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SpolarPV SPV445-TM10-108
SpolarPV Brand review

SPV445-TM10-108

445 Wp TOPCon
ComparePV verdict

Space saver, no clear weak spot

Rank 8,782 of 14,005
Compare panels Datasheet PDF
Power (Wp)
445
Strong · top 8%
Efficiency (%)
22.83
Strong · top 1%
Density (Wp/m²)
228.2
Strong · top 1%
Temp (%/°C)
-0.300
Typical · median -0.290
Weight (kg)
21.5
Strong · top 24%
Warranty (yrs)
30
Typical · median 30 yrs

The SpolarPV SPV445-TM10-108 photovoltaic panel series utilizes an advanced technological platform based on the M10 wafer format, which significantly increases power density while maintaining compact module dimensions. The design, based on 108 Half-Cut cells, effectively reduces losses resulting from internal resistance and minimizes the risk of micro-cracks, which translates into a longer lifespan for the entire installation. A key distinguishing feature is the use of Multi-Busbar (MBB) technology, which not only optimizes the current flow path but also improves light absorption in difficult weather conditions, such as heavy cloud cover or low solar incidence angles. For investors looking for aesthetics and efficiency, this model offers a perfect balance, solving the problem of limited mounting space on residential rooftops. Unlike standard modules, the SPV445-TM10-108 is characterized by high resistance to LID and PID phenomena, guaranteeing stable energy yields over several decades. It is an ideal choice for prosumers expecting maximum module efficiency at a reasonable price, combining innovative cell architecture with high mechanical resistance to extreme snow and wind loads.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.83% 22.00% Strong · top 1% 2,683
Power density 228.2 220.2 Strong · top 1% 2,754
Temperature coefficient -0.300 -0.290 Typical 6,093
Weight per kWp 48.3 51.4 Strong · top 24% 2,192
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

Residential and shaded-installations.

Strengths
228.2 watts per square metre

Top 1% of the TOPCon 400-450 W segment, against a median of 220.2. Ranked 2,754th in the whole database.

22.83% module efficiency

Top 1% of the TOPCon 400-450 W segment, against a median of 22.00%. Ranked 2,683rd in the whole database.

48.3 kg per kWp

Top 24% of the TOPCon 400-450 W segment, against a median of 51.4.

Notes from the database
  • At 22.8% efficiency, this panel is 0.8pp above typical TOPCon 400-450W modules (median: 22.0%)
  • Power density of 228.2 W/m² packs 8.0 W/m² more into the same footprint vs TOPCon 400-450W median (220.2 W/m²)
  • At -0.30%/°C, hot weather performance is typical for TOPCon 400-450W panels
  • In the top 19% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 445 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.83 % Strong Segment median 22.00%
Vmpp · Impp 33.12 V · 13.44 A Operating point at max power
Voc · Isc 40.15 V · 14.37 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1721×1133×30 mm · 1.95 m² of roof
Weight 21.5 kg Strong Strong · top 24%
Cells 108 · TOPCon Monocrystalline
Coefficient Pmax -0.300 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.275 · 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 84.8 % Equals 377 W guaranteed
Degradation 2.00 → 0.46 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by SpolarPV in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 445 Wp appear here. The rest cover the whole series.

Guaranteed Power Performance (Linear Power Warranty) Guaranteed Power Performance (Linear Power Warranty) Whole series Current-Voltage Curve under different irradiance Current-Voltage Curve under different irradiance Whole series Current-Voltage Curve under different working temperatures Current-Voltage Curve under different working temperatures 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
-

