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SP Enerji Brand review

SP-335P72

335 Wp PERC
ComparePV verdict

Middle of its segment, weak in heat

Rank 13,370 of 14,005
Compare panels Datasheet PDF
Power (Wp)
335
Strong · top 22%
Efficiency (%)
17.26
Weak · bottom 22%
Density (Wp/m²)
172.6
Weak · bottom 22%
Temp (%/°C)
-0.422
Weak · bottom 4%
Weight (kg)
23.0
Weak · 4.0 kg above median
Warranty (yrs)
25
Typical · median 25 yrs

SP Enerji SP Poly 72-cell photovoltaic panels provide a solid foundation for large commercial projects and solar farms, where the combination of efficiency and investment cost optimization is key. The use of polycrystalline technology in a 72-cell format allows for high module operation stability even in variable weather conditions. The design based on durable tempered glass and a reinforced frame guarantees increased resistance to snow loads and wind pressure, which directly translates into long-term reliability of the installation. Unlike smaller modules, this series significantly reduces expenditures on cabling and mounting systems, offering a reduced levelized cost of energy (LCOE). This solves the problem of high initial outlays when building professional PV power plants. Thanks to a precise cell surface texturing process, these modules effectively absorb diffuse light, which ensures stable energy yields even on cloudy days. This solution is primarily dedicated to investors building large-scale solar farms and to enterprises with large roof areas. This series stands out from the competition through an excellent price-to-power ratio, representing a sound choice wherever the priority is a quick return on investment and the technical reliability of components.

Ranking

286 panels in the segment PERC 300-350 W
Metric This panel Median Position in segment Overall rank
Module efficiency 17.26% 19.00% Weak · bottom 22% 13,388
Power density 172.6 190.0 Weak · bottom 22% 13,376
Temperature coefficient -0.422 -0.360 Weak · bottom 4% 13,836
Weight per kWp 68.7 60.0 Weak · bottom 23% 13,339
Performance warranty 25 yrs 25 yrs Typical 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Not ideal for

Hot climates, roofs where every square metre has to count and tight roof space.

Watch-outs
-0.422 %/°C temperature coefficient

Bottom 4% of the PERC 300-350 W segment, against a median of -0.360. Ranked 13,836th in the whole database.

172.6 watts per square metre

Bottom 22% of the PERC 300-350 W segment, against a median of 190.0.

17.26% module efficiency

Bottom 22% of the PERC 300-350 W segment, against a median of 19.00%.

Notes from the database
  • Module efficiency of 17.3% is 2.2pp below average for PERC 0-400W panels (median: 19.4%)
  • 172.7 W/m² power density is 21.8 W/m² below PERC 0-400W median (194.4 W/m²) - requires larger installation area
  • Temperature coefficient of -0.42%/°C is 0.06pp worse than PERC 0-400W median (-0.36%/°C) - higher losses in summer heat
  • At 23.0 kg, this panel is 2.5 kg heavier than the PERC 0-400W median (20.5 kg) - more demanding for installation crews
  • #13388 for efficiency, #13836 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 335 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 17.26 % Weak Segment median 19.00%
Vmpp · Impp 37.80 V · 8.88 A Operating point at max power
Voc · Isc 46.05 V · 9.30 A Sizes the string length
Max system voltage 1500 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 -0.422 %/°C Weak bottom 4% of its segment
Coefficient Voc · Isc -0.333 · 0.055 %/°C
NOCT 44 °C At 800 W/m², 20 °C ambient
Product warranty 10 years Hardware defects only
Performance warranty 25 years Typical median 25 yrs · median 25 yrs
End-of-warranty output 80.7 % Equals 259 W guaranteed
Degradation 2.50 → 0.70 % 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
-0.422 %/°C against a segment median of -0.360
-

