--- title: "PolyCrown Solar Tech NS-270MH-72 270W Solar Panel - Specs & Review | ComparePV" description: "PolyCrown Solar Tech NS-270MH-72 270W solar panel. Specs: 20.99% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/polycrown-solar-tech-ns-270mh-72" updated: 2026-09-11 --- # PolyCrown Solar Tech NS-270MH-72 Light for its output, no clear weak spot 1,154 panels in the 170-370 W band, all technologies ## Identity - **Manufacturer:** PolyCrown Solar Tech - **Model:** NS-270MH-72 - **Series:** Monocrystalline72 - **Rated power:** 270 W - **Cell technology:** Monocrystalline ## How it compares Compared against 170-370 W band, all technologies (1154 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 270 W | 320 W | Weak - bottom 21% | | | Module efficiency | 20.99% | 18.09% | Strong - top 5% | 9,944 | | Power density | 209.9 | 180.4 | Strong - top 4% | 9,899 | | Temperature coefficient | -0.290 | -0.360 | Strong - top 11% | 2,165 | | Weight (kg) | 12.5 kg | 19.0 kg | Strong - top 2% | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.99% | 18.09% | Strong - top 5% | 9,944 | | Power density | 209.9 | 180.4 | Strong - top 4% | 9,899 | | Temperature coefficient | -0.290 | -0.360 | Strong - top 11% | 2,165 | | Weight per kWp | 46.3 | 63.3 | Strong - top 2% | 1,110 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Strengths - **46.3 kg per kWp** - Top 2% of the 170-370 W band, against a median of 63.3. Ranked 1,110th in the whole database. - **209.9 watts per square metre** - Top 4% of the 170-370 W band, against a median of 180.4. Ranked 9,899th in the whole database. - **20.99% module efficiency** - Top 5% of the 170-370 W band, against a median of 18.09%. Ranked 9,944th in the whole database. - **Best for:** Weight-limited structures, roofs where every square metre counts and small roofs that need every watt. ## Specification ### Electrical - **Rated power (Pmax):** 270 W - **Efficiency:** 20.99 % - **Voltage at Pmax (Vmp):** 18.82 V - **Current at Pmax (Imp):** 14.35 A - **Open-circuit voltage (Voc):** 22.78 V - **Short-circuit current (Isc):** 15.19 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:** 72 ### Physical - **Length:** 1715 mm - **Width:** 750 mm - **Thickness:** 30 mm - **Weight:** 12.5 kg - **Area:** 1.29 m2 - **Power density:** 209.9 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 80.0 % - **First-year degradation:** 2.50 % - **Annual degradation:** 0.73 % - **Output after 30 years:** 206 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 9944 of 14005 | | Power density | 9899 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 1110 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Efficiency up to 23.32% — Tier-1 level** - Peak efficiency of 23.32% matches the direct comparable JA Solar Monocrystalline72 (300Wp/23.32%) and is significantly higher than other listed comparables, such as DMEGC Greenhouse (11.61%) or Solitek SOLID Agro Frameless (14.88%). This is a top-of-segment result for the classic 72-cell format. - **Longer product warranty than JA Solar** - The 15-year product warranty exceeds the standard offered by the direct comparable — JA Solar Monocrystalline72 typically ships with a 12-year product warranty at the same 25-year power warranty. This gives investors longer coverage without any tradeoff in performance guarantees. - **Low temperature coefficient of -0.290%/°C** - Per the NS-260-300MH-72 datasheet, the power temperature coefficient is -0.290%/°C, better than the typical -0.35 to -0.40%/°C of older mono PERC modules. This translates into lower yield losses on hot days. - **Multi-busbar design with strict quality control** - Multi-busbar cell interconnection shortens the electron flow path and reduces resistive losses, while rigorous manufacturing QC improves PID resistance and reduces microcrack risk — supporting stable long-term energy yield. - **Reinforced frame for snow and wind loads** - The anodized frame construction offers increased resistance to mechanical loads typical of the Polish climate zone, such as accumulated snow in winter and strong wind