--- title: "JA Solar NS-310MH-80 310W Solar Panel - Specs & Review | ComparePV" description: "JA Solar NS-310MH-80 310W solar panel. Specs: 21.75% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/ja-solar-ns-310mh-80" updated: 2026-09-11 --- # JA Solar NS-310MH-80 Space saver, no clear weak spot 2,228 panels in the 210-410 W band, all technologies ## Identity - **Manufacturer:** JA Solar - **Model:** NS-310MH-80 - **Series:** Monocrystalline80 - **Rated power:** 310 W - **Cell technology:** Monocrystalline ## How it compares Compared against 210-410 W band, all technologies (2228 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 310 W | 370 W | Weak - bottom 16% | | | Module efficiency | 21.75% | 19.80% | Strong - top 2% | 7,358 | | Power density | 217.5 | 197.6 | Strong - top 2% | 7,312 | | Temperature coefficient | -0.290 | -0.350 | Strong - top 10% | 2,165 | | Weight (kg) | 15.0 kg | 21.0 kg | Strong - top 4% | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.75% | 19.80% | Strong - top 2% | 7,358 | | Power density | 217.5 | 197.6 | Strong - top 2% | 7,312 | | Temperature coefficient | -0.290 | -0.350 | Strong - top 10% | 2,165 | | Weight per kWp | 48.4 | 57.7 | Strong - top 4% | 2,244 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Strengths - **217.5 watts per square metre** - Top 2% of the 210-410 W band, against a median of 197.6. Ranked 7,312th in the whole database. - **21.75% module efficiency** - Top 2% of the 210-410 W band, against a median of 19.80%. Ranked 7,358th in the whole database. - **48.4 kg per kWp** - Top 4% of the 210-410 W band, against a median of 57.7. Ranked 2,244th in the whole database. - **Best for:** Residential and commercial. ## Specification ### Electrical - **Rated power (Pmax):** 310 W - **Efficiency:** 21.75 % - **Voltage at Pmax (Vmp):** 23.42 V - **Current at Pmax (Imp):** 13.24 A - **Open-circuit voltage (Voc):** 27.86 V - **Short-circuit current (Isc):** 14.26 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:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell count:** 80 ### Physical - **Length:** 1900 mm - **Width:** 750 mm - **Thickness:** 30 mm - **Weight:** 15.0 kg - **Area:** 1.43 m2 - **Power density:** 217.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 25 years ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7358 of 14005 | | Power density | 7312 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 2244 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Efficiency above peer-group median** - The efficiency range of 20.05%–23.15% clearly outperforms Waaree ARKA Series (19.81%) and Jinko Solar 72 Series Polycrystalline (17%). The upper bound of 23.15% also exceeds Techwise Solar Micro Sun Series (21.12%), making this series the efficiency leader within the provided peer comparables. - **BNEF Tier-1 manufacturer, active since 2005** - JA Solar has maintained continuous BNEF Tier-1 bankable status for many years, including Q1 2026. This ensures full bankability for installations — a requirement set by most financial institutions funding PV projects above 1 MWp. - **8 power variants (200–330 Wp)** - A broad power range within a single series allows matching the module to small residential systems (200–250 Wp) as well as compact commercial arrays (300–330 Wp) without mixing products from different generations or manufacturers. - **80-cell layout — optimized power density** - The 80-cell format delivers higher output power per module footprint compared to standard 60-cell configurations, directly translating to a higher yield per m² of roof or ground surface. - **25-year linear power warranty** - The 25-year performance warranty aligns with the Tier-1 industry standard and provides project-level financial predictability. The guaranteed minimum power retention throughout the module's operational life is critical for accurate LCOE modeling. ## Cons - **Series discontinued (2022)** - JA Solar Monocrystalline80 was discontinued in 2022 after only two years on the market (released 2020). Availability of new modules is severely limited, and service, replacement of damaged units, or power-matching during system expansions may be difficult or impossible to execute. - **Product warranty only 15 years** - Current Tier-1 manufacturers — including JA Solar's own newer lines such as Deep Blue 4.0 Pro — standardly offer 25-year product warranties. The Monocrystalline80 series stops at 15 years, effectively shortening the risk-free operational window by a decade and reducing attractiveness for long-term bank-financed projects. - **No bifacial technology** - Modules are strictly monofacial (is\_bifacial: false). In ground-mount or high-albedo surface installations (concrete, white TPO membrane), bifacial modules typically generate 5–15% additional energy from reflected irradiance. The absence of this feature is a tangible disadvantage versus most new product launches from 2022–2026. ## About this series The JA Solar Monocrystalline 80 series is designed to maximize energy production from a single module, where every square meter of roof or structure counts. The use of **monocrystalline cells in an 80-cell configuration** helps to better utilize the active surface area, while a refined connection architecture minimizes internal resistance losses. In practice, this translates to **higher daily production** and more stable operation in installations exposed to variable weather conditions. These modules are designed for **robust mechanical durability**, which is important on roofs in snowy and windy areas, and the quality of lamination and protection ensures long-term operation without frequent maintenance. Monocrystalline 80 is suitable for both residential and commercial installations, especially where the