Toshiba set foot in residential solar cell systems business

Toshiba will be April 1, 2010 by the United States SunPower start selling crystals If the solar cell modules comprising systems residential solar Vostro 1520 battery Vostro 1710 battery batteries. Toshiba said that “to promote all-electric technology and intelligent network services, has decided to set foot in the field of solar cell systems residential. Also plans to sell in the future with the company’s lithium-ion rechargeable “SCiB” and intelligent energy meters and other combinations of solar cell systems.

Toshiba will sell the systems residential solar cell, including regulation modules of solar energy (efficiency of energy conversion of 94%), and displays color, and any other materials, sub-contracting. Vostro 1720 battery Vostro 2510 battery

One, the solar cell modules SunPower “SPR-210N-WHT-J” is characterized by cells is module conversion efficiency as high as 21.5%. “In today’s solar cells have been introduced to the highest level” (Toshiba). In the use of cells monocrystalline If at the same time, only in the back of all thanks to the use of electrodes on the rear contact structure to increase the size reached by light. Performance Module conversion of 16.9%, the module output power up to 210W. G5266 HD438

Back contact structure, benefits not only by improving the conversion efficiency. As the electrode is not in the surface, the solar cell electrode parameters are not reflected glare. The construction industry that has “solar cells on the surface of the electrode are designed to work” calls, such a structure solves this problem. KD186 NF343

SunPower solar modules in the Japanese domestic market, it seems that manufacturers of solar cells will be a Japanese national strategy to avoid creating small impact. Referred to in Japan before high conversion efficiency solar cells, tends to think “Electric Sanyo HIT (Heterojunction with Intrinsic Thin layer) solar cells.” Sanyo Electric and SunPower have learned to compete in the highest conversion efficiency. On the structure of contacts back and Kyocera also plan to make public in a multi-crystalline solar cells if used in products. RN873 Y6142

IBM study of conventional materials to product solar cell technology

Documents published in newspaper articles, said it was possible with conventional materials, a relatively efficient manufacturing of solar cells. Such cells may be from 9.6% of solar energy into electrical energy, the photovoltaic conversion efficiency higher than 40% of today’s technologies. ThinkPad R50 battery ThinkPad R51 battery

This conversion efficiency is much higher than silicon cells available on the market, and even comparable to the efficiency of solar cells in thin layers. IBM’s use of traditional materials for the manufacture of solar cells, such as copper, zinc, tin, sulfur or selenium. IBM said that solar energy technologies used in existing equipment often limited its development.

Companies in the solar industry announced they were using cadmium and tellurium thin-film batteries. GE also plans to begin selling next year, batteries cadmium telluride material. Some small companies like Nanosolar, HelioVolt and Miasolé in the production of copper, indium, gallium and selenium solar cells made of alloy material. ThinkPad R52 battery ThinkPad T40 battery

IBM researchers Teodor Todorov, Kathleen Reuter, and David Mitz that the defects mentioned above the battery is to use either the raw materials are scarce, or the impact on the environment. This means that these batteries need to consider the environmental costs. TJWatson Research Laboratory IBM Thomas Theis, director of physical sciences, said: “Of other equally effective battery contained in either very expensive or impact on the environment, or not much room for further improving the efficiency, which makes their commercial scale and large-universal access has become difficult. ” ThinkPad T41 battery ThinkPad T42 battery

Compared to conventional batteries, the benefits of thin-film batteries are to use the equipment is relatively low. IBM solar cells can be used to produce manufacturing techniques at high speed, such as “Rolling Manufacturing Technology” (roll-to-roll manufacturing). U. S. National Laboratory for Sustainable Energy researcher Matthew Beard participated in the research project of IBM, this technology is a breakthrough. ”

Scientists expected that if the technology can achieve a breakthrough, get 12% of the photoelectric conversion efficiency, resulting in economic costs to completely replace the products of existing solar energy. ThinkPad T43 battery ThinkPad T60 battery