--- title: "Solar N Plus SP-N18/132HG 700 700W Solar Panel - Specs & Review | ComparePV" description: "Solar N Plus SP-N18/132HG 700 700W solar panel. Specs: 22.50% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/solar-n-plus-sp-n18-132hg-700" updated: 2026-09-11 --- # Solar N Plus SP-N18/132HG 700 Middle of its segment, modest efficiency 420 panels in the segment TOPCon 700-750 W ## Identity - **Manufacturer:** Solar N Plus - **Model:** SP-N18/132HG 700 - **Series:** SP-N18/132HG - **Rated power:** 700 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 700-750 W (420 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 700 W | 715 W | Weak - bottom 7% | | | Module efficiency | 22.50% | 23.00% | Weak - bottom 5% | 4,222 | | Power density | 225.3 | 230.2 | Weak - bottom 7% | 3,989 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 22% | 6,093 | | Weight (kg) | 38.1 kg | 38.0 kg | Weak - bottom 10% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.50% | 23.00% | Weak - bottom 5% | 4,222 | | Power density | 225.3 | 230.2 | Weak - bottom 7% | 3,989 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 22% | 6,093 | | Weight per kWp | 54.4 | 52.9 | Weak - bottom 10% | 8,726 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **22.50% module efficiency** - Bottom 5% of the TOPCon 700-750 W segment, against a median of 23.00%. Ranked 4,222nd in the whole database. - **225.3 watts per square metre** - Bottom 7% of the TOPCon 700-750 W segment, against a median of 230.2. Ranked 3,989th in the whole database. - **54.4 kg per kWp** - Bottom 10% of the TOPCon 700-750 W segment, against a median of 52.9. Ranked 8,726th in the whole database. - **Best for:** Commercial, utility-scale and hot-climate. - **Not ideal for:** Tight roof space, roofs where every square metre has to count and weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 700 W - **Efficiency:** 22.50 % - **Voltage at Pmax (Vmp):** 40.50 V - **Current at Pmax (Imp):** 17.28 A - **Open-circuit voltage (Voc):** 48.30 V - **Short-circuit current (Isc):** 18.32 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 132 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 33 mm - **Weight:** 38.1 kg - **Area:** 3.11 m2 - **Power density:** 225.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 612 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 4222 of 14005 | | Power density | 3989 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 8726 of 14005 | | Warranty | 21 of 14005 | ## About this series The Solar N Plus SP-N18/132HG series is designed for maximum energy production in locations where every square meter and long-term stability are crucial. The use of **N-type cells** and **TOPCon** architecture results in high efficiency and better performance in hot conditions - this means the installation loses less power on hot days, which is particularly important during the summer season. The panel is **bifacial**, meaning it can also utilize reflected light from the ground - this is especially beneficial on light roofs, with ballast, on membranes, and in PV farms with adequate spacing between rows. In practice, SP-N18/132HG solves common problems associated with large-scale projects: limited mounting area, the need for predictable energy yields, and the risk of rapid degradation. The manufacturer also highlights the **anti-LID and anti-PID** properties, which helps maintain the stable operation of the modules in more challenging operating conditions. This is a good choice for photovoltaic farms, warehouse roofs, and commercial installations, where the long-term cost of energy is the primary concern, rather than short-term gains. ## Notable figures - Efficiency of 22.5% matches the \*\*TOPCon 700-750W\*\* median - At 225.3 W/m², this panel generates 4.9 W/m² less per unit area than \*\*TOPCon 700-750W\*\* median (230.2 W/m²) - At -0.30%/°C, hot weather performance is typical for \*\*TOPCon 700-750W\*\* panels - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof - Ranked #4222 out of 14005 panels for efficiency in the database ## Questions ### What warranty does the Solar N Plus SP-N18/132HG come with? The manufacturer offers a 15-year product warranty and a 30-year power output warranty. After 30 years of operation, the panel is guaranteed to retain at least 87.4% of its rated power. This is