--- title: "Bruk-Bet BEM-340 340W Solar Panel - Specs & Review | ComparePV" description: "Bruk-Bet BEM-340 340W solar panel. Specs: 20.32% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/bruk-bet-bem-340" updated: 2026-09-11 --- # Bruk-Bet BEM-340 Middle of its segment, weak in heat 288 panels in the segment N-type 240-440 W ## Identity - **Manufacturer:** Bruk-Bet - **Model:** BEM-340 - **Series:** NIVO EXTREME - **Rated power:** 340 W - **Cell technology:** N-type ## How it compares Compared against segment N-type 240-440 W (288 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 340 W | 420 W | Weak - bottom 6% | | | Module efficiency | 20.32% | 21.50% | Weak - bottom 21% | 11,739 | | Power density | 203.2 | 215.1 | Weak - bottom 21% | 11,742 | | Temperature coefficient | -0.360 | -0.300 | Weak - bottom 8% | 12,345 | | Weight (kg) | 19.0 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 | 20.32% | 21.50% | Weak - bottom 21% | 11,739 | | Power density | 203.2 | 215.1 | Weak - bottom 21% | 11,742 | | Temperature coefficient | -0.360 | -0.300 | Weak - bottom 8% | 12,345 | | Weight per kWp | 55.9 | 52.4 | Typical | 10,244 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **-0.360 %/°C temperature coefficient** - Bottom 8% of the N-type 240-440 W segment, against a median of -0.300. Ranked 12,345th in the whole database. - **20.32% module efficiency** - Bottom 21% of the N-type 240-440 W segment, against a median of 21.50%. - **203.2 watts per square metre** - Bottom 21% of the N-type 240-440 W segment, against a median of 215.1. - **Best for:** Residential and BIPV. - **Not ideal for:** Hot climates, tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 340 W - **Efficiency:** 20.32 % - **Voltage at Pmax (Vmp):** 34.00 V - **Current at Pmax (Imp):** 10.01 A - **Open-circuit voltage (Voc):** 41.40 V - **Short-circuit current (Isc):** 10.52 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.360 %/degC - **Temperature coefficient of Voc:** -0.300 %/degC - **Temperature coefficient of Isc:** 0.027 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 60 ### Physical - **Length:** 1665 mm - **Width:** 1005 mm - **Thickness:** 40 mm - **Weight:** 19.0 kg - **Area:** 1.67 m2 - **Power density:** 203.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 83.0 % - **Output after 30 years:** 282 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11739 of 14005 | | Power density | 11742 of 14005 | | Temperature coefficient | 12345 of 14005 | | Weight | 10244 of 14005 | | Warranty | 21 of 14005 | ## Pros - **20.32% Efficiency – Panasonic HIT-Class Performance** - Module efficiency matches the Panasonic HIT.+ N340 (20.3%) and HIT® N340 (20.4%), which have long served as the global benchmark for the premium segment. At the same time, NIVO EXTREME outperforms the comparable JA Solar LKS-6M-340W (17.6%) by nearly 3 percentage points, translating into measurably higher energy yield per unit of roof area. - **30-Year Linear Power Warranty** - The manufacturer provides a 30-year linear power output warranty — 5 years longer than the 25-year standard offered by most Tier-1 suppliers (JA Solar, LONGi, Trina). While a 15-year product warranty is the industry norm, the option to extend it to 20 years through authorized Bruk-Bet installers provides an additional layer of investment protection. - **Exceptional Mechanical Durability** - The module withstands static front loads of 8,000 Pa and wind uplift of 5,400 Pa with as few as two mounting rails, as well as hail impact from a ø 55 mm ball at 122 km/h. These figures exceed the standard IEC 61215 requirements (5,400 Pa / 2,400 Pa), making the series well-suited for demanding installation environments such as mountainous and coastal sites. - **Glass-Glass Construction for BIPV Applications** - The use of ultra-thin, chemically tempered solar glass on both sides of the module enables full building-integrated photovoltaics (BIPV) applications — including roofing, facades, and canopies. The glass-glass laminate eliminates the moisture-susceptible rear EVA backsheet, extending service life under high-humidity conditions as validated by the Extreme Damp Heat test. - **European