investor expects **low losses under partial shading** and predictable performance. Compared to many competing solutions, it stands out for its suitability for dense roof configurations and its emphasis on the real-world efficiency of the module, rather than just its specifications. ## Notable figures - Efficiency of 21.8% matches the \*\*database\*\* median - At 217.5 W/m² power density, roof space requirements are typical for \*\*database\*\* panels - At -0.29%/°C, hot weather performance is typical for \*\*database\*\* panels - At 15.0 kg, this panel is 11.5 kg lighter than \*\*database\*\* median (26.5 kg) - easier handling during installation - #7358 for efficiency, #2165 for temperature performance out of 14005 panels ## Questions ### Is the JA Solar Monocrystalline80 series still available for purchase? The JA Solar Monocrystalline80 series has been discontinued and is no longer offered as a new product through authorized distributors. Some units may still exist as old stock at certain resellers, but planning a system expansion around easy module availability is not advisable. For new projects, consider JA Solar's current lineup, which includes newer series with higher power outputs and improved specifications. ### What is the warranty on JA Solar Monocrystalline80 panels? JA Solar provided a 15-year product warranty on Monocrystalline80 modules, covering material and workmanship defects. In addition, a 25-year linear power output warranty guaranteed that the modules would maintain a specified minimum performance level over a quarter-century of operation. These warranty terms were consistent with Tier 1 manufacturer standards and reflect the long-term reliability intended for this series. ### How do JA Solar Monocrystalline80 panels perform under partial shading? The Monocrystalline80 series was engineered to minimize losses under partial shading, thanks to the optimized interconnection architecture of its 80-cell layout. This design limits the impact of a shaded area on the performance of the entire string, making the modules well-suited for rooftop installations affected by chimneys, dormers, or nearby buildings. It was one of the series' key selling points for residential prosumer systems. ### What is the maximum power output of a JA Solar Monocrystalline80 module, and is it enough for a home? The maximum rated power of a Monocrystalline80 module is 330 Wp. For a typical single-family home consuming 3,500–5,000 kWh per year, you would generally need between 8 and 15 modules, depending on location, roof pitch, and orientation. The series was well-suited for both residential and commercial applications where efficient use of limited roof space was a priority. ### Are JA Solar Monocrystalline80 panels bifacial? No, JA Solar Monocrystalline80 modules are not bifacial — they generate electricity from the front side only. These are standard frontside-only monocrystalline panels designed for typical pitched and flat roof installations, where albedo gain from reflected light is not a significant production factor. Bifacial technology is available in newer JA Solar series. ### Can JA Solar Monocrystalline80 modules handle heavy snow loads and strong winds? Yes, the Monocrystalline80 series was designed with robust mechanical durability in mind, making it suitable for installations in regions with significant snow and wind loads. The lamination quality and protective materials supported long-term operation with minimal maintenance needs. Always verify the specific datasheet for exact load ratings, as allowable mechanical stress values (e.g., 2400 Pa for snow) may vary between power variants within the series. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ns-290-330mh-80-1900-750-30-af19d6e2fc40.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-300MH-72](https://comparepv.com/panel/ja-solar-ns-300mh-72) | 300 W | -10 W, lighter, +1.6 pp | | [PolyCrown Solar Tech NS-300MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-72) | 300 W | -10 W, lighter, +1.6 pp | | [Heckert Solar ZEUS 1.2 FullBlack 280W](https://comparepv.com/panel/heckert-solar-zeus-1-2-fullblack-280w) | 280 W | -30 W, +1.6 pp, +5 yr warranty | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | +20 W, +1.4 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | +20 W, +1.4 pp | | [Gamko New Energy GKA182M285W](https://comparepv.com/panel/gamko-new-energy-gka182m285w) | 285 W | Lighter, +1.2 pp, +5 yr warranty | | [Gamko New Energy GKA182M260W](https://comparepv.com/panel/gamko-new-energy-gka182m260w) | 260 W | -50 W, +1.2 pp, +5 yr warranty | | [Gamko New Energy GKA182M270W](https://comparepv.com/panel/gamko-new-energy-gka182m270w) | 270 W | Lighter, +1.2 pp, +5 yr warranty | | [Gamko New Energy GKA182M300W](https://comparepv.com/panel/gamko-new-energy-gka182m300w) | 300 W | Heavier, +1.2 pp, +5 yr warranty | | [JA Solar NS-290MH-80](https://comparepv.com/panel/ja-solar-ns-290mh-80) | 290 W | -20 W, -1.4 pp | | [JA Solar NS-300MH-80](https://comparepv.com/panel/ja-solar-ns-300mh-80) | 300 W | -10 W, -0.7 pp | | [JA Solar NS-320MH-80](https://comparepv.com/panel/ja-solar-ns-320mh-80) | 320 W | +10 W, +0.7 pp | | [PolyCrown Solar Tech NS-320MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-320mh-80) | 320 W | +10 W, +0.7 pp | | [PolyCrown Solar Tech NS-310MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-310mh-80) | 310 W | Very close match | | [PolyCrown Solar Tech NS-300MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-80) | 300 W | -10 W, -0.7 pp | | [PolyCrown Solar Tech NS-290MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-290mh-80) | 290 W | -20 W, -1.4 pp | --- Source: https://comparepv.com/panel/ja-solar-ns-310mh-80 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.