one of the longer linear power warranty schedules available in the market for this module class, providing predictable LCOE across the full operational lifetime of the installation. ### Is the SP-N18/132HG a good fit for a commercial or industrial rooftop? Yes, commercial and industrial rooftops are a primary application for this series. At 720 Wp and up to 23.2% efficiency, it maximizes power output from limited roof space. The dual-glass bifacial construction weighs approximately 38 kg and requires an adequate racking system, but TOPCon technology ensures stable, long-term yields with low degradation — a critical factor when calculating LCOE for commercial solar projects. ### What is the bifacial gain on the SP-N18/132HG and when does it pay off the most? Bifacial means the panel generates power from both sides — the rear face captures albedo (reflected light) from the surface below. Bifacial gain is most valuable on rooftops with light-colored membranes or white ballast, in ground-mount PV farms with adequate row clearance from the ground, and on white gravel substrates. With favorable albedo conditions, rear-side contribution can add 5–15% of additional annual energy yield. ### How does the SP-N18/132HG perform in hot weather — does it lose much power? The N-type TOPCon cell technology has a temperature coefficient of approximately -0.30%/°C, which outperforms conventional PERC panels at -0.35%/°C. In practice, this means the module loses proportionally less power on hot summer days. For installations exposed to prolonged high temperatures, this translates into measurably higher annual energy yield compared to older cell technologies. ### Is the SP-N18/132HG protected against PID and LID degradation? Yes, the manufacturer declares anti-PID and anti-LID compliance. N-type cells are inherently far less susceptible to LID than the P-type cells used in PERC modules, meaning the panel does not experience a notable power drop immediately after installation. Annual degradation beyond year one should not exceed 0.4%, ensuring stable output throughout the full 30-year power warranty period. ### How many SP-N18/132HG panels do I need to build a 1 MWp solar farm? At 720 Wp per module, you need exactly 1,389 panels to reach 1 MWp peak capacity (1,000,000 Wp ÷ 720 Wp ≈ 1,389 units). In utility-scale PV projects, it is advisable to add a 1–2% reserve for system losses. The high per-unit wattage of the SP-N18/132HG reduces the total panel count, shortens installation time, and lowers BoS costs compared to lower-wattage modules. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/sp-n18-132hg700-720w-2024v3-0-fb4fd2362f31.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | -50 W, lighter, +2.7 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | Cooler, lighter, +2.7 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, lighter, +2.5 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | Cooler, lighter, +2.5 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | Cooler, lighter, +2.4 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, lighter, +2.3 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | Cooler, lighter, +2.3 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | Cooler, lighter, +2.3 pp | | [Solar N Plus SP-G12/132HG655W](https://comparepv.com/panel/solar-n-plus-sp-g12-132hg655w) | 655 W | -45 W, hotter, -1.4 pp | | [Solar N Plus SP-G12/132HG660W](https://comparepv.com/panel/solar-n-plus-sp-g12-132hg660w) | 660 W | -40 W, hotter, -1.3 pp | | [Solar N Plus SP-G12/132HG665W](https://comparepv.com/panel/solar-n-plus-sp-g12-132hg665w) | 665 W | -35 W, hotter, -1.1 pp | | [Solar N Plus SP-G12/132HG670W](https://comparepv.com/panel/solar-n-plus-sp-g12-132hg670w) | 670 W | -30 W, hotter, -0.9 pp | | [Solar N Plus SP-G12/132HG675W](https://comparepv.com/panel/solar-n-plus-sp-g12-132hg675w) | 675 W | -25 W, hotter, -0.8 pp | | [Solar N Plus SP-N18/132HG-705W](https://comparepv.com/panel/solar-n-plus-sp-n18-132hg-705w) | 705 W | Very close match | | [Solar N Plus SP-N18/132HG-710W](https://comparepv.com/panel/solar-n-plus-sp-n18-132hg-710w) | 710 W | +10 W, +0.4 pp | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +105 W, cooler, +2.6 pp | --- Source: https://comparepv.com/panel/solar-n-plus-sp-n18-132hg-700 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.