Manufacturing with Polish Quality Control Standards** - The Tarnów facility employs more than 20 quality control checkpoints, per-cell sorting prior to lamination, and Meyer Burger production equipment. European origin shortens the supply chain, eliminates exposure to EU anti-dumping duties, and facilitates access to European funding programs that give preference to EU-manufactured products. ## Cons - **Low Per-Module Wattage of 340 Wp (as of 2026)** - In 2026, the market standard for residential and commercial installations is 420–440 Wp (e.g., LONGi Hi-MO 6, JA Solar DeepBlue 4.0). To achieve the same system capacity, NIVO EXTREME requires approximately 20–25% more modules than a contemporary 420 Wp panel, resulting in higher BoS costs for labor, wiring, and mounting structures. - **Made-to-Order Production** - According to the manufacturer, modules are produced against specific project orders, which implies longer lead times compared to panels held in distributor stock. This may pose a challenge in emergency replacement scenarios or projects with tight commissioning deadlines. - **Limited Production Capacity and Bankability** - Bruk-Bet's nominal manufacturing capacity is approximately 120 MW/year (PV Magazine, 2017), a fraction of the output of Tier-1 Asian manufacturers (>10 GW/year). Bruk-Bet does not appear on BNEF Tier 1 module manufacturer lists, which may complicate project finance or leasing arrangements for systems above 100 kWp, where lenders typically require modules from recognized bankable manufacturers. ## About this series The Bruk-Bet NIVO EXTREME series is designed for applications where the combination of photovoltaics with lightweight construction and high mechanical strength is crucial. A key advantage is the **ultra-thin, chemically tempered solar glass** used in glass-glass modules - this makes the panel noticeably slimmer while also providing resistance to deformation and sudden loads. This effectively solves the problem of mounting limitations where standard, heavier modules can be problematic. NIVO EXTREME also offers **greater flexibility in integration with buildings (BIPV)** - modules can be incorporated into various types of roofing and lightweight structures, which will be appreciated by investors who prioritize aesthetics and functionality. Depending on the configuration, mono or polycrystalline modules are available, including those with **PERC** technology, which helps maintain stable performance in typical roof conditions. This is a series for those building modern homes, architects, and companies installing systems where **low weight**, durability, and project suitability are important. The modules are also **produced to individual order**, which makes it easier to tailor the solution to a specific project. ## Notable figures - 20.3% module efficiency - 0.8pp better than the \*\*N-type 0-400W\*\* median of 19.5% - At 203.2 W/m² power density, this panel generates 8.3 W/m² more per unit area than \*\*N-type 0-400W\*\* median (194.9 W/m²) - At -0.36%/°C, loses 0.04pp more power per degree than \*\*N-type 0-400W\*\* median (-0.32%/°C) - At 19.0 kg, this panel is 3.0 kg lighter than \*\*N-type 0-400W\*\* median (22.0 kg) - easier handling during installation - In the top 84% for efficiency among all N-type panels ## Questions ### How much does the Bruk-Bet NIVO EXTREME panel weigh, and can it be installed on a lightweight mounting structure? The NIVO EXTREME module in a glass-glass construction with chemically tempered ultra-thin glass (1.1 mm) weighs only approximately 11 kg for the 60-cell variant. This is significantly less than standard aluminum-framed panels of comparable power output. As a result, the series is well suited for lightweight support structures, carports, covered pergolas, and buildings where exceeding the permissible roof load capacity would be a concern. ### Can the Bruk-Bet NIVO EXTREME be integrated directly into a facade or roof covering as a BIPV solution? Yes, the NIVO EXTREME series is one of the few Polish offerings specifically designed for building-integrated photovoltaics (BIPV). Its slim glass-glass construction and availability in