--- title: "Beny New Energy BENY420M10-108D4 420W Solar Panel - Specs & Review | ComparePV" description: "Beny New Energy BENY420M10-108D4 420W solar panel. Specs: 21.50% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/beny-new-energy-beny420m10-108d4" updated: 2026-09-11 --- # Beny New Energy BENY420M10-108D4 Middle of its segment, modest efficiency 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** Beny New Energy - **Model:** BENY420M10-108D4 - **Series:** BENY410~430M10-108D4 - **Rated power:** 420 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 400-450 W (1218 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 420 W | 435 W | Weak - bottom 16% | | | Module efficiency | 21.50% | 22.00% | Weak - bottom 17% | 7,958 | | Power density | 215.1 | 220.2 | Weak - bottom 19% | 7,882 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 21.0 kg | 22.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.50% | 22.00% | Weak - bottom 17% | 7,958 | | Power density | 215.1 | 220.2 | Weak - bottom 19% | 7,882 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 50.0 | 51.4 | Typical | 3,317 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **21.50% module efficiency** - Bottom 17% of the TOPCon 400-450 W segment, against a median of 22.00%. - **215.1 watts per square metre** - Bottom 19% of the TOPCon 400-450 W segment, against a median of 220.2. - **Best for:** Residential, commercial, hot-climate and shaded-installations. - **Not ideal for:** Tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 420 W - **Efficiency:** 21.50 % - **Voltage at Pmax (Vmp):** 31.97 V - **Current at Pmax (Imp):** 13.14 A - **Open-circuit voltage (Voc):** 38.46 V - **Short-circuit current (Isc):** 14.09 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 technology:** TOPCon - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.0 kg - **Area:** 1.95 m2 - **Power density:** 215.1 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:** 367 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7958 of 14005 | | Power density | 7882 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 3317 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon Technology** - N-type TOPCon cells exhibit lower LID/LeTID degradation and superior high-temperature performance compared to mainstream PERC modules. The Pmax temperature coefficient of -0.29%/°C translates to meaningfully higher energy yield in summer conditions — at a module temperature of 70°C, power losses are approximately 15% lower than a typical PERC module rated at Tc = -0.35%/°C. - **30-Year Power Warranty (87.4% Retention)** - The manufacturer guarantees at least 87.4% of nominal power output after 30 years of operation. By comparison, many budget-tier modules offer 25-year warranties with only 84.8% retention. The extended warranty horizon simplifies DCF modeling for prosumer installations and utility-scale PV projects with long payback periods. - **Bifacial Construction** - The bifacial double-glass design enables absorption of albedo radiation reflected from the mounting surface. On light-colored roofing membranes or ground-mount systems over high-albedo substrates, the manufacturer claims up to 30% additional yield per m², directly increasing the real-world kWh/kWp ratio. - **21–22% Efficiency on Par with Segment Leaders** - The peak efficiency of 22% for the 430 Wp variant places this series alongside the SunLink SL5M108 (22%) and VSUN N-108MH-BW (22.02%), and above the Silfab Elite (21.4%). On rooftop installations with limited available area, higher module efficiency directly reduces the number of panels required. - **Five Wattage Variants (410–430 Wp)** - The series covers five wattage options spanning 410–430 Wp, making it straightforward to size string power precisely to the available roof area and inverter MPPT parameters without the need to mix module series. ## Cons - **Not Listed as Tier-1 by BNEF** - Beny New Energy does not appear on the BloombergNEF bankable manufacturers list (verified Q1 2026). For commercial projects financed through loans or leasing arrangements, this may present an obstacle, as banks and financing institutions typically require modules from Tier-1 rated manufacturers. The impact is negligible for residential prosumer installations, but in the C&I and utility-scale PV segments it represents a tangible barrier. - **Manufacturer Primarily Known for BoS Components** - BENY/ZJBENY built its reputation primarily as a supplier of DC disconnects, fuses, and combiner boxes, with over 2 million projects in electrical protection. Its track record in PV module manufacturing is comparatively short — the BENY410~430M10-108D4 series dates to 2023 — which is a risk factor worth weighing against the 30-year power warranty. ## About this series The BENY410~430M10-108D4 series is a range of modules designed for high energy production under real-world conditions, even when the roof is not perfectly sunlit throughout the day. The use of **TOPCon technology** ensures stable operation and good efficiency, while the **bifacial design** allows for the use of reflected light, which is particularly important on bright roofs, membranes, and ground-mounted installations. Another notable feature is the **low temperature coefficient**, which allows the module to perform better in summer, reducing energy losses during hot weather. The series also offers a **long power warranty**, which makes it easier to plan investments and predict energy production over the long term. This is a good choice for homes, small and medium-sized businesses, and PV farms, where energy yield, resistance to environmental conditions, and cost-effectiveness per square meter are important, rather than