8 kg +10 W, +0.5 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +60 W, cooler, +2.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +55 W, cooler, +2.2 pp

Found 1395 panels of the same or similar size to this one, within ±10 mm. See them here Found 1425 panels of the same or similar size to this one, within ±25 mm. See them here Found 3614 panels of the same or similar size to this one, within ±50 mm. See them here Found 3962 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the Solarwatt Panel vision M 5.0 style series still available for purchase?
The Solarwatt Panel vision M 5.0 style series has been discontinued and is no longer part of the manufacturer's active lineup. Some distributors may still carry remaining stock, so it is worth checking directly with your dealer. Alternatively, consider the newer Solarwatt vision M 5.5, which carries forward the same glass-glass philosophy with updated specifications.
What warranty does the Solarwatt Panel vision M 5.0 style come with?
The Solarwatt Panel vision M 5.0 style includes a 30-year product warranty covering manufacturing defects and structural integrity, plus a 30-year power output warranty guaranteeing at least 90% of nominal power over that entire period. This is among the most comprehensive warranty packages in the industry — the typical market standard is 12–15 years for product warranty and 25 years for power output.
What is the glass-glass construction in the Solarwatt vision M 5.0 style and why does it matter?
Standard PV modules use a polymer backsheet to protect cells from behind. Glass-glass construction replaces the backsheet with a second tempered glass pane, eliminating the primary degradation pathways: moisture ingress, ammonia exposure, salt mist, and thermal shock. The result is a dramatically reduced risk of PID and LID effects, greater mechanical strength, and an expected service life well in excess of 30 years with stable energy yields.
What does it mean that the Solarwatt vision M 5.0 style is bifacial and uses TOPCon technology?
TOPCon (Tunnel Oxide Passivated Contact) is the next-generation cell technology after PERC, delivering higher efficiency through improved contact passivation. Bifacial means the cells generate power from both direct front-side irradiance and reflected rear-side irradiance through the back glass. On installations with light-colored surfaces — gravel, concrete, or snow — bifacial operation can increase annual energy yield by 5–15% compared to monofacial modules.
Does the full-black finish of the Solarwatt vision M 5.0 style negatively affect its performance?
The black cells, black frame, and black rear glass absorb more heat than standard modules, which can marginally reduce instantaneous efficiency at very high temperatures. However, TOPCon's temperature coefficient of approximately -0.29%/°C is more favorable than PERC (-0.35%/°C), so the real-world impact on annual yield is minimal. The visual result significantly enhances the appearance of the installation on modern rooftops.
How do the Solarwatt Panel vision M 5.0 style panels perform in winter and under low-irradiance conditions?
With a temperature coefficient of -0.29%/°C, these modules maintain better efficiency on hot days than older PERC panels. In winter, the glass-glass structure provides superior resistance to snow loads and thermal shock cycles. TOPCon cells also harvest energy more efficiently under diffuse light — overcast skies, dawn, and dusk — which translates into higher annual energy yields in central European climates.
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