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SP Enerji Brand review

SP-390M72

390 Wp PERC Bifacial
ComparePV verdict

Middle of its segment, weak in heat

Rank 12,643 of 14,005
Compare panels Datasheet PDF
Power (Wp)
390
Typical for its class
Efficiency (%)
19.67
Typical · median 19.90%
Density (Wp/m²)
196.7
Typical · median 199.0
Temp (%/°C)
-0.370
Weak · bottom 16%
Weight (kg)
23.5
Typical · median 21.4 kg
Warranty (yrs)
25
Typical · median 25 yrs

The SP Enerji D6L_K3A series are bifacial modules designed to meet the real challenges of Polish installations - where stable production, even under reflected light from bright roofs, gravel, or snow, is crucial. The use of a bifacial design allows for better utilization of diffuse radiation, which translates into higher yields in more challenging solar conditions.

Compared to the competition, it stands out due to its enhanced mechanical durability, which allows the modules to withstand wind and snow loads more effectively, as well as its optimized PID resistance - which is important in installations operating at high voltage and in humid environments. In addition, the manufacturer emphasizes EL quality control, which reduces the risk of microcracks and power drops over the long term.

This is a good choice for PV farms, carports, and industrial roofs, where predictable performance, durability, and higher yields are the priority, without having to constantly chase specific parameters from tables.

Ranking

579 panels in the segment PERC 350-400 W
Metric This panel Median Position in segment Overall rank
Module efficiency 19.67% 19.90% Typical 12,559
Power density 196.7 199.0 Typical 12,537
Temperature coefficient -0.370 -0.350 Weak · bottom 16% 13,081
Weight per kWp 60.3 55.8 Typical 12,413
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 · 1 caution
Best for

Commercial.

Not ideal for

Hot climates.

Watch-outs
-0.370 %/°C temperature coefficient

Bottom 16% of the PERC 350-400 W segment, against a median of -0.350.

Notes from the database
  • At 19.7% efficiency, this panel is on par with typical PERC 0-400W modules
  • Power density of 196.7 W/m² matches the PERC 0-400W median
  • At -0.37%/°C, hot weather performance is typical for PERC 0-400W panels
  • At 23.5 kg, this panel is 3.0 kg heavier than the PERC 0-400W median (20.5 kg) - more demanding for installation crews
  • #12559 for efficiency, #13081 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 390 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 19.67 % Typical Segment median 19.90%
Vmpp · Impp 40.75 V · 9.59 A Operating point at max power
Voc · Isc 47.88 V · 9.98 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1979×1002×40 mm · 1.98 m² of roof
Weight 23.5 kg Typical Typical · median 21.4 kg
Cells 72 · PERC Monocrystalline
Coefficient Pmax -0.370 %/°C Weak bottom 16% of its segment
Coefficient Voc · Isc -0.280 · 0.048 %/°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 80.0 % Equals 288 W guaranteed
Degradation 3.00 → 0.80 % 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
-0.370 %/°C against a segment median of -0.350
-

Alternatives

All SP Enerji panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
SP Enerji SP-390M72 390 W 19.67% -0.370 23.5 kg You are here
LX-440M/182-108+GG 440 W 23.07% -0.240 23.6 kg +50 W, cooler, +3.4 pp
GKA210M340W 340 W 23.00% - 16.2 kg -50 W, lighter, +3.3 pp
GKA210M360W 360 W 23.00% - 16.2 kg Lighter, +3.3 pp, +5 yr warranty
GKA210M380W (1/4*4*38) 380 W 23.00% - 17.1 kg Lighter, +3.3 pp, +5 yr warranty
GKA210M400W (1/2*4*20) 400 W 23.00% - 18.0 kg Lighter, +3.3 pp, +5 yr warranty
GKA210M400W (1/4*4*40) 400 W 23.00% - 18.0 kg Lighter, +3.3 pp, +5 yr warranty
GKA210M380W (1/2*4*19) 380 W 23.00% - 17.1 kg Lighter, +3.3 pp, +5 yr warranty
JT440SYK(B) 440 W 22.90% -0.240 23.0 kg +50 W, cooler, +3.2 pp
SP-385M72 385 W 19.42% -0.370 23.5 kg -0.2 pp
SP-395M72 395 W 19.92% -0.370 23.5 kg +0.2 pp
SP-400M72 400 W 20.17% -0.370 23.5 kg +10 W, +0.5 pp
SP-405M72 405 W 20.42% -0.370 23.5 kg +15 W, +0.8 pp
SP-410M72 410 W 20.67% -0.370 23.5 kg +20 W, +1.0 pp
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg Cooler, +4.3 pp, +15 yr warranty
SPR-MAX7-470 470 W 23.70% -0.270 21.1 kg Cooler, +4.0 pp, +15 yr warranty
SPR-MAX7-465 465 W 23.50% -0.270 21.1 kg Cooler, +3.8 pp, +15 yr warranty

Found 86 panels of the same or similar size to this one, within ±10 mm. See them here Found 304 panels of the same or similar size to this one, within ±25 mm. See them here Found 439 panels of the same or similar size to this one, within ±50 mm. See them here Found 566 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the SP Enerji D6L_K3A series still available for purchase?
The D6L_K3A series has been discontinued and is no longer offered as a new product. If you are looking for bifacial PERC modules with similar specifications, ask your distributor about current alternatives in the SP Enerji portfolio or from other manufacturers. For existing installations, the product and linear power warranties remain valid under the terms issued at the time of purchase.
What warranty comes with SP Enerji D6L_K3A modules?
The manufacturer provided a 10-year product warranty covering material and workmanship defects, along with a 25-year linear power warranty. This means the module should maintain output above the degradation threshold specified in the warranty document for a full quarter century. This is a standard level of protection for commercial-grade PV modules.
Does the bifacial technology in the D6L_K3A series actually increase energy yield?
Yes, bifacial modules capture irradiance from both the front and rear sides of the panel. The gain is most pronounced over high-albedo surfaces such as gravel, white roofing membrane, or snow. In typical ground-mount and carport installations, rear-side contribution typically adds 5 to 15 percent of additional yield depending on ground albedo and tilt angle.
What is the peak power of the SP Enerji D6L_K3A and which installations is it suited for?
The module delivers a maximum power output of 410 Wp under STC conditions. This rating suits prosumer installations on industrial rooftops as well as commercial PV farms and carports. When designing the system, verify the inverter MPPT voltage range, as bifacial PERC modules can produce short-term power surges when rear irradiance from reflective surfaces is added.
How does the D6L_K3A handle snow loads and wind pressure in Polish climate conditions?
SP Enerji emphasized the enhanced mechanical strength of the D6L_K3A series. Bifacial modules in this class are typically certified for snow loads up to 5400 Pa and wind loads up to 2400 Pa, which meets requirements for most locations in Poland. Always confirm the values in the datasheet and consult your installer, especially in high-snowfall zones.
Are SP Enerji D6L_K3A modules resistant to Potential Induced Degradation (PID)?
The D6L_K3A series was designed with optimized PID resistance, which is important for systems operating at high system voltage and in high-humidity environments common in Poland. PID resistance reduces the risk of irreversible power loss caused by leakage current through the cell structure, resulting in more predictable system performance over the full operational lifetime.
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