just the specifications listed in the catalog. ## Notable figures - Efficiency of 21.5% matches the \*\*TOPCon 400-450W\*\* median - At 215.1 W/m², this panel generates 5.1 W/m² less per unit area than \*\*TOPCon 400-450W\*\* median (220.2 W/m²) - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 400-450W\*\* panels - At 21.0 kg, weight matches the \*\*TOPCon 400-450W\*\* median - In the top 57% for efficiency among all TOPCon panels ## Questions ### What warranty coverage applies to the Beny New Energy BENY410~430M10-108D4 series panels? The BENY410~430M10-108D4 series comes with a 15-year product warranty covering material and workmanship defects, along with a 30-year power output warranty. After 30 years of operation, the module is guaranteed to retain at least 87.4% of its nominal power. This is one of the longer warranty packages available in this price class and represents a compelling argument when calculating return on investment. ### What does TOPCon technology mean in the Beny BENY410~430M10-108D4 panels, and is the premium worth paying? TOPCon is an N-type cell architecture featuring an additional passivating layer that minimizes electron recombination losses. In practice, this translates to higher efficiency (approximately 21–22%) and a lower temperature coefficient of around -0.29%/°C compared to older PERC cells. The module loses less power during high-temperature conditions, resulting in better annual energy yields without requiring a larger system footprint. ### Is the Beny BENY430M10-108D4 panel suitable for a roof with partial shading? The series uses a 108-cell half-cut layout, which divides the module into two electrically independent halves. As a result, shading affecting one portion of the roof — such as from a chimney, dormers, or antenna — causes smaller losses across the entire system compared to conventional full-cell modules. The bifacial design with a glass rear sheet further improves resilience to localized shading by reflecting ambient light onto the back surface. ### Are the Beny BENY410~430M10-108D4 panels bifacial, and when does bifaciality actually pay off? Yes, the series is bifacial — the rear surface of the module also generates power from diffuse and reflected light. The real benefit becomes apparent with bright underlying surfaces: white roofing membranes, light-colored gravel ballast, or a grass lawn can deliver up to 10–15% additional energy per year. On dark roof tiles, bifaciality has less impact, though it still contributes positively to yield on overcast days. ### What are the dimensions and weight of the Beny BENY430M10-108D4 panel — will it fit on a typical roof, and can an installer handle it? The module measures approximately 1722 × 1134 × 30 mm and weighs around 21 kg. These are standard dimensions for the 430 Wp class and fit conventional rooftop mounting structures without issue. Two-person installation is comfortable, as the weight is comparable to PERC modules of similar power output. It is nonetheless advisable to verify the load-bearing capacity of the roof structure before installation, particularly on older buildings. ### Is Beny New Energy a reputable manufacturer — can I trust them for a panel purchase intended to last 30 years? Beny New Energy is a manufacturer with a European headquarters in Germany, operating in the renewable energy sector, although it does not appear on Tier 1 lists published by major rating agencies such as BloombergNEF. This indicates a smaller production scale compared to market leaders. Before purchasing, it is advisable to verify the availability of warranty service in your country and to confirm whether the distributor can provide support for warranty claims over the 15–30 year coverage period. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/beny-solar-panel-cfc8f959abb3.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Just Solar JST-EDMH-(445-465)W-TD (465W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-465w-class) | 465 W | +45 W, hotter, +2.3 pp | | [Luxor Solar LX-465M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-465m-182r-96-gg) | 465 W | +45 W, cooler, +2.3 pp | | [Maxeon SPR-MAX7-470](https://comparepv.com/panel/maxeon-spr-max7-470) | 470 W | +50 W, +2.2 pp, +10 yr warranty | | [AIKO AIKO-A470-MAH54Mb](https://comparepv.com/panel/aiko-aiko-a470-mah54mb) | 470 W | +50 W, cooler, +2.1 pp | | [AIKO AIKO-A460-MAH54Mb](https://comparepv.com/panel/aiko-shenzhen-aiko-digital-energy-technology-co-ltd-aiko-a460-mah54mb-1) | 460 W | +40 W, +2.1 pp | | [TCL Zhonghuan HSM-BD54-LA470](https://comparepv.com/panel/tcl-zhonghuan-hsm-bd54-la470) | 470 W | +50 W, cooler, +2.1 pp | | [Beny New Energy BENY410M10-108D4](https://comparepv.com/panel/beny-new-energy-beny410m10-108d4) | 410 W | -10 W, -0.5 pp | | [Beny New Energy BENY415M10-108D4](https://comparepv.com/panel/beny-new-energy-beny415m10-108d4) | 415 W | Very close match | | [Beny New Energy BENY425M10-108D4](https://comparepv.com/panel/beny-new-energy-beny425m10-108d4) | 425 W | +0.3 pp | | [Beny New Energy BENY430M10-108D4](https://comparepv.com/panel/beny-new-energy-beny430m10-108d4) | 430 W | +10 W, +0.5 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +90 W, cooler, +3.5 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +75 W, cooler, +3.3 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +85 W, cooler, +3.2 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +70 W, cooler, +3.0 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +80 W, cooler, +3.0 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +80 W, cooler, +3.0 pp | --- Source: https://comparepv.com/panel/beny-new-energy-beny420m10-108d4 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.