gusts, reducing the risk of field microdamage. ## Cons - **Low unit power for 2026 standards** - Maximum power of 300Wp on a 72-cell format sits well below today's mainstream market standard (400-600+ Wp modules). This means more modules, more cabling and more mounting structure per kWp installed, raising BoS costs on larger projects. - **No bifacial technology** - The series is monofacial (is\_bifacial: false), so it cannot capture the additional rear-side energy gain from reflected light that bifacial modules provide (typically 5-20% depending on ground albedo) — an increasingly standard feature for the utility-scale and commercial installations this series targets. ## About this series The PolyCrown Solar Tech Monocrystalline 72 series is a solution designed for projects requiring maximum efficiency and energy stability on large surfaces. Utilizing **advanced monocrystalline cell technology**, these panels offer an excellent power-to-space ratio, making them an ideal choice for solar farms and large commercial installations. A key innovation is the use of a multi-busbar design, which effectively shortens the electron flow path and minimizes internal losses. Thanks to the **high transmittance of tempered glass** with an anti-reflective coating, these modules maintain impressive efficiency even in low-light conditions, which is a significant advantage in the Polish climate zone. The 72 series solves the problem of performance degradation over time, offering **increased resistance to the PID effect** and micro-cracks thanks to rigorous quality control at the production stage. A robust, anodized frame guarantees **resistance to extreme mechanical loads**, such as heavy snow or strong wind gusts. By choosing these panels, investors gain the assurance of long-term yields while reducing installation costs, as the higher unit power of the module allows for a reduction in the number of structural components. It is a solid foundation for a profitable investment in renewable energy sources, standing out from the competition with its high performance in variable temperatures. ## Notable figures - Efficiency of 21.0% is 0.8pp below the \*\*database\*\* median (21.8%) - Power density of 209.9 W/m² is 8.2 W/m² below \*\*database\*\* median (218.1 W/m²) - needs more roof space - Temperature coefficient of -0.29%/°C matches the \*\*database\*\* median - At 12.5 kg, this panel is 14.0 kg lighter than \*\*database\*\* median (26.5 kg) - easier handling during installation - Ranked #9944 out of 14005 panels for efficiency in the database ## Questions ### What warranty does the PolyCrown Solar Tech Monocrystalline72 series carry and what does it cover? The Monocrystalline72 series comes with a 15-year product warranty covering material defects and workmanship, plus a 25-year linear power output warranty. The power warranty guarantees a defined minimum performance level over the full 25-year period. This is among the longer power warranties available on the market and is an important factor when calculating the LCOE for a PV farm or large commercial installation. ### Do PolyCrown Monocrystalline72 panels perform well under the overcast conditions typical of Central Europe? Yes. The Monocrystalline72 series uses high-transmittance tempered glass with an anti-reflective coating, which improves energy harvest under diffuse and low-irradiance conditions. This makes the modules well-suited for climates like Poland's, where direct solar irradiation is lower than in Southern Europe. Investors planning installations in central or northern regions will benefit from the module's improved low-light performance. ### What is PID and are the Monocrystalline72 panels protected against it? PID (Potential Induced Degradation) is a gradual power loss caused by high system voltage and moisture penetrating the module laminate. The Monocrystalline72 series is built with enhanced PID resistance through strict cell-level quality control and optimized encapsulant composition. In practice, this reduces the risk of permanent power degradation in large string systems operating at high DC voltages, helping to protect long-term energy yield. ### What mechanical loads can PolyCrown Monocrystalline72 panels handle — are they suitable for heavy snow regions? The anodized aluminum frame of the Monocrystalline72 series is engineered for extreme mechanical loads, including heavy snow accumulation and strong wind gusts. 