--- title: "Peimar OR10H450MNDB (FB) 450W Solar Panel - Specs & Review | ComparePV" description: "Peimar OR10H450MNDB (FB) 450W solar panel. Specs: 23.04% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/peimar-or10h450mndb-fb" updated: 2026-09-11 --- # Peimar OR10H450MNDB (FB) Space saver, no clear weak spot 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** Peimar - **Model:** OR10H450MNDB (FB) - **Series:** OR Series - **Rated power:** 450 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 450-500 W (1089 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 450 W | 465 W | Weak - bottom 9% | | | Module efficiency | 23.04% | 22.52% | Strong - top 14% | 1,711 | | Power density | 230.4 | 225.2 | Strong - top 14% | 1,708 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 23.2 kg | 24.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.04% | 22.52% | Strong - top 14% | 1,711 | | Power density | 230.4 | 225.2 | Strong - top 14% | 1,708 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 51.6 | 52.2 | Typical | 5,005 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **230.4 watts per square metre** - Top 14% of the TOPCon 450-500 W segment, against a median of 225.2. - **23.04% module efficiency** - Top 14% of the TOPCon 450-500 W segment, against a median of 22.52%. - **Best for:** Residential, commercial, utility-scale, shaded-installations and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 450 W - **Efficiency:** 23.04 % - **Voltage at Pmax (Vmp):** 33.25 V - **Current at Pmax (Imp):** 13.53 A - **Open-circuit voltage (Voc):** 38.99 V - **Short-circuit current (Isc):** 14.25 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:** 0.046 %/degC - **NOCT:** 43 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:** 23.2 kg - **Area:** 1.95 m2 - **Power density:** 230.4 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1711 of 14005 | | Power density | 1708 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 5005 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Top-tier efficiency in the segment** - Efficiency of 23.03-23.04% puts the OR Series on par with the best peer comparables (Solarspace Lumina II 23.03%, Heliene 144HC 23.02%) and clearly ahead of Sunova TS-BW78 (21.3%) at the same 595 Wp max power. - **N-type TOPCon plus half-cut cells** - The combination of N-type TOPCon technology with half-cut cell design reduces LID/LeTID degradation, improves high-temperature performance, and increases resistance to microcracks from transport and installation. - **30-year power warranty** - The linear power warranty extends to 30 years, exceeding the segment's typical 25-year standard, while the 25-year product warranty adds solid long-term investment protection. - **Bifacial yield boost** - Bifacial variants capture additional energy from ground albedo reflection, which is particularly beneficial for ground-mount installations and light-colored roofs where monofacial modules lose this potential. - **Wide power range and variant selection** - 7 variants spanning 450-595 Wp provide flexibility to fit both small residential rooftop systems and commercial/industrial-scale projects without switching suppliers within a single series. ## Cons - **No BNEF Tier-1 status** - Peimar does not appear on the current BloombergNEF Tier-1 list, which in practice can make bank financing harder for large commercial and utility-scale projects compared with manufacturers holding that status (e.g., Jinko, Trina, LONGi). - **Limited market track record** - The OR Series launched in 2023, and the manufacturer itself (Turin, Italy) has operated since only 2012 - a much shorter track record than Asian giants with over a decade of field history, making long-term degradation harder to independently verify. ## About this series The Peimar OR Series consists of half-cut modules designed to perform reliably in real roof and ground conditions, where factors such as shading losses, high temperatures, and long-term reliability are critical. Dividing the cells in half improves the current distribution within the module, which in practice helps to minimize power losses under partial shading and increases resistance to microcracks that can occur during installation and operation. Depending on the variant, either monofacial or bifacial solutions are available, as well as versions with TOPCon (N-type) technology, which support high efficiency and better long-term performance stability. An additional advantage is the hardened glass with an anti-reflective coating, which improves light absorption and resistance to weather conditions. The OR Series is a good choice for residential, commercial, and industrial installations - particularly where high annual yield, predictable performance, and the flexibility to choose a module for the project are important. ## Notable figures - At 23.0% efficiency, this panel is 0.5pp above typical \*\*TOPCon 450-500W\*\* modules (median: 22.5%) - At 230.4 W/m² power density, this panel generates 5.2 W/m² more per unit area than \*\*TOPCon 450-500W\*\* median (225.2 W/m²) - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 450-500W\*\* panels - In the top 12% for efficiency among all TOPCon panels ## Questions ### What is the warranty on the Peimar OR Series panels and what does it cover? The Peimar OR Series comes with a 25-year product warranty covering material and workmanship defects, and a 30-year linear power output warranty. This means the panel is guaranteed to produce a minimum specified power output for 30 years. A 30-year power warranty is among the longer offerings on the market and is a key factor when calculating return on investment for a long-term PV installation. ### What is TOPCon technology and why does the Peimar OR Series use it? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that reduces carrier recombination losses at the cell surface. In practice, this delivers higher module efficiency — around 23% in the OR Series — and better long-term performance stability compared to older PERC cells. TOPCon modules degrade more slowly over time, which improves energy yield across the full system lifetime and lowers LCOE. ### Are the Peimar OR Series bifacial panels suitable for both ground-mount and rooftop installations? Yes. The bifacial variant of the OR Series captures light from both the front and rear sides, delivering real additional yield of up to 25% of front-side output on ground-mount systems with reflective surfaces such as gravel, concrete, or light-colored soil. On rooftops the bifacial gain is smaller but still measurable. Ground-mount installations remain the environment where bifacial technology shows the greatest advantage. ### What is the maximum power output of the Peimar OR Series? The top model in the OR Series is the OR10H595MNDB with a peak power of 595 Wp. It uses 144 half-cut M10 N-type TOPCon cells in a bifacial configuration, reaching approximately 23% module efficiency. That is a high power density for a standard aluminum-framed module, meaning more energy per square meter of available roof or ground space. ### Is the Peimar OR Series suitable for residential installations or only commercial projects? The OR Series is designed for residential, commercial, and industrial applications. The availability of multiple power variants, half-cut cell technology that reduces partial-shading losses, and the choice between monofacial and bifacial configurations make it adaptable to a wide range of projects. For a residential rooftop the monofacial variant is typically the simpler choice, while bifacial makes more sense for ground-mount setups. ### Does Peimar manufacture OR Series panels in Italy and does that matter for quality? Peimar is an Italian manufacturer with its production facility in Brescia, where it handles the complete manufacturing process from raw material selection through final packaging. European production typically comes with rigorous quality control, a shorter supply chain, and compliance with EU certification standards. It is worth noting that Peimar is not listed as a Tier-1 module manufacturer by major bankability agencies, so buyers involved in larger financed projects should confirm bankability requirements with their lender. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/peimar-en-or10h450mndb-fb-5e568a05984a.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +45 W, cooler, +1.8 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +40 W, cooler, +1.5 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +50 W, cooler, +1.5 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +50 W, cooler, +1.5 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +50 W, cooler, +1.5 pp | | [GCL GCL-NR10R/54BGDF](https://comparepv.com/panel/gcl-gcl-nr10r-54bgdf) | 500 W | +50 W, cooler, +1.5 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +60 W, cooler, +2.0 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +55 W, cooler, +1.7 pp | --- Source: https://comparepv.com/panel/peimar-or10h450mndb-fb 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.