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TPL Solar Brand review

TPL335P-72

335 Wp PERC
ComparePV verdict

Warranty pick, modest efficiency

Rank 13,314 of 14,129
Compare panels Datasheet PDF
Power (Wp)
335
Strong · top 22%
Efficiency (%)
17.20
Weak · bottom 21%
Density (Wp/m²)
172.6
Weak · bottom 21%
Temp (%/°C)
-0.360
Typical · median -0.360
Weight (kg)
23.0
Weak · 4.0 kg above median
Warranty (yrs)
30
Strong · top 16%

The TPL Solar TPL P-72 315W-340W series consists of classic 72-cell polycrystalline modules, designed for stable operation in larger-scale installations. In practice, they are characterized by a positive power tolerance, which makes it easier to maintain predictable yields and reduce the risk of "weak links" within a single string. The use of an IP67-rated junction box and MC4 connectors facilitates quick assembly and increases resistance to environmental conditions - which is important on roofs of warehouses, in windy areas, and in ground-mounted installations.

This series effectively addresses the issue of cost-effectiveness for larger module areas: the 72-cell arrangement promotes the creation of longer strings and organized wiring, and bypass diodes help minimize losses due to partial shading. This makes it a good choice for investors who expect predictable, long-term performance in commercial and industrial projects, without overpaying for technologies they don't need.

Ranking

291 panels in the segment PERC 300-350 W
Metric This panel Median Position in segment Overall rank
Module efficiency 17.20% 19.00% Weak · bottom 21% 13,516
Power density 172.6 190.0 Weak · bottom 21% 13,487
Temperature coefficient -0.360 -0.360 Typical 12,425
Weight per kWp 68.7 60.3 Weak · bottom 23% 13,457
Performance warranty 30 yrs 25 yrs Strong · top 16% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 3 caution
Best for

Commercial.

Not ideal for

Tight roof space, roofs where every square metre has to count and weight-limited structures.

Strengths
30 year performance warranty

Top 16% of the PERC 300-350 W segment, against a median of 25 yrs.

Watch-outs
17.20% module efficiency

Bottom 21% of the PERC 300-350 W segment, against a median of 19.00%.

172.6 watts per square metre

Bottom 21% of the PERC 300-350 W segment, against a median of 190.0.

68.7 kg per kWp

Bottom 23% of the PERC 300-350 W segment, against a median of 60.3.

Notes from the database
  • Efficiency of 17.2% is 2.2pp below the PERC 0-400W median (19.4%)
  • 172.7 W/m² power density is 21.5 W/m² below PERC 0-400W median (194.2 W/m²) - requires larger installation area
  • Temperature coefficient of -0.36%/°C matches the PERC 0-400W median
  • At 23.0 kg (2.5 kg above PERC 0-400W median of 20.5 kg), requires checking roof load capacity
  • #13516 for efficiency, #12425 for temperature performance out of 14129 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 335 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 17.20 % Weak Segment median 19.00%
Vmpp · Impp 39.79 V · 8.42 A Operating point at max power
Voc · Isc 45.85 V · 8.85 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 1956×992×40 mm · 1.94 m² of roof
Weight 23.0 kg Weak Weak · 4.0 kg above median
Cells 72 · PERC Polycrystalline
Coefficient Pmax -0.360 %/°C Typical median -0.360 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 16% · median 25 yrs

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 -0.360
-

Alternatives

All TPL Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
TPL Solar TPL335P-72 335 W 17.20% -0.360 23.0 kg You are here
LNSK-340M 340 W 20.08% -0.360 21.0 kg Lighter, +2.9 pp, -5 yr warranty
CS3K-330P 330 W 19.90% -0.360 18.5 kg Lighter, +2.7 pp, -5 yr warranty
CS3K-335MB-AG 335 W 19.90% -0.360 22.3 kg +2.7 pp
LNSK-335M 335 W 19.78% -0.360 21.0 kg Lighter, +2.6 pp, -5 yr warranty
CS3L-365P 365 W 19.70% -0.360 21.1 kg +30 W, +2.5 pp, -5 yr warranty
CS3K-325P 325 W 19.60% -0.360 18.5 kg Lighter, +2.4 pp, -5 yr warranty
CS3L-360P 360 W 19.50% -0.360 21.1 kg +25 W, +2.3 pp, -5 yr warranty
LNSK-330M 330 W 19.49% -0.360 21.0 kg Lighter, +2.3 pp, -5 yr warranty
TPL300P-72 300 W 15.51% -0.360 23.0 kg -35 W, -1.7 pp
TPL305M-72 305 W 15.78% -0.360 23.0 kg -30 W, -1.4 pp
TPL310M-72 310 W 16.03% -0.360 23.0 kg -25 W, -1.2 pp
TPL315M-72 315 W 16.28% -0.360 23.0 kg -20 W, -0.9 pp
TPL315P -72 315 W 16.28% -0.360 23.0 kg -20 W, -0.9 pp
TPL320M-72 320 W 16.54% -0.360 23.0 kg -15 W, -0.7 pp
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg +140 W, +6.8 pp, +10 yr warranty
SPR-MAX7-470 470 W 23.70% -0.270 21.1 kg +135 W, +6.5 pp, +10 yr warranty

Found 148 panels of the same or similar size to this one, within ±10 mm. See them here Found 241 panels of the same or similar size to this one, within ±25 mm. See them here Found 360 panels of the same or similar size to this one, within ±50 mm. See them here Found 565 panels of the same or similar size to this one, within ±100 mm. See them here

About the TPL P-72 Series 315W-340W series

6 answered

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

Is the TPL Solar P-72 315W-340W series still available for purchase?
No, the manufacturer has discontinued production of this series and it is no longer part of the current lineup. Units may still be found in wholesaler stock or as leftover batches, so it's worth checking current inventory before ordering. For new projects, choosing an actively produced model with similar specifications is recommended.
What warranty comes with the TPL Solar P-72 panels?
The manufacturer provides a 12-year product warranty and a 30-year power performance warranty. This means the module should retain its declared power output percentage throughout that period, following the degradation curve stated in the datasheet. Note that warranty service for a discontinued model may be slower than for currently produced series.
How does PERC technology in the TPL P-72 panels differ from standard polycrystalline cells?
PERC cells feature an additional rear-side passivation layer that reflects unused light back into the cell, increasing its absorption. In practice, this results in higher efficiency and better energy yield compared to older, standard polycrystalline modules without this technology, while keeping the simplicity and cost of a 72-cell layout.
What does positive power tolerance mean for the TPL P-72 315W-340W panels?
Positive power tolerance means the module's actual output never falls below the rated nameplate value, and may even be slightly higher. This gives investors confidence that a system built from these panels will reach its planned total capacity, without the risk of underperformance caused by weaker units within a string.
Are the TPL P-72 panels suitable for large commercial and ground-mounted installations?
Yes, the 72-cell layout and power rating up to 340 Wp were designed for larger installations on industrial roofs, carports, and ground-mount solar farms. The 72-cell configuration supports longer strings and simplified wiring layouts, while the IP67-rated junction box and MC4 connectors ensure durability in demanding outdoor and industrial conditions.
Are the TPL Solar P-72 panels bifacial modules?
No, the P-72 315W-340W series uses standard monofacial PERC cells and does not generate power from its rear side. If additional yield from reflected light is desired, for example over bright ground surfaces or on elevated mounting structures, a dedicated bifacial series from another manufacturer should be considered instead.
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