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TPL Solar Brand review

TPL320P -72

320 Wp Polycrystalline
ComparePV verdict

Warranty pick, needs the roof space

Rank 13,462 of 14,129
Compare panels Datasheet PDF
Power (Wp)
320
Weak · bottom 16%
Efficiency (%)
16.54
Weak · bottom 9%
Density (Wp/m²)
164.9
Weak · bottom 9%
Temp (%/°C)
-0.360
Typical · median -0.350
Weight (kg)
23.0
Weak · 2.0 kg above median
Warranty (yrs)
30
Strong · top 18%

The TPL P-72 series features advanced modules designed to maximize yields in large-scale installations. Thanks to the use of 72 polycrystalline cells, these panels offer an excellent price-to-power ratio, making them an ideal choice for investors building solar farms and large industrial facilities. A key feature distinguishing this series is high resistance to potential-induced degradation (PID), which guarantees stable system operation for decades, even in demanding weather conditions. The module design is based on multi-busbar technology, which minimizes resistive losses and improves current flow. TPL P-72 effectively addresses the profitability challenges of large projects by offering reliability in harsh environmental conditions and high mechanical resistance to snow and wind loads. Unlike standard residential solutions, this series focuses on optimizing BOS system costs, allowing for reduced expenditures on mounting structures and cabling. By choosing these panels, you gain stability of electrical parameters, which directly translates into a faster return on investment. This is a professional tool for the commercial sector, combining proven silicon technology with modern durability standards, outperforming the competition in the industrial strength category.

Ranking

2,697 panels in the 220-420 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 16.54% 20.10% Weak · bottom 9% 13,682
Power density 164.9 200.4 Weak · bottom 9% 13,677
Temperature coefficient -0.360 -0.350 Typical 12,425
Weight per kWp 71.9 56.6 Weak · bottom 10% 13,610
Performance warranty 30 yrs 25 yrs Strong · top 18% 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

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

Strengths
30 year performance warranty

Top 18% of the 220-420 W band, against a median of 25 yrs.

Watch-outs
164.9 watts per square metre

Bottom 9% of the 220-420 W band, against a median of 200.4. Ranked 13,677th in the whole database.

16.54% module efficiency

Bottom 9% of the 220-420 W band, against a median of 20.10%. Ranked 13,682nd in the whole database.

71.9 kg per kWp

Bottom 10% of the 220-420 W band, against a median of 56.6. Ranked 13,610th in the whole database.

Notes from the database
  • Module efficiency of 16.5% is 5.3pp below average for database panels (median: 21.8%)
  • Power density of 164.9 W/m² is 53.2 W/m² below database median (218.1 W/m²) - needs more roof space
  • -0.36%/°C temperature coefficient - 0.06pp worse than database median (-0.30%/°C), expect higher hot weather losses
  • Weight of 23.0 kg (3.5 kg below database median of 26.5 kg) allows easier transport and roof mounting
  • Ranked #13682 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 320 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 16.54 % Weak Segment median 20.10%
Vmpp · Impp 38.89 V · 8.23 A Operating point at max power
Voc · Isc 45.55 V · 8.72 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 · 2.0 kg above median
Cells 72 Polycrystalline
Coefficient Pmax -0.360 %/°C Typical median -0.350 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 18% · median 25 yrs
End-of-warranty output 80.7 % Equals 258 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 -0.350
-

Alternatives

All TPL Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
TPL Solar TPL320P -72 320 W 16.54% -0.360 23.0 kg You are here
LNSK-340M 340 W 20.08% -0.360 21.0 kg +20 W, +3.5 pp, -5 yr warranty
CS3K-330P 330 W 19.90% -0.360 18.5 kg Lighter, +3.4 pp, -5 yr warranty
CS3K-335MB-AG 335 W 19.90% -0.360 22.3 kg +15 W, +3.4 pp
LNSK-335M 335 W 19.78% -0.360 21.0 kg Lighter, +3.2 pp, -5 yr warranty
CS3L-365P 365 W 19.70% -0.360 21.1 kg +45 W, +3.2 pp, -5 yr warranty
CS3K-325P 325 W 19.60% -0.360 18.5 kg Lighter, +3.1 pp, -5 yr warranty
CS3L-360P 360 W 19.50% -0.360 21.1 kg +40 W, +3.0 pp, -5 yr warranty
LNSK-330M 330 W 19.49% -0.360 21.0 kg Lighter, +2.9 pp, -5 yr warranty
TPL300P-72 300 W 15.51% -0.360 23.0 kg -20 W, -1.0 pp
TPL305M-72 305 W 15.78% -0.360 23.0 kg -15 W, -0.8 pp
TPL310M-72 310 W 16.03% -0.360 23.0 kg -10 W, -0.5 pp
TPL315M-72 315 W 16.28% -0.360 23.0 kg -0.3 pp
TPL315P -72 315 W 16.28% -0.360 23.0 kg -0.3 pp
TPL320M-72 320 W 16.54% -0.360 23.0 kg Very close match
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg +155 W, +7.5 pp, +10 yr warranty
SPR-MAX7-470 470 W 23.70% -0.270 21.1 kg +150 W, +7.2 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 series

6 answered

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

How much power does a panel from the TPL P-72 series generate?
TPL P-72 modules reach a maximum power output of up to 340 Wp. Thanks to 72 polycrystalline cells and multi-busbar technology, these panels deliver stable energy yield with a solid price-to-power ratio, which matters most in utility-scale projects where total installed capacity outweighs single-module compactness.
What warranty applies to the TPL P-72 Series panels?
The manufacturer offers a 12-year product warranty and a 30-year linear power output warranty. This means that after three decades the panel should still generate a significant share of its initial nominal power. It's worth checking service terms with a local distributor, since the manufacturer is based in Pakistan and does not hold Tier 1 status.
How does PID resistance in TPL P-72 differ from standard poly panels?
The P-72 series features enhanced potential-induced degradation (PID) resistance, limiting power loss caused by high system voltages in large series-connected arrays. This is a key advantage in solar farms, where module strings operate at high DC voltage, and standard polycrystalline panels without PID protection can degrade faster than the rated performance curve.
Are TPL P-72 panels suitable for large solar farms, or more for residential use?
The P-72 series is designed for utility-scale installations and industrial sites rather than typical single-family rooftops. The construction focuses on BoS cost optimization, reducing spending on mounting structures and cabling across large numbers of modules, which matters far less in small residential systems.
Does PERC technology in TPL P-72 panels improve efficiency compared to regular poly cells?
Yes, the PERC cells used in the P-72 series include an additional rear passivation layer that reflects unused light back into the silicon structure. This increases conversion efficiency compared to standard polycrystalline cells without PERC, improving energy yield especially in low-light conditions such as early morning or late afternoon.
How much mechanical load resistance do TPL P-72 panels have against snow and wind?
The P-72 module construction provides high mechanical load resistance against snow and wind, making the panels suitable for installations in demanding climates. The frame design and multi-busbar technology reduce the risk of microcracks under heavy loads, contributing to stable performance throughout the warranty period.
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