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TPL Solar Brand review

TPL125S-48

125 Wp PERC
ComparePV verdict

Warranty pick, modest efficiency

Rank 13,830 of 14,005
Compare panels Datasheet PDF
Power (Wp)
125
Weak · bottom 11%
Efficiency (%)
14.46
Weak · bottom 6%
Density (Wp/m²)
144.6
Weak · bottom 10%
Temp (%/°C)
-0.360
Strong · top 25%
Weight (kg)
8.0
Typical · median 11.3 kg
Warranty (yrs)
30
Strong · top 24%

The TPL Solar TPL S-48 Series of photovoltaic panels introduces a new level of quality in power density, utilizing advanced cell design to maximize yields from limited roof space. This solution is dedicated to investors seeking uncompromising performance while maintaining high resistance to external factors. Thanks to the use of high-density cell technology, these modules minimize energy losses resulting from shading and offer a better temperature coefficient, which is crucial in the Polish climate during hot days. The S-48 series stands out for its increased mechanical strength against snow and wind loads, guaranteeing stable system operation for decades. Exceptional aesthetics and precision of workmanship ensure the panels blend perfectly with modern architecture, eliminating the problem of an unattractive installation appearance. Innovative connection architecture between cells reduces the risk of hot-spots, which directly translates to fire safety and component longevity. By choosing this series, the user receives a product with optimized current flow that outperforms standard solutions in terms of efficiency under low sunlight conditions. It is the ideal choice for demanding commercial and residential projects where every square centimeter of surface and maximum return on investment counts.

Ranking

117 panels in the segment PERC 25-225 W
Metric This panel Median Position in segment Overall rank
Module efficiency 14.46% 16.26% Weak · bottom 6% 13,889
Power density 144.6 161.4 Weak · bottom 10% 13,866
Temperature coefficient -0.360 -0.370 Strong · top 25% 12,345
Weight per kWp 64.0 67.7 Typical 12,948
Performance warranty 30 yrs 25 yrs Strong · top 24% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

2 positive · 2 caution
Best for

Residential and commercial.

Not ideal for

Tight roof space and roofs where every square metre has to count.

Strengths
30 year performance warranty

Top 24% of the PERC 25-225 W segment, against a median of 25 yrs.

-0.360 %/°C temperature coefficient

Top 25% of the PERC 25-225 W segment, against a median of -0.370.

Watch-outs
14.46% module efficiency

Bottom 6% of the PERC 25-225 W segment, against a median of 16.26%. Ranked 13,889th in the whole database.

144.6 watts per square metre

Bottom 10% of the PERC 25-225 W segment, against a median of 161.4.

Notes from the database
  • Module efficiency of 14.5% is 5.0pp below average for PERC 0-400W panels (median: 19.4%)
  • 144.6 W/m² power density is 49.8 W/m² below PERC 0-400W median (194.4 W/m²) - requires larger installation area
  • Temperature coefficient of -0.36%/°C matches the PERC 0-400W median
  • At 8.0 kg, this panel is 12.5 kg lighter than PERC 0-400W median (20.5 kg) - easier handling during installation
  • Ranked #13889 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 125 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 14.46 % Weak Segment median 16.26%
Vmpp · Impp 17.93 V · 5.58 A Operating point at max power
Voc · Isc 29.76 V · 5.60 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 1070×808×35 mm · 0.86 m² of roof
Weight 8.0 kg Typical Typical · median 11.3 kg
Cells 48 · PERC Monocrystalline
Coefficient Pmax -0.360 %/°C Strong top 25% of its segment
Coefficient Voc · Isc -0.360 · 0.060 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Strong top 24% · median 25 yrs
End-of-warranty output 80.7 % Equals 101 W guaranteed
Degradation 2.50 → 0.58 % 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
-0.360 %/°C against a segment median of -0.370
-

Alternatives

All TPL Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
TPL Solar TPL125S-48 125 W 14.46% -0.360 8.0 kg You are here
GKA182M150W 150 W 23.00% - 9.0 kg +25 W, heavier, +8.5 pp
GKA182M160W 160 W 23.00% - 9.0 kg +35 W, heavier, +8.5 pp
GKA182M120W 120 W 23.00% - 6.1 kg Lighter, +8.5 pp
GKA182M135W 135 W 23.00% - 6.1 kg +10 W, lighter, +8.5 pp
GKA182M100W 100 W 23.00% - 6.1 kg -25 W, lighter, +8.5 pp
GKA182M110W 110 W 23.00% - 6.1 kg -15 W, lighter, +8.5 pp
NS-100MH-36 100 W 21.29% -0.290 5.0 kg Cooler, +6.8 pp, -5 yr warranty
NS-100MH-36 100 W 21.29% -0.290 5.0 kg Cooler, +6.8 pp, -5 yr warranty
YH120W-18M 120 W 19.63% -0.350 6.4 kg Cooler, lighter, +5.2 pp
YH100W-12M 100 W 19.63% -0.400 1.9 kg Hotter, lighter, +5.2 pp
TPL115S-48 115 W 13.50% -0.360 8.0 kg -10 W, -1.0 pp
TPL120S-48 120 W 13.88% -0.360 8.0 kg -0.6 pp
TPL130S-48 130 W 15.04% -0.360 8.0 kg +0.6 pp
TPL135S-48 135 W 15.61% -0.360 8.0 kg +10 W, +1.1 pp
CE-180M60 180 W 20.51% -0.500 8.5 kg +55 W, hotter, +6.1 pp
YH200W-20M 200 W 19.80% -0.400 3.7 kg +75 W, +5.3 pp, -5 yr warranty

Found 5 panels of the same or similar size to this one, within ±10 mm. See them here Found 5 panels of the same or similar size to this one, within ±25 mm. See them here Found 7 panels of the same or similar size to this one, within ±50 mm. See them here Found 9 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Are TPL Solar TPL S-48 Series panels still available for purchase?
No, the TPL S-48 Series has been discontinued and is no longer offered by the manufacturer. If you're planning to expand an existing installation built with these panels, contact your supplier about remaining stock or consider a replacement module with similar power rating and PERC cell technology.
What warranty comes with TPL S-48 Series panels?
The manufacturer provides a 12-year product warranty along with a 30-year power performance warranty. This means the panel is expected to retain a specified percentage of its original rated output over three decades, a warranty period comparable to leading brands even though TPL Solar is not a Tier 1 manufacturer.
How does the PERC technology in the TPL S-48 differ from standard monocrystalline panels?
PERC (Passivated Emitter and Rear Cell) cells feature an additional passivation layer on the back of the cell that reflects unused photons back into the silicon structure. This increases energy conversion efficiency and improves the temperature coefficient compared to standard mono cells, resulting in higher yields, especially on hot days.
What is the maximum power output of the TPL S-48 panel and what installations is it suited for?
Panels in the S-48 Series reach a maximum power of 135 Wp, making them a small-format module better suited for small-scale installations, off-grid systems, battery charging, or specialty applications rather than standard large rooftop installations on single-family homes.
Are TPL S-48 panels bifacial?
No, the TPL S-48 Series uses a standard monofacial module design. The panel generates power only from its front side, so no additional yield from reflected light on the rear surface should be factored into system design, unlike with bifacial modules.
Is it worth buying panels from a non-Tier 1 manufacturer like TPL Solar?
TPL Solar is a Pakistan-based manufacturer without Tier 1 classification, meaning a smaller production scale and shorter market track record compared to industry leaders. Before purchasing, especially since the S-48 Series is already discontinued, it's worth verifying warranty service availability and checking installer feedback on their experience with this manufacturer.
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