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Solar N Plus SP-M10/108HG400
Solar N Plus Brand review

SP-M10/108HG400

400 Wp N-type Bifacial 70%
ComparePV verdict

Middle of its segment, heavy for its output

Rank 11,339 of 14,005
Compare panels Datasheet PDF
Power (Wp)
400
Weak · bottom 1%
Efficiency (%)
20.50
Weak · bottom 6%
Density (Wp/m²)
204.8
Weak · bottom 6%
Temp (%/°C)
-0.350
Weak · bottom 4%
Weight (kg)
24.1
Weak · 2.1 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The Solar N Plus CYGNUS All-black Bifacial solar panel series represents a breakthrough combination of uncompromising aesthetics and the highest energy efficiency. The use of N-type TOPCon cell technology allows for significantly higher efficiency while simultaneously reducing light-induced degradation. What sets this line apart from the competition is the unique design of the full-black bifacial module, which debunks the myth that bifacial panels cannot look elegant on the roof of a single-family home. Thanks to the ability to absorb radiation reflected from the ground, the user gains additional energy yield without sacrificing the deep, uniform black of the entire installation. This solves the problem for investors seeking maximum savings who previously had to choose between the performance of bifacial modules and modern design. High resistance to harsh weather conditions and excellent performance in low-light conditions make the CYGNUS series an ideal choice for the most demanding residential projects. It is an investment in long-term power parameter stability, which clearly outperforms standard market solutions in terms of durability and the rate of return on invested capital.

Ranking

321 panels in the segment N-type 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.50% 21.91% Weak · bottom 6% 11,308
Power density 204.8 218.3 Weak · bottom 6% 11,370
Temperature coefficient -0.350 -0.290 Weak · bottom 4% 10,419
Weight per kWp 60.2 51.2 Weak · bottom 2% 12,409
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Residential.

Not ideal for

Weight-limited structures, hot climates and roofs where every square metre has to count.

Watch-outs
60.2 kg per kWp

Bottom 2% of the N-type 400-450 W segment, against a median of 51.2. Ranked 12,409th in the whole database.

-0.350 %/°C temperature coefficient

Bottom 4% of the N-type 400-450 W segment, against a median of -0.290. Ranked 10,419th in the whole database.

204.8 watts per square metre

Bottom 6% of the N-type 400-450 W segment, against a median of 218.3. Ranked 11,370th in the whole database.

Notes from the database
  • Efficiency of 20.5% is 1.4pp below the N-type 400-450W median (21.9%)
  • Power density of 204.8 W/m² is 13.5 W/m² below N-type 400-450W median (218.3 W/m²) - needs more roof space
  • -0.35%/°C temperature coefficient - 0.06pp worse than N-type 400-450W median (-0.29%/°C), expect higher hot weather losses
  • At 24.1 kg, this panel is 2.1 kg heavier than the N-type 400-450W median (22.0 kg) - more demanding for installation crews
  • 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces

Specifications

Open datasheet PDF
Nominal power (Pmax) 400 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.50 % Weak Segment median 21.91%
Vmpp · Impp 30.80 V · 12.99 A Operating point at max power
Voc · Isc 36.80 V · 13.85 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×30 mm · 1.95 m² of roof
Weight 24.1 kg Weak Weak · 2.1 kg above median
Cells 108 · N-type Monocrystalline
Bifaciality 70 % Rear output as a share of front
Coefficient Pmax -0.350 %/°C Weak bottom 4% of its segment
Coefficient Voc · Isc -0.280 · 0.050 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 85.0 % Equals 340 W guaranteed
Degradation 2.00 → 0.45 % 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
-
With bifacial gain
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.350 %/°C against a segment median of -0.290
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Solar N Plus SP-M10/108HG400 400 W 20.50% -0.350 24.1 kg You are here
LX-440M/182-108+GG 440 W 23.07% -0.240 23.6 kg +40 W, cooler, +2.6 pp
JST-EDMH-(445-465)W-TD (450W class) 450 W 23.05% -0.300 20.5 kg +50 W, cooler, +2.6 pp
QNN182-HG450-54 450 W 23.04% -0.290 24.0 kg +50 W, cooler, +2.5 pp
HY440-N108BDD 450 W 23.04% -0.300 23.5 kg +50 W, cooler, +2.5 pp
NLBK-27-450 450 W 23.04% -0.300 22.9 kg +50 W, cooler, +2.5 pp
RS41-450NBG-E3 450 W 23.04% -0.290 24.5 kg +50 W, cooler, +2.5 pp
SP-M10/108HG-395 395 W 20.20% -0.350 24.1 kg -0.3 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +110 W, cooler, +4.5 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +95 W, cooler, +4.3 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +105 W, cooler, +4.2 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +90 W, cooler, +4.0 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +100 W, cooler, +4.0 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +100 W, cooler, +4.0 pp

Found 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1914 panels of the same or similar size to this one, within ±25 mm. See them here Found 3392 panels of the same or similar size to this one, within ±50 mm. See them here Found 3970 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the Solar N Plus CYGNUS All-black Bifacial series still available for purchase?
The CYGNUS All-black Bifacial series has been discontinued and is no longer in active production. Some distributors may still carry remaining stock, but consistent availability should not be expected. If you are looking for similar specifications — N-type TOPCon technology, full-black aesthetics, and a bifacial module — ask your supplier about a current equivalent from Solar N Plus or another manufacturer.
What warranty does the Solar N Plus CYGNUS All-black Bifacial panel carry?
The manufacturer provides a 15-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. This guarantees the panel retains a specified percentage of its rated power for three decades. The 30-year power warranty places the CYGNUS series above the typical market standard, which is usually 25 years even for N-type TOPCon modules.
What is N-type TOPCon technology and why does it matter for a residential PV system?
N-type TOPCon is a solar cell built on N-type silicon wafers with an additional passivating contact layer that reduces charge carrier recombination losses. In practice, this means higher efficiency than conventional PERC cells, near-zero susceptibility to light-induced degradation (LID), and better performance at elevated temperatures. For a prosumer installation, this translates to a higher annual energy yield and a slower power degradation rate over the system lifetime.
How does an all-black bifacial module actually work — does the rear side of the CYGNUS panel generate power?
Yes. A bifacial module has active cells on both sides of the glass. The rear side absorbs albedo light reflected from the surface below — such as light-colored gravel, a white roofing membrane, or snow. In the CYGNUS series the rear surface maintains the full-black aesthetic, which slightly reduces bifacial gain compared to a white backsheet, but does not eliminate it. In typical rooftop installations, the bifacial gain ranges from a few to over ten percent.
Do the CYGNUS All-black 415 Wp panels perform well in winter and under overcast conditions?
N-type TOPCon technology has a more favorable temperature coefficient than P-type PERC modules — it loses less power on hot days and maintains more stable output on cold, overcast days. Under low-irradiance conditions typical of central European winters, N-type cells generate proportionally more energy than older technologies, resulting in a higher annual yield in a temperate climate.
Is the 415 Wp CYGNUS All-black Bifacial panel compatible with standard inverters and rooftop mounting systems?
The 415 Wp CYGNUS module falls within the input range supported by the vast majority of string inverters with MPPT inputs, both single-phase (3–6 kW) and three-phase. The module dimensions follow the standard half-cut format, making it compatible with conventional aluminum rail systems and clamps used in prosumer installations. We recommend confirming the string voltage configuration with a certified installer before purchase.
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