2013年5月21日星期二

Japan plans to provide low-interest loans for residential rooftop solar


According to the Nihon Keizai Shimbun reported that the Japanese Ministry of Economy plans to borrow residential roof space for solar energy development companies to provide low-interest loans. The newspaper quoted Trade Minister Toshimitsu Motegi as saying that the province plans to Development Bank of Japan and other government financial institutions to provide loans. The newspaper revealed that, Motegi will be held tomorrow on industrial competitiveness conference to announce the plan.

Under the proposal, these companies will sell the family installed photovoltaic inverter on the roof generate electricity. Homeowners will receive 10,000 yen per year (about $ 97) to 20,000 yen for rent. Merfert: Middle East showing the unique business challenges, and the two most common problem is that the performance of the components in the environment of high temperature and stains. If you are already in Dubai to spend a summer day, or witnessed the dust storms of the central region of Saudi Arabia, you will see the technical performance of these products will have an impact.

On the temperature of the photovoltaic power generation system performance impact on the temperature coefficient of the photovoltaic solar cell panel modules, it shows the temperature dependence of the power performance. As the operating temperature increases, the efficiency loss of all semiconductor devices have become more serious, however, compared with the conventional silicon technology, because cadmium telluride low temperature coefficient, which provides us with a significant advantage in energy production. Cadmium telluride temperature coefficient of -0.25% / ˚ C, and a temperature coefficient of silicon -0.45 to -0.5% / ˚ C

. Photovoltaic power plants to generate electricity only in the sunlight, the typical components of the operating temperature range of 50-70 ˚ C, much higher than test standards 25 ˚ C. This is a typical hot desert climate means that every watt of 9% additional energy output. The dust can also affect the performance of the PV system. The dust deposition factors affecting the PV modules is well documented, our on-site measurement stains. The device also been strictly sandblasting, environmental sealing, corrosion resistance test.

While we do not need to clean the U.S. PV array, where each of precipitation fouling can alleviate the loss. However, in the Middle East, India and parts of Africa, we do need to provide cleaning solutions according to the availability of water. As a source of electric power generation, compared with other techniques, the PV water consumed less. We have been committed with a dry, mechanical solutions to minimize the amount of water used.

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