High-Performance 125 Watt Polycrystalline Solar Module (UE Series)

Mitsubishi Electric’s photovoltaic modules are engineered for extended use in environments with extreme temperatures and harsh weather conditions. Our panels utilize polysilicon technology and are known for their high reliability, high-efficiency, and low environmental impact. All Mitsubishi solar panels feature a 25-year limited warranty on power output and are designed to deliver you trouble-free electricity for years to come.

Mitsubishi Electric’s original derating design concept reduces the electrical stress of each electrical component by the rated value for actual use time, lowering the product failure rate and ensuring reliability in the long term.

Mitsubishi Electric is dedicated to bringing you the latest in solar electric technology. The state of the art research and development facilities are constantly discovering new ways to improve PV module efficiency and performance to maximize the amount of electricity your solar system can produce. Modules with high efficiency not only make effective use of limited space, but also contribute to lowering cost by reducing the number of modules in use.

Solder-free Cells

The silver electrodes formed on the solar cell surface excel in environmental resistance. This has paved the way to the industry-first introduction of mass-produced “solder-coating less cells” — which, as the name suggests, require no solder coating. This removes lead which is harmful to the human body, while the expanded light reflection effects with the solderless status improve cell efficiency.

Mitsubishi Electric has developed fine grid electrodes for the solar cell manufacturing process, an advance that has effectively expanded the solar cell light receiving area to realize high-efficiency cells.

BSF (Back Surface Field) Structure

Adoption of an optimal BSF structure has broadly improved solar cell efficiency.

Anti-reflective Coating

Use of anti-reflective coating shuts out solar rays that reflect off solar cells, thereby heightening cell efficiency. The newly developed high reflectance back film improves module efficiency by increasing reflection power from 80%* to 90%*. (*evaluated by Mitsubishi Electric)

Cerium-free/High-transmittance Glass

Use of glass that is cerium-free and high in transmittance has defined a new dimension in high efficiency, free of initial deterioration.

Tight Tolerance

Mitsubishi Electric’s state-of-the-art production management system can provide the tightest tolerance of module output power (+/-3%) in the industry. This innovation can be expected to higher output power in your PV system by reducing module string losses. Mitsubishi Electric solar cells have separate connecting tab wiring between the front and back sides. This is an effective step toward optimization of connecting conditions, while curving cell warp to support the move toward thinner solar cells.

High Power Output in Actual Use

Mitsubishi Electric determines the output measurement of photovoltaic modules by using calibrated modules at JRC, a leading European testing institute. We also exercise meticulous controls on the production line, working to ensure that factory-shipment test values exceed the nominal output power for each carton (two modules per carton). These efforts combine to realize high power generation performance in actual use.

Superior Module Frame

Adoption of a structure that ensures ample distance between the bus bar and module frame helps prevent short circuits, insulation deterioration and other problems. It likewise curbs declines in power output caused by dust accumulated in the lower part of modules.

Mitsubishi Electric module frames have been designed with a lower slope of 30% compared to traditional models. This innovation can provide a larger generation of power in cases where the modules are installed at lower angles, by preventing dust from accumulating in the frame area.

Mitsubishi Electric has developed a unique “Protection Bar” on the back side of the solar panel. The combination of high-strength glass and Protection Bar can pass the static load test 5400 Pa of IEC61215 2nd edition. The Protection Bar also easily meets the requirements of 545 grams (1.18 pound) steel ball drop-testing from a height of 1.295 meters (51 inches).

A newly developed high tensile strength frame dramatically improves snow load resistance by enhancing tensile strength between the laminate and module frame. In order to improve water drainage, we added holes on the edge of the frame back. Thanks to this improvement, the potentiality of moss or dirt accumulation and damage by water is considerably mitigated.

For high-corrosion resistance, the module frame features anodized aluminum with clear coating — two pivotal steps toward high-corrosion resistance and reliable use even under truly severe environmental conditions. The "hollow-less" structure frame is engineered with optimum thickness and structure, for improved bending strength.

Four-Layer Structure Back Film

The newly developed PET type back film offers four-layer construction. This design greatly achieves maximum system voltage of 1000V, further improving the environmental characteristics of the module.

Eco-Friendly

Mitsubishi Electric photovoltaic modules reflect a proactive approach to environmental regulations, and the determination to supply outstanding environmentally-friendly products. As a large-scale manufacturer with a keen awareness of our responsibility to the environment, Mitsubishi Electric is committed to the development of cleaner, more efficient manufacturing methods, and actively takes a leadership role. For example, in January 2003 we became the first among Japanese crystalline silicon photovoltaic cell manufacturers to begin volume production of solder-less cells and modules with lead-free solder.

Lead-Free Solder Solar Panel

Mitsubishi Electric has made a commitment to protect the environment. We are proud to be the first photovoltaic (PV) manufacturer to use lead-free solder in our modules. While traditional lead-solder modules use about 860 grams of lead, Mitsubishi Electric modules have 0 grams of lead. Using newly developed silver electrodes that offer superior weatherproofing, Mitsubishi Electric has perfected a technology for producing photovoltaic cells that does not require solder coatings. We’ve even achieved higher PV module conversion efficiency, taking advantage of the new product’s ability to more uniformly reflect the sun’s rays. Traditionally, lead-solder coating has been required to ensure that PV modules are weatherproof and remain moisture-resistant for years on end. By developing environmentally friendly composite materials and manufacturing processes for silver electrodes used on the surface of crystalline silicon photovoltaic cells, Mitsubishi Electric has succeeded in producing cells that do not require a solder coating.

Five percent energy reduction during manufacturing

Mitsubishi's simplified manufacturing methods create a better product while increasing productivity. Reliable, lead-free fabrication techniques that do not use solder coating improve the power efficiency of each individual cell. They also reduce work steps to provide for greater manufacturing yield. Overall, this realizes a five percent reduction in energy use during the manufacturing process.

New Steel Pallet and Other Environmental Standards

Mitsubishi Electric's photovoltaic product manufacturing plant is certified under the ISO 14001 environmental standard, and also features comprehensive water-conservation and recycling measures. We are advancing production operations with meticulous care for the environment. Recyclable steel pallets are used to transport solar modules instead of wooden pallets that break and end up in landfills.

Mitsubishi Electric understands that the key to protecting our planet while improving our lives is to use clean renewable energy, the way nature intended.

Click here for a UE125MF5N specification sheet in PDF format.

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