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

Heat losses
-0.300 %/°C against a segment median of -0.290
-

Alternatives

All SpolarPV panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
SpolarPV SPV445-TM10-108 445 W 22.83% -0.300 21.5 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +50 W, cooler, +2.0 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +45 W, cooler, +1.7 pp
STP-NT11/48QGSF-490 490 W 24.50% -0.260 21.5 kg +45 W, cooler, +1.7 pp
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +40 W, cooler, +1.5 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +40 W, cooler, +1.5 pp
LR7-54HJD-495M 495 W 24.30% -0.240 23.5 kg +50 W, cooler, +1.5 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +40 W, cooler, +1.5 pp
SP310RHM6-54L 310 W 15.87% -0.350 21.0 kg -135 W, -7.0 pp, -5 yr warranty
SP350YHM6-54L 350 W 17.92% -0.350 21.0 kg -95 W, -4.9 pp, -5 yr warranty
SP370GHM6-54L 370 W 18.94% -0.350 21.0 kg -75 W, -3.9 pp, -5 yr warranty
SP380GHM6-54L 380 W 19.45% -0.350 21.0 kg -65 W, -3.4 pp, -5 yr warranty
SPV420-TM10-108 420 W 21.54% -0.300 21.5 kg -25 W, -1.3 pp
SPV425-TM10-108 425 W 21.80% -0.300 21.5 kg -20 W, -1.0 pp
SPV425-TM10-108BD 425 W 21.76% - 23.5 kg -20 W, heavier, -1.1 pp
SPV430-TM10-108 430 W 22.05% -0.300 21.5 kg -15 W, -0.8 pp
SPV430-TM10-108BD 430 W 22.01% - 23.5 kg -15 W, heavier, -0.8 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +65 W, cooler, +2.2 pp

Found 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1914 panels of the same or similar size to this one, within ±25 mm. See them here Found 3392 panels of the same or similar size to this one, within ±50 mm. See them here Found 3978 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty does the SpolarPV SPV445-TM10-108 come with and what does it cover?
The SPV445-TM10-108 series includes a 12-year product warranty covering manufacturing defects and a 30-year linear power output warranty — a premium-tier commitment standard for TOPCon modules. The power warranty guarantees at least 87.4% of nominal output after 30 years. This is a key factor for residential prosumers calculating long-term return on investment from their PV installation.
What is TOPCon technology used in the SPV445-TM10-108 and is it worth the premium?
TOPCon (Tunnel Oxide Passivated Contact) is a next-generation cell architecture that outperforms PERC by adding a passivation layer that reduces electron recombination. The result is higher efficiency and better performance at elevated temperatures. For a typical residential rooftop of 30–40 m², this translates to several percentage points more annual energy yield compared to older technologies using the same roof area.
Do the SPV445-TM10-108 panels perform well on cloudy days and in low-irradiance conditions?
Yes. The Multi-Busbar (MBB) design improves absorption of diffuse light, which is common on overcast days. More busbars shorten current paths and enhance output under low sun angles — typical during morning, evening, and autumn months. TOPCon cells also have a lower temperature coefficient, which limits power losses during hot, sunny days compared to PERC-based modules.
Is the SPV445-TM10-108 series suitable for a small pitched residential roof?
Absolutely. The M10 wafer format combined with 108 half-cut cells delivers 445 Wp in a compact module footprint, making it easier to fit the right number of panels on a limited roof area. The half-cut cell design also reduces the impact of partial shading — from a chimney or dormer window — since splitting each cell means a shaded section no longer blocks the entire string.
How does the SPV445-TM10-108 resist LID and PID degradation compared to standard panels?
LID (Light Induced Degradation) causes a power drop shortly after commissioning, while PID (Potential Induced Degradation) results in long-term losses driven by high system voltage. The SPV445-TM10-108 benefits from TOPCon architecture and MBB technology, both of which significantly reduce susceptibility to both phenomena. This means more stable energy output over the system's lifetime and actual yields that align more closely with initial projections.
Is SpolarPV a Tier 1 manufacturer and does that affect the reliability of the SPV445-TM10-108?
SpolarPV is not currently listed as a Bloomberg Tier 1 manufacturer. Tier 1 status primarily reflects a company's financial capacity and production scale, not module quality directly. Before purchasing, it is advisable to confirm that local warranty service is available in your country and that the distributor provides adequate support for any claims within the 12-year product warranty period.
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