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SP Enerji SP-320M60
SP Enerji Brand review

SP-320M60

320 Wp PERC
ComparePV verdict

Light for its output, weak in heat

Rank 13,054 of 14,005
Compare panels Datasheet PDF
Power (Wp)
320
Typical for its class
Efficiency (%)
19.67
Strong · top 23%
Density (Wp/m²)
196.7
Strong · top 22%
Temp (%/°C)
-0.380
Weak · bottom 22%
Weight (kg)
18.0
Strong · 1.0 kg below median
Warranty (yrs)
25
Typical · median 25 yrs

The SP Enerji Solar Power 300 W - 320 W series consists of monocrystalline modules with 60 cells, designed to maximize energy yield with limited roof or ground space. The use of PERC technology helps to better utilize diffuse radiation, resulting in more stable production on cloudy days - which is important in Polish conditions. Another advantage is the positive power tolerance, which makes the actual performance of the installation more predictable from the very first start-up.

For investors, safety in complex systems is also important - this series supports high system voltage, which facilitates the design of long strings and reduces losses on the DC side. The construction with tempered glass and a solid frame provides the mechanical resistance needed for roofs of single-family homes, office buildings, and small PV farms. The entire range is also complemented by a product warranty, which increases the confidence in the investment and differentiates the series from many budget-friendly alternatives.

Ranking

286 panels in the segment PERC 300-350 W
Metric This panel Median Position in segment Overall rank
Module efficiency 19.67% 19.00% Strong · top 23% 12,559
Power density 196.7 190.0 Strong · top 22% 12,528
Temperature coefficient -0.380 -0.360 Weak · bottom 22% 13,397
Weight per kWp 56.2 60.0 Strong · top 15% 10,518
Performance warranty 25 yrs 25 yrs Typical 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

3 positive · 1 caution
Best for

Residential and commercial.

Not ideal for

Hot climates.

Strengths
56.2 kg per kWp

Top 15% of the PERC 300-350 W segment, against a median of 60.0.

196.7 watts per square metre

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

19.67% module efficiency

Top 23% of the PERC 300-350 W segment, against a median of 19.00%.

Watch-outs
-0.380 %/°C temperature coefficient

Bottom 22% of the PERC 300-350 W segment, against a median of -0.360.

Notes from the database
  • At 19.7% efficiency, this panel is on par with typical PERC 0-400W modules
  • At 196.7 W/m² power density, roof space requirements are typical for PERC 0-400W panels
  • Temperature coefficient of -0.38%/°C is 0.02pp worse than PERC 0-400W median (-0.36%/°C) - higher losses in summer heat
  • Weight of 18.0 kg (2.5 kg below PERC 0-400W median of 20.5 kg) allows easier transport and roof mounting
  • Ranked #12559 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 320 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 19.67 % Strong Segment median 19.00%
Vmpp · Impp 33.00 V · 9.70 A Operating point at max power
Voc · Isc 40.60 V · 10.02 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1640×992×35 mm · 1.63 m² of roof
Weight 18.0 kg Strong Strong · 1.0 kg below median
Cells 60 · PERC Monocrystalline
Coefficient Pmax -0.380 %/°C Weak bottom 22% of its segment
Coefficient Voc · Isc -0.280 · 0.050 %/°C
NOCT 46 °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 85.0 % Equals 266 W guaranteed
Degradation 2.50 → 0.50 % 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
-0.380 %/°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-320M60 320 W 19.67% -0.380 18.0 kg You are here
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +3.6 pp
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +3.6 pp
ZEUS 1.2 FullBlack 280W 280 W 23.31% -0.260 14.3 kg Cooler, +3.6 pp, +5 yr warranty
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +3.5 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +3.5 pp
GKA182M285W 285 W 23.00% - 10.8 kg Lighter, +3.3 pp, +5 yr warranty
GKA182M270W 270 W 23.00% - 10.8 kg -50 W, lighter, +3.3 pp
GKA182M300W 300 W 23.00% - 16.2 kg -20 W, +3.3 pp, +5 yr warranty
GKA210M320W 320 W 23.00% - 16.2 kg Lighter, +3.3 pp, +5 yr warranty
SP-260P60 260 W 16.00% -0.422 18.0 kg -60 W, hotter, -3.7 pp
SP-265P60 265 W 16.30% -0.422 18.0 kg -55 W, hotter, -3.4 pp
SP-270P60 270 W 16.60% -0.422 18.0 kg -50 W, hotter, -3.1 pp
SP-275P60 275 W 16.90% -0.422 18.0 kg -45 W, hotter, -2.8 pp
SP-280P60 280 W 17.21% -0.422 18.0 kg -40 W, hotter, -2.5 pp
SP-285P60 285 W 17.52% -0.422 18.0 kg -35 W, hotter, -2.2 pp
SP-300M60 300 W 18.44% -0.380 18.0 kg -20 W, -1.2 pp
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg Cooler, +2.9 pp, +15 yr warranty

Found 182 panels of the same or similar size to this one, within ±10 mm. See them here Found 218 panels of the same or similar size to this one, within ±25 mm. See them here Found 379 panels of the same or similar size to this one, within ±50 mm. See them here Found 472 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the SP Enerji Solar Power 300–320 W series still available for purchase?
The SP Enerji Solar Power 300–320 W series has been discontinued and is no longer actively distributed. If you need this specific series, check with PV distributors that may still have stock on hand. Otherwise, consider newer PERC mono-crystalline modules with similar specifications that come with a current manufacturer warranty and full after-sales support.
What does PERC technology do in the SP Enerji Solar Power panels, and is it worth the premium?
PERC technology adds a passivation layer on the rear side of each cell, reflecting unabsorbed light back into the silicon and reducing electron recombination losses. The result is higher energy yield — especially under diffuse irradiance. In Poland's climate, with a high share of overcast days, PERC modules generate measurably more kilowatt-hours annually compared to conventional mono-crystalline cells without rear passivation.
What warranty comes with the SP Enerji Solar Power 320 W series?
The manufacturer provides a 10-year product warranty covering material and workmanship defects, plus a 25-year linear power output warranty guaranteeing that modules retain a specified percentage of their rated power over that period. This warranty scope is standard for mid-range modules and distinguishes the series from budget alternatives that typically offer little or no long-term power guarantee.
What does positive power tolerance mean for the SP Enerji Solar Power 320 W, and why does it matter?
Positive power tolerance means each module's actual output at STC meets or exceeds the nameplate rating. You avoid the risk of a 320 W panel shipping from the factory at, say, 312 W. This makes system yield projections more accurate and ensures your array's total installed capacity matches the sum of the modules' rated powers from the very first day of operation.
Do SP Enerji Solar Power 300–320 W panels perform well on overcast days typical of the Polish climate?
Yes. The PERC cells used in this series harvest diffuse and low-angle irradiance more efficiently than standard mono-crystalline cells. On overcast days the panels continue generating power, though at reduced output compared to full irradiance. This is a meaningful advantage in Poland's temperate climate, where a significant share of annual energy production comes from partially cloudy conditions rather than clear-sky days.
Is the SP Enerji Solar Power 300–320 W series suitable for building long strings in a commercial installation?
Yes. The series supports high system voltage, allowing more modules per string without exceeding the inverter's maximum DC input voltage. Longer strings reduce cabling requirements, lower DC-side resistive losses, and simplify cable routing. This is a practical advantage for commercial rooftop systems and small PV farms, where optimizing BoS costs has a direct impact on overall LCOE.
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