Solar energy and 0 light heat charge

Japan has demonstrated its future strategic value by developing solar derivative products/Caijing National weekly Tokyo correspondent is Liu Hua in Japan, as long as you install solar power plants at home, you can get a large subsidy from the central government to all levels of local government. If the equipment has a slight surplus, you can sell the excess power to the power supply company at twice times the market price. In about 10 years, you will be able to recoup the cost of the equipment, and you will be able to enjoy the "electricity sales" every year.　　This is Japan's basic practice for popularizing solar energy. In technology, solar power generation in many countries have a great breakthrough, but because of cost, and other reasons, has not been popular in the family.　　In Japan, solar equipment has begun to enter large numbers of households as a result of subsidies and supporting regulatory policies at the national and local levels, as well as infrastructure efforts by power companies. 2009, Japan domestic sales of solar power equipment power more than 600,000-kilowatt, of which residential equipment power more than 550,000-kilowatt. This is about one-fold higher than in 2005.　　Given that most of the solar power plants installed in Japan are under 3-kilowatt, this means that about 2009 15~25 residents have installed such equipment. At present, the installation of a set of 3-kilowatt power solar equipment, the average cost of about 1.8 million ~220 million yen. For ordinary families, this is not a small number.　　To this end, in 2009, the Government of Japan introduced a new system for home solar equipment grants to subsidize 70,000 yen per kilowatt, and for 10 years the power company was obligated to acquire the remaining electricity produced by home users, and the purchase price was set at 48 yen per kilowatt-hour. In addition, local governments at all levels also offer high subsidies to home users. Sls County is a successful place for Japan to promote home solar equipment.　　Here, the family can receive 100,000 yen subsidy from the county as long as it installs more than 1-kilowatt kw of solar power equipment. These incentives have had an immediate effect. "Caijing National weekly" reporter in the interview to see, here along the farmers roof, many are equipped with various kinds of solar panels, including old houses and new equipment, obviously in recent years because of the new policy and purchase.　　However, some of Japan's opponents of the current subsidy policy believe that the power companies to buy electricity from households at high prices, may be a disguised incentive to increase electricity prices, resulting in the current inability to install solar power equipment, the burden of household electricity costs heavier. Japan in the development of household solar power equipment industry, attaches particular importance to supporting technology and derivative product development, as well as supporting the construction of facilities.　　On the one hand, it can guarantee the residents ' families to use the equipment, on the other hand, it broadens the influence of the solar energy industry, and in some sense enhances the "multiplier effect" of the industry. For example, in order to seize the solar business opportunities, the Japanese construction industry is currently developing "0 light and heat" housing ("light and heat costs" that is, lighting heating costs). Japan's big construction enterprise and housing Company announced in mid-August that it will start selling new smart home products in the spring of 2011 (JapanHome buyers often buy land from the form of building houses. The house is equipped with high-capacity lithium-ion batteries that can store solar panels on sunny days for use in rainy weather. LED energy-saving lighting in the house, outside the house is equipped with wind speed sensors, according to outdoor wind speed to remind the owner whether the need to open windows and turn off the air-conditioning. Solar power plants can also be charged specifically for electric vehicles.　　This kind of house to a large extent can achieve energy "self-sufficiency", the key part of its products lithium batteries, as well as companies such as Toyota participation. Because the technology has something in common with the electric vehicle industry, it can take full advantage of Toyota's rich experience and advanced technology in this area.　　In the future, when residents of other countries upgrade their homes in the areas of "informatization" and "energy conservation and Environmental protection", Japan's advance research and market cultivation may play an important role today. Another example, in supporting infrastructure construction, if a large number of domestic solar equipment access to the grid, in the event of weather changes in the simultaneous generation or stop power generation, will cause a drastic change in power grid voltage, thus affecting the quality of power supply. To address this problem, Tokyo Electric power and other major power companies have begun to build the next generation of transmission lines, plans to spend 600 billion yen (about 47 billion yuan), in the current grid installation of more than 100,000 voltage control equipment, and 50 million home meters installed intelligent voltage sensors, To assist the voltage control equipment to stabilize the entire grid current.　　In this process, the Mitsubishi Heavy industry, Hitachi manufacturing and other electrical and mechanical enterprises, such as power grid control and other information, software companies will receive a large number of orders, and take the opportunity to test the next generation of power grid technology. The Japanese government hopes to achieve the target of "28 Million-kilowatt" solar power generation by 2020. This means that millions of or even nearly millions of households in Japan will install solar power plants, which contains huge business opportunities. Japanese solar energy enterprises in the use of this "base" to cultivate internal strength, how will participate in international competition? Will the Japanese market, which has always been closed, give other countries a chance to participate? is a question worth observing.