Skip to main content
TPL Solar Brand review

TPL-350M-120HC

350 Wp PERC
ComparePV verdict

Warranty pick, needs the roof space

Rank 12,804 of 14,005
Compare panels Datasheet PDF
Power (Wp)
350
Weak · bottom 2%
Efficiency (%)
18.91
Weak · bottom 13%
Density (Wp/m²)
189.2
Weak · bottom 13%
Temp (%/°C)
-0.350
Typical · median -0.350
Weight (kg)
20.5
Typical · median 21.4 kg
Warranty (yrs)
30
Strong · top 13%

The TPL Solar TPLM-120HC panel series is an advanced solution based on Half-Cut cell technology, which significantly reduces energy losses resulting from internal resistance. Thanks to this approach, these modules exhibit much higher resistance to partial shading and the negative impact of high temperatures, which translates into stable power production in real weather conditions. The use of Multi-Busbar cells guarantees a shorter current flow path, which minimizes the risk of micro-cracks and increases the overall mechanical durability of the module. This series solves the problem of limited installation space by offering high power density, allowing for lower BOS system costs and a faster return on investment. These panels are primarily dedicated to investors seeking maximum efficiency with a low LCOE factor, in both residential installations and large commercial projects. What distinguishes the TPLM-120HC from the competition is its exceptional performance in low light conditions and rigorous quality control that eliminates the PID degradation effect. The robust frame construction ensures resistance to extreme snow and wind loads, making this series one of the most reliable choices on the Polish photovoltaic market.

Ranking

579 panels in the segment PERC 350-400 W
Metric This panel Median Position in segment Overall rank
Module efficiency 18.91% 19.90% Weak · bottom 13% 12,994
Power density 189.2 199.0 Weak · bottom 13% 12,974
Temperature coefficient -0.350 -0.350 Typical 10,419
Weight per kWp 58.6 55.8 Typical 11,797
Performance warranty 30 yrs 25 yrs Strong · top 13% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 2 caution
Best for

Owners who value a long output guarantee.

Not ideal for

Roofs where every square metre has to count and tight roof space.

Strengths
30 year performance warranty

Top 13% of the PERC 350-400 W segment, against a median of 25 yrs.

Watch-outs
189.2 watts per square metre

Bottom 13% of the PERC 350-400 W segment, against a median of 199.0.

18.91% module efficiency

Bottom 13% of the PERC 350-400 W segment, against a median of 19.90%.

Notes from the database
  • At 18.9% efficiency, this panel is 0.5pp below the PERC 0-400W median of 19.4%
  • At 189.2 W/m², this panel generates 5.2 W/m² less per unit area than PERC 0-400W median (194.4 W/m²)
  • Temperature coefficient of -0.35%/°C matches the PERC 0-400W median
  • Ranked #12994 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 350 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 18.91 % Weak Segment median 19.90%
Vmpp · Impp 33.30 V · 10.52 A Operating point at max power
Voc · Isc 40.00 V · 11.28 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1765×1048×35 mm · 1.85 m² of roof
Weight 20.5 kg Typical Typical · median 21.4 kg
Cells 120 · PERC Monocrystalline
Coefficient Pmax -0.350 %/°C Typical median -0.350 of its segment
Coefficient Voc · Isc -0.270 · 0.050 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Strong top 13% · median 25 yrs
End-of-warranty output 80.7 % Equals 282 W guaranteed
Degradation 2.50 % First year

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
-0.350 %/°C against a segment median of -0.350
-

Alternatives

All TPL Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
TPL Solar TPL-350M-120HC 350 W 18.91% -0.350 20.5 kg You are here
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +4.4 pp
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +4.4 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +4.2 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +4.2 pp
GKA182M300W 300 W 23.00% - 16.2 kg -50 W, lighter, +4.1 pp
GKA210M320W 320 W 23.00% - 16.2 kg -30 W, lighter, +4.1 pp
GKA210M340W 340 W 23.00% - 16.2 kg -10 W, lighter, +4.1 pp
GKA210M360W 360 W 23.00% - 16.2 kg +10 W, lighter, +4.1 pp
GKA210M380W (1/4*4*38) 380 W 23.00% - 17.1 kg +30 W, lighter, +4.1 pp
GKA210M400W (1/2*4*20) 400 W 23.00% - 18.0 kg +50 W, lighter, +4.1 pp
TPL-355M-120HC 355 W 19.20% -0.350 20.5 kg +0.3 pp
TPL-360M-120HC 360 W 19.52% -0.350 20.5 kg +10 W, +0.6 pp
TPL-365M-120HC 365 W 19.73% -0.350 20.5 kg +15 W, +0.8 pp
TPL-370M-120HC 370 W 20.02% -0.350 20.5 kg +20 W, +1.1 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +160 W, cooler, +6.1 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +145 W, cooler, +5.9 pp

Found 233 panels of the same or similar size to this one, within ±10 mm. See them here Found 287 panels of the same or similar size to this one, within ±25 mm. See them here Found 407 panels of the same or similar size to this one, within ±50 mm. See them here Found 4204 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the maximum power output of TPL Solar TPLM-120HC panels, and is it enough for a typical single-family home?
Panels in the TPLM-120HC series reach a maximum power output of 370 Wp. This is a typical value for half-cut cell modules in this class and works well both for residential installations and larger commercial projects. Thanks to high power density, you can achieve greater system output on limited roof space, which lowers overall BoS costs.
How does Half-Cut technology in the TPLM-120HC differ from standard PERC cells?
The TPLM-120HC combines PERC cell technology with half-cut cell design and a Multi-Busbar system. Splitting cells in half reduces resistive losses and increases resistance to partial shading, such as from a chimney or antenna. Multi-busbar connections shorten the current path, lowering the risk of microcracks and improving mechanical durability compared to classic full-cell modules.
What warranty applies to TPL Solar TPLM-120HC panels?
The manufacturer offers a 12-year product warranty and a 30-year power output warranty. This means protection against factory defects for over a decade, plus assurance of gradual, controlled power degradation over three decades of use, which matters when calculating the LCOE and payback period of a solar installation.
Are TPLM-120HC panels bifacial, generating power from both sides?
No, the TPLM-120HC series consists of monofacial panels, not bifacial ones. This means they generate energy only from the front side of the module. This is a standard, proven solution for most roof-mounted installations, where the rear side has no access to reflected light, so the lack of bifacial capability is not a limitation for a typical residential setup.
Who manufactures TPL Solar panels, and is it a Tier 1 supplier?
TPL Solar is headquartered in Pakistan and is not listed as a Tier 1 manufacturer under the Bloomberg New Energy Finance classification. This doesn't necessarily mean lower technical quality, but it does indicate a smaller production scale or shorter market track record compared to industry giants. This is worth factoring in when assessing warranty support and supply stability in Poland.
Do TPLM-120HC panels perform well in low light and high temperatures?
Yes, thanks to Half-Cut and Multi-Busbar technology, TPLM-120HC modules show improved performance under low irradiance, such as early morning, evening, or cloudy days, compared to standard full-cell panels. The design also limits the negative impact of high temperatures on power output, resulting in more stable energy production during Polish summer conditions.
Add to compare