Alternatives

All SP Enerji panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
SP Enerji SP-335P72 335 W 17.26% -0.422 23.0 kg You are here
LNSK-340M 340 W 20.08% -0.360 21.0 kg Cooler, lighter, +2.8 pp
CS3K-330P 330 W 19.90% -0.360 18.5 kg Cooler, lighter, +2.6 pp
CS3K-335MB-AG 335 W 19.90% -0.360 22.3 kg Cooler, +2.6 pp, +5 yr warranty
LNSK-335M 335 W 19.78% -0.360 21.0 kg Cooler, lighter, +2.5 pp
CS3L-365P 365 W 19.70% -0.360 21.1 kg +30 W, cooler, +2.4 pp
CS3K-325P 325 W 19.60% -0.360 18.5 kg Cooler, lighter, +2.3 pp
CS3L-360P 360 W 19.50% -0.360 21.1 kg +25 W, cooler, +2.2 pp
LNSK-330M 330 W 19.49% -0.360 21.0 kg Cooler, lighter, +2.2 pp
SP-315P72 315 W 16.23% -0.422 23.0 kg -20 W, -1.0 pp
SP-320P72 320 W 16.50% -0.422 23.0 kg -15 W, -0.8 pp
SP-325P72 325 W 16.75% -0.422 23.0 kg -10 W, -0.5 pp
SP-330P72 330 W 17.01% -0.422 23.0 kg -0.2 pp
SP-360M72 360 W 18.55% -0.380 23.0 kg +25 W, cooler, +1.3 pp
SP-365M72 365 W 18.81% -0.380 23.0 kg +30 W, cooler, +1.5 pp
SP-370M72 370 W 19.07% -0.380 23.0 kg +35 W, cooler, +1.8 pp
SP-375M72 375 W 19.33% -0.380 23.0 kg +40 W, cooler, +2.1 pp
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg Cooler, +6.7 pp, +15 yr warranty

Found 144 panels of the same or similar size to this one, within ±10 mm. See them here Found 232 panels of the same or similar size to this one, within ±25 mm. See them here Found 351 panels of the same or similar size to this one, within ±50 mm. See them here Found 550 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty does the SP Enerji SP Poly 72-cell series come with?
SP Enerji provides a 10-year product warranty covering manufacturing defects and material faults, along with a 25-year linear power output warranty ensuring the module retains at least 80% of its rated efficiency over that period. Both warranties meet commercial-segment standards and form a reliable basis for long-term return-on-investment calculations in utility-scale PV projects.
Is the SP Poly 72-cell series a good fit for large-scale solar farm construction?
Yes, this series was specifically designed for utility-scale installations. The 72-cell format delivers up to 335 Wp per module, which directly reduces the number of panels, cable runs, and mounting hardware required per MWp. Fewer components per installed kilowatt-peak translates into lower BoS costs and a better LCOE compared to builds based on smaller 60-cell modules.
What does PERC technology mean in the SP Poly 72-cell panels and why does it matter?
PERC stands for Passivated Emitter and Rear Cell. A passivation layer is applied to the rear surface of the polycrystalline cell, reflecting photons that passed through without being absorbed back for a second conversion attempt. In practice, this yields 3–5% higher energy output compared to standard poly cells without rear passivation, while still maintaining the favorable price-to-power ratio typical of polycrystalline modules.
How do SP Poly 72-cell panels perform on overcast days typical of the Polish climate?
Thanks to precision cell surface texturing and PERC technology, these modules efficiently absorb diffuse irradiance, not only direct sunlight. In Poland, diffuse radiation accounts for a substantial share of annual energy yield, so this characteristic results in stable power generation even under heavy cloud cover. The reinforced aluminum frame and tempered glass also provide reliable protection against snow load and wind pressure.
Why does the SP Poly 72-cell series use 72 cells instead of the standard 60, and what does that mean for installers?
The 72-cell format is engineered for commercial and industrial-scale installations. Arranging cells in a 6×12 configuration raises individual module power up to 335 Wp. For investors building solar farms or covering large warehouse rooftops, fewer modules per kWp means tangible savings on BoS components, wiring, and installation labor, which directly lowers the overall system cost.
Where is SP Enerji headquartered and do SP Poly 72-cell modules carry recognized certifications?
SP Enerji is a Turkish PV module manufacturer. Turkey is one of the fastest-growing solar production hubs in the EMEA region. Modules intended for European markets are typically tested and certified to IEC 61215 and IEC 61730, confirming both electrical safety and the mechanical durability of the construction required for professional solar farm design.
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