72-cell commercial-grade modules in this class are typically certified for static loads around 5400 Pa (snow) and 2400 Pa (wind), though exact values should be confirmed in the product datasheet. This makes them a viable choice for flat rooftop and ground-mount systems in continental climates. ### Is 300 Wp enough for a large-scale PV farm, or is the Monocrystalline72 series underpowered for utility projects? At 300 Wp, the Monocrystalline72 sits in the commercial module class, though the utility-scale market increasingly favors modules above 400 Wp. Its key advantage is a high power-to-footprint ratio: higher per-module wattage reduces the total number of modules, mounting structures, and BoS components, lowering overall installation costs. This makes the series competitive for projects with constrained roof or land area, even if it is not the highest-density option available today. ### How does the multi-busbar design in the Monocrystalline72 series differ from older technology and why does it matter? Traditional monocrystalline cells used 2–3 busbars to collect current. The Monocrystalline72 series uses a multi-busbar (MBB) architecture, which shortens the electron path and distributes thermal stress across more contact points. The practical results are lower internal resistive losses, higher module efficiency, and improved resistance to microcracks that can develop during shipping or installation — all of which contribute to more stable long-term power output. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ns-260-300mh-72-1715-750-30-b0e55cf8e19d.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-300MH-72](https://comparepv.com/panel/ja-solar-ns-300mh-72) | 300 W | +30 W, +2.3 pp | | [PolyCrown Solar Tech NS-300MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-72) | 300 W | +30 W, +2.3 pp | | [Heckert Solar ZEUS 1.2 FullBlack 280W](https://comparepv.com/panel/heckert-solar-zeus-1-2-fullblack-280w) | 280 W | Cooler, +2.3 pp, +5 yr warranty | | [Gamko New Energy GKA182M285W](https://comparepv.com/panel/gamko-new-energy-gka182m285w) | 285 W | Lighter, +2.0 pp, +5 yr warranty | | [Gamko New Energy GKA182M240W](https://comparepv.com/panel/gamko-new-energy-gka182m240w) | 240 W | -30 W, +2.0 pp, +5 yr warranty | | [Gamko New Energy GKA182M260W](https://comparepv.com/panel/gamko-new-energy-gka182m260w) | 260 W | Lighter, +2.0 pp, +5 yr warranty | | [Gamko New Energy GKA182M270W](https://comparepv.com/panel/gamko-new-energy-gka182m270w) | 270 W | Lighter, +2.0 pp, +5 yr warranty | | [Gamko New Energy GKA182M300W](https://comparepv.com/panel/gamko-new-energy-gka182m300w) | 300 W | Heavier, +2.0 pp, +5 yr warranty | | [Gamko New Energy GKA210M320W](https://comparepv.com/panel/gamko-new-energy-gka210m320w) | 320 W | +50 W, +2.0 pp, +5 yr warranty | | [PolyCrown Solar Tech NS-260MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-260mh-72) | 260 W | -10 W, -0.8 pp | | [PolyCrown Solar Tech NS-280MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-280mh-72) | 280 W | +10 W, +0.8 pp | | [PolyCrown Solar Tech NS-290MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-290mh-72) | 290 W | +20 W, +1.6 pp | | [JA Solar NS-290MH-72](https://comparepv.com/panel/ja-solar-ns-290mh-72) | 290 W | +20 W, +1.6 pp | | [JA Solar NS-280MH-72](https://comparepv.com/panel/ja-solar-ns-280mh-72) | 280 W | +10 W, +0.8 pp | | [Techwise Solar TW-280MM-1](https://comparepv.com/panel/techwise-solar-tw-280mm-1) | 280 W | +10 W, hotter, -5 yr warranty | | [JA Solar NS-270MH-72](https://comparepv.com/panel/ja-solar-ns-270mh-72) | 270 W | Very close match | --- Source: https://comparepv.com/panel/polycrown-solar-tech-ns-270mh-72 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.