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SpolarPV Brand review

SPV425-TM10-108BD

425 Wp TOPCon
ComparePV verdict

Solid all-round for its segment

Rank 10,430 of 14,129
Compare panels Datasheet PDF
Power (Wp)
425
Typical for its class
Efficiency (%)
21.76
Typical · median 22.00%
Density (Wp/m²)
217.6
Typical · median 220.2
Temp (%/°C)
-
Not published
Weight (kg)
23.5
Typical · median 22.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

The SpolarPV TM10 series is a line of solar modules built on N-type TOPCon technology, designed for installations where maximizing energy yield from every square meter of roof or ground space is essential. The use of half-cut cells combined with an advanced multi-busbar structure reduces resistive losses and limits the impact of partial shading on the module's overall performance, resulting in more stable energy production under real, variable weather conditions. TM10 is available in both a standard configuration and a dual glass version, which significantly improves mechanical durability, reduces microcracking, and extends the actual service life of the installation, while the dual glass variant additionally enables bifacial operation, boosting total energy yield without increasing the mounting area. For investors who value aesthetics, an ultra-black version is available, ideal for residential rooftop installations where appearance matters as much as performance. Low annual degradation and a long-term product warranty make the TM10 series suitable for both commercial and residential projects, delivering a predictable LCOE and reduced strain on the BoS thanks to higher operating currents.

Ranking

1,220 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.76% 22.00% Typical 7,349
Power density 217.6 220.2 Typical 7,372
Temperature coefficient - -0.290 Not published 14,048
Weight per kWp 55.3 51.5 Typical 9,828
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 · 0 caution
Best for

Residential, commercial and shaded-installations.

Notes from the database
  • Efficiency of 21.8% matches the TOPCon 400-450W median
  • At 217.6 W/m² power density, roof space requirements are typical for TOPCon 400-450W panels
  • Weight of 23.5 kg is 1.5 kg above TOPCon 400-450W median (22.0 kg) - verify structural support
  • #7349 for efficiency, #14048 for temperature performance out of 14129 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 425 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.76 % Typical Segment median 22.00%
Vmpp · Impp 32.26 V · 13.18 A Operating point at max power
Voc · Isc 38.08 V · 14.10 A Sizes the string length
Dimensions 1724×1133×30 mm · 1.95 m² of roof
Weight 23.5 kg Typical Typical · median 22.0 kg
Cells 108 · TOPCon Monocrystalline
Product warranty 12 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 88.1 % Equals 371 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

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
-
-

Alternatives

All SpolarPV panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
SpolarPV SPV425-TM10-108BD 425 W 21.76% - 23.5 kg You are here
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg +50 W, +2.2 pp, +10 yr warranty
JST-EDMH-(445-465)W-TD (465W class) 465 W 23.81% -0.300 20.5 kg +40 W, lighter, +2.0 pp
JAT54S40-475/LR 475 W 23.80% -0.260 19.3 kg +50 W, lighter, +2.0 pp
TWMNH-48HW475 475 W 23.80% -0.280 23.7 kg +50 W, +2.0 pp
CHSM48RN(DG)/F-BH-475 475 W 23.80% -0.290 24.5 kg +50 W, heavier, +2.0 pp
AIKO-A475-MCE54Mw 475 W 23.80% -0.260 21.0 kg +50 W, lighter, +2.0 pp
AIKO-A475-MAH54Mw 475 W 23.80% -0.260 21.5 kg +50 W, lighter, +2.0 pp
SP310RHM6-54L 310 W 15.87% -0.350 21.0 kg -115 W, -5.9 pp, -5 yr warranty
SP350YHM6-54L 350 W 17.92% -0.350 21.0 kg -75 W, -3.8 pp, -5 yr warranty
SP370GHM6-54L 370 W 18.94% -0.350 21.0 kg -55 W, -2.8 pp, -5 yr warranty
SP380GHM6-54L 380 W 19.45% -0.350 21.0 kg -45 W, -2.3 pp, -5 yr warranty
SPV420-TM10-108 420 W 21.54% -0.300 21.5 kg Lighter, -0.2 pp
SPV425-TM10-108 425 W 21.80% -0.300 21.5 kg Lighter
SPV430-TM10-108 430 W 22.05% -0.300 21.5 kg Lighter, +0.3 pp
SPV430-TM10-108BD 430 W 22.01% - 23.5 kg +0.2 pp
SPV435-TM10-108 435 W 22.31% -0.300 21.5 kg +10 W, lighter, +0.5 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +85 W, +3.2 pp

Found 1797 panels of the same or similar size to this one, within ±10 mm. See them here Found 1931 panels of the same or similar size to this one, within ±25 mm. See them here Found 3413 panels of the same or similar size to this one, within ±50 mm. See them here Found 4007 panels of the same or similar size to this one, within ±100 mm. See them here

About the TM10 series

6 answered

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

What is the difference between N-type TOPCon technology in SpolarPV TM10 panels and classic P-type panels?
N-type TOPCon cells offer higher conversion efficiency and a lower annual degradation rate than traditional P-type PERC cells. In practice, this means the TM10 panel loses less power in its first year of operation and in subsequent years, resulting in higher real-world energy yield over the entire 30-year power warranty period.
What is the maximum power output of the SpolarPV TM10 panel and how many panels are needed for a 5 kWp installation?
TM10 series panels reach up to 430 Wp. To build a 5 kWp installation, you need approximately 12 modules. Thanks to higher operating currents resulting from multi-busbar technology, the installation requires less cabling and reduces the load on the inverter at the same power output.
What warranty comes with SpolarPV TM10 panels?
The manufacturer offers a 12-year product warranty and a 30-year power performance warranty. This is close to the standard offered by leading Tier 1 manufacturers, although SpolarPV currently does not hold Tier 1 status, which is worth considering when assessing the long-term financial stability of the warranty provider.
Does the dual glass TM10 version work bifacially and increase energy yield?
Yes, the dual glass variant of the TM10 series enables bifacial operation, capturing reflected light from the rear side of the panel as well. This increases total energy yield, especially over bright surfaces such as gravel or white roofing, without requiring additional mounting area.
Are SpolarPV TM10 panels suitable for residential roofs in terms of appearance?
Yes, an ultra-black version is available for residential customers, featuring a uniform dark frame and backsheet. This option is commonly chosen for pitched roofs of single-family homes, where the visual appearance of the installation matters as much as its energy performance.
Where is SpolarPV manufactured, and is it worth investing in panels from a non-Tier 1 manufacturer?
SpolarPV is a manufacturer based in China that does not currently hold Bloomberg NEF Tier 1 status. This does not indicate inferior technical quality, but investors should pay closer attention to warranty terms, the company's market track record, and service availability, since Tier 1 status is often used as a simplified indicator of manufacturer financial stability.
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