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Solar N Plus Brand review

AP1-345W

345 Wp N-type Bifacial 80%
ComparePV verdict

Middle of its segment, heavy for its output

Rank 13,657 of 14,005
Compare panels Datasheet PDF
Power (Wp)
345
Weak · bottom 6%
Efficiency (%)
20.45
Weak · bottom 19%
Density (Wp/m²)
204.5
Weak · bottom 19%
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
23.0
Weak · 1.0 kg above median
Warranty (yrs)
-
Not published

The Solar N Plus AP1 series are modules designed for stable energy production even under less-than-ideal conditions - on cloudy days, with partial shading, and in installations where long-term degradation resistance is crucial. The use of N-type monocrystalline cells in TOPCon technology helps to minimize typical losses seen in older P-type constructions, making long-term performance more predictable. Another key feature is the bifacial design, which allows for the utilization of reflected light from the ground - particularly in ground-mounted installations, on bright roofs, or above membranes.

AP1 focuses on practical reliability: improved performance in low-light conditions supports self-consumption in winter and during morning hours, while increased resistance to microcracks and mounting stresses makes it easier to operate in real-world conditions. This makes it a good choice for homes, businesses, and small farms that want modern technology without compromising on quality.

Ranking

352 panels in the segment N-type 245-445 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.45% 21.60% Weak · bottom 19% 11,545
Power density 204.5 215.5 Weak · bottom 19% 11,521
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 66.7 52.4 Weak · bottom 8% 13,180
Performance warranty - 30 yrs Not published 13,880
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Residential and commercial.

Not ideal for

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

Watch-outs
66.7 kg per kWp

Bottom 8% of the N-type 245-445 W segment, against a median of 52.4. Ranked 13,180th in the whole database.

20.45% module efficiency

Bottom 19% of the N-type 245-445 W segment, against a median of 21.60%.

204.5 watts per square metre

Bottom 19% of the N-type 245-445 W segment, against a median of 215.5.

Notes from the database
  • At 20.4% efficiency, this panel is 1.0pp above typical N-type 0-400W modules (median: 19.5%)
  • At 204.5 W/m² power density, this panel generates 9.6 W/m² more per unit area than N-type 0-400W median (194.9 W/m²)
  • Temperature coefficient of -0.29%/°C vs median -0.32%/°C means ~1% less power loss at 65°C
  • At 23.0 kg, weight matches the N-type 0-400W median
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces

Specifications

Open datasheet PDF
Nominal power (Pmax) 345 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.45 % Weak Segment median 21.60%
Vmpp · Impp 35.30 V · 9.78 A Operating point at max power
Voc · Isc 42.20 V · 10.37 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1684×1002×30 mm · 1.69 m² of roof
Weight 23.0 kg Weak Weak · 1.0 kg above median
Cells 120 · N-type Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient

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
-0.290 %/°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 AP1-345W 345 W 20.45% -0.290 23.0 kg You are here
NS-300MH-72 300 W 23.32% -0.290 12.5 kg -45 W, lighter, +2.9 pp
NS-300MH-72 300 W 23.32% -0.290 12.5 kg -45 W, lighter, +2.9 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg -15 W, lighter, +2.7 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg -15 W, lighter, +2.7 pp
GKA182M300W 300 W 23.00% - 16.2 kg -45 W, lighter, +2.6 pp
GKA210M320W 320 W 23.00% - 16.2 kg -25 W, lighter, +2.6 pp
GKA210M340W 340 W 23.00% - 16.2 kg Lighter, +2.6 pp
GKA210M360W 360 W 23.00% - 16.2 kg +15 W, lighter, +2.6 pp
GKA210M380W (1/4*4*38) 380 W 23.00% - 17.1 kg +35 W, lighter, +2.6 pp
GKA210M380W (1/2*4*19) 380 W 23.00% - 17.1 kg +35 W, lighter, +2.6 pp
JT440SYK(B) 440 W 22.90% -0.240 23.0 kg +95 W, cooler, +2.4 pp
JT435SYk(B) 435 W 22.70% -0.240 23.0 kg +90 W, cooler, +2.2 pp
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg +55 W, lighter, +2.2 pp
JT430SYk(B) 430 W 22.40% -0.240 23.0 kg +85 W, cooler, +1.9 pp
LEPV 400 400 W 22.31% -0.290 20.0 kg +55 W, lighter, +1.9 pp
NS-360MH-60 360 W 22.12% -0.290 17.0 kg +15 W, lighter, +1.7 pp

Found 108 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 455 panels of the same or similar size to this one, within ±50 mm. See them here Found 799 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 AP1 series still available – can I buy it?
The AP1 series has been discontinued and is no longer actively offered by the manufacturer. Some distributors may still have remaining stock, but availability is limited and uncertain. Before purchasing, check current inventory with your supplier or consider newer Solar N Plus series that provide full warranty and service support.
What does TOPCon technology in the AP1 panels offer compared to older PERC modules?
The N-type TOPCon cells used in the AP1 feature lower annual degradation – typically below 1% per year after year one – and significantly reduced LID (Light-Induced Degradation), which is common in P-type cells. In practice, an AP1 module loses less power over years of operation than a PERC module with the same nominal 345 Wp rating, making the total energy yield over the system's lifetime more predictable.
Do the AP1 panels perform well in winter and on cloudy days?
Yes. N-type TOPCon cells have a better temperature coefficient and higher efficiency at low irradiance than typical P-type modules. The AP1 performs better during morning and evening hours and under overcast conditions, supporting self-consumption in winter months. Keep in mind that 345 Wp is the rated power under STC conditions – real-world output under weaker irradiance is proportionally lower.
What are the real benefits of the bifacial design in the AP1 panels?
The bifacial AP1 collects irradiance from both the front and rear surface, capturing light reflected off the ground or roof surface below. The additional bifacial gain typically ranges from 5–15%, depending on the albedo of the surface beneath the module. The effect is most pronounced in ground-mounted systems, on bright white-membrane rooftops, or over concrete. On a typical sloped roof with dark tiles, the production increase will be minimal.
Is Solar N Plus a Tier 1 manufacturer, and does it matter when buying AP1 panels?
Solar N Plus is not listed among Tier 1 manufacturers by Bloomberg NEF. For residential and small commercial installations this rarely has a decisive impact – the actual technical specifications and warranty terms matter more. However, it is worth considering if you plan to use external financing, as some banks and insurers apply stricter criteria to brands outside the Tier 1 list when valuing loans or property insurance policies.
Is the AP1 345 Wp module compatible with standard inverters and racking systems?
Yes, the electrical parameters of the AP1 345 Wp fall within the input range accepted by most string inverters and microinverters available on the market. Before designing the system, verify the MPPT voltage range of your inverter and the maximum number of modules per string. For the mounting system, the module's weight and dimensions are the key factors – confirm compatibility with your chosen racking manufacturer.
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