--- title: "Solar N Plus AP1-345W 345W Solar Panel - Specs & Review | ComparePV" description: "Solar N Plus AP1-345W 345W solar panel. Specs: 20.45% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/solar-n-plus-ap1-345w" updated: 2026-09-11 --- # Solar N Plus AP1-345W Middle of its segment, heavy for its output 352 panels in the segment N-type 245-445 W ## Identity - **Manufacturer:** Solar N Plus - **Model:** AP1-345W - **Series:** AP1 - **Rated power:** 345 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 245-445 W (352 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 345 W | 425 W | Weak - bottom 6% | | | 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 (kg) | 23.0 kg | 22.0 kg | Weak - bottom 8% | | | Performance warranty | - | 30 yrs | | | ### Full peer table | Measure | This panel | Segment median | Standing | 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 | | | ### Watch out for - **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. - **Best for:** Residential and commercial. - **Not ideal for:** Weight-limited structures, tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 345 W - **Efficiency:** 20.45 % - **Voltage at Pmax (Vmp):** 35.30 V - **Current at Pmax (Imp):** 9.78 A - **Open-circuit voltage (Voc):** 42.20 V - **Short-circuit current (Isc):** 10.37 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 120 - **Bifacial:** yes ### Physical - **Length:** 1684 mm - **Width:** 1002 mm - **Thickness:** 30 mm - **Weight:** 23.0 kg - **Area:** 1.69 m2 - **Power density:** 204.5 Wp/m2 ### Warranty and degradation ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11545 of 14005 | | Power density | 11521 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 13180 of 14005 | | Warranty | 13880 of 14005 | ## About this series 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. ## Notable figures - 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 ## Questions ### 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. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ap1-345w-jp2025v1-1-2-128675008b67.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-300MH-72](https://comparepv.com/panel/ja-solar-ns-300mh-72) | 300 W | -45 W, lighter, +2.9 pp | | [PolyCrown Solar Tech NS-300MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-72) | 300 W | -45 W, lighter, +2.9 pp | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | -15 W, lighter, +2.7 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | -15 W, lighter, +2.7 pp | | [Gamko New Energy GKA182M300W](https://comparepv.com/panel/gamko-new-energy-gka182m300w) | 300 W | -45 W, lighter, +2.6 pp | | [Gamko New Energy GKA210M320W](https://comparepv.com/panel/gamko-new-energy-gka210m320w) | 320 W | -25 W, lighter, +2.6 pp | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | Lighter, +2.6 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | +15 W, lighter, +2.6 pp | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | +35 W, lighter, +2.6 pp | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | +35 W, lighter, +2.6 pp | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | +95 W, cooler, +2.4 pp | | [Jetion JT435SYk(B)](https://comparepv.com/panel/jetion-jt435syk-b) | 435 W | +90 W, cooler, +2.2 pp | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | +55 W, lighter, +2.2 pp | | [Jetion JT430SYk(B)](https://comparepv.com/panel/jetion-jt430syk-b) | 430 W | +85 W, cooler, +1.9 pp | | [Lina Energy LEPV 400](https://comparepv.com/panel/lina-energy-lepv-400) | 400 W | +55 W, lighter, +1.9 pp | | [Phono Solar NS-360MH-60](https://comparepv.com/panel/phono-solar-ns-360mh-60) | 360 W | +15 W, lighter, +1.7 pp | --- Source: https://comparepv.com/panel/solar-n-plus-ap1-345w Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.