custom-order dimensions allow the modules to be adapted to various roofing types and lightweight facades. This solution is frequently chosen by architects and investors who require a visually coherent building appearance without compromising photovoltaic functionality. ### What warranty is provided for Bruk-Bet NIVO EXTREME panels? The manufacturer offers a 15-year product warranty covering manufacturing and material defects, as well as a 30-year linear power output warranty. A 30-year linear power warranty is among the longest standards available on the market and reflects the high durability of the modules — attributable in part to their resistance to light-induced degradation (LID), which is a characteristic advantage of the N-type cell technology used in this series. ### What advantages does N-type cell technology in the NIVO EXTREME offer compared to standard P-type cells? N-type cells do not exhibit light-induced degradation (LID), which in the first hours of operation can reduce the power output of P-type modules by several percent. In practice, this means the NIVO EXTREME delivers its rated power from day one. N-type technology also provides lower temperature coefficients, resulting in better performance on hot, sunny days — conditions typical for rooftop installations in southern Poland. ### Can the Bruk-Bet NIVO EXTREME 340 Wp panels withstand strong winds and snow loads? The NIVO EXTREME series has obtained certification for compliance with IEC 61215:2016 and IEC 61730:2017. The modules are tested to a maximum static mechanical load of 8,000 Pa and wind uplift resistance of up to 5,400 Pa. Under Polish climatic conditions — including snowfall and storms — these parameters ensure reliable long-term performance on pitched roofs without risk of mechanical glass damage. ### Are Bruk-Bet NIVO EXTREME panels available off the shelf, or is lead time required for production? NIVO EXTREME modules are manufactured to order at the Bruk-Bet facility in Poland. This means it is possible to order modules with non-standard dimensions or cell configurations tailored to a specific project; however, the lead time is longer than for panels available from stock. If installation is planned for a specific date, it is advisable to confirm the production and delivery schedule directly with the manufacturer or an authorized distributor. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/bem-340-w-nivo-extreme-ws-09-06-22-1-94b0f1f19df8.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-300MH-72](https://comparepv.com/panel/ja-solar-ns-300mh-72) | 300 W | Cooler, lighter, +3.0 pp | | [PolyCrown Solar Tech NS-300MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-72) | 300 W | Cooler, lighter, +3.0 pp | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, +2.8 pp, -5 yr warranty | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, +2.8 pp, -5 yr warranty | | [Gamko New Energy GKA182M300W](https://comparepv.com/panel/gamko-new-energy-gka182m300w) | 300 W | -40 W, lighter, +2.7 pp | | [Gamko New Energy GKA210M320W](https://comparepv.com/panel/gamko-new-energy-gka210m320w) | 320 W | -20 W, lighter, +2.7 pp | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | Lighter, +2.7 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | +20 W, lighter, +2.7 pp | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | +40 W, lighter, +2.7 pp | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | +40 W, lighter, +2.7 pp | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | +100 W, cooler, +2.6 pp | | [Jetion JT435SYk(B)](https://comparepv.com/panel/jetion-jt435syk-b) | 435 W | +95 W, cooler, +2.4 pp | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | Cooler, +2.3 pp, +10 yr warranty | | [Jetion JT430SYk(B)](https://comparepv.com/panel/jetion-jt430syk-b) | 430 W | +90 W, cooler, +2.1 pp | | [Lina Energy LEPV 400](https://comparepv.com/panel/lina-energy-lepv-400) | 400 W | +60 W, cooler, +2.0 pp | | [Phono Solar NS-360MH-60](https://comparepv.com/panel/phono-solar-ns-360mh-60) | 360 W | Cooler, +1.8 pp, -5 yr warranty | --- Source: https://comparepv.com/panel/bruk-bet-bem-340 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.