PV relevant national energy policy Article IV State Council department in charge of the country distributed PV planning guidance and supervision; local energy authorities in charge of the energy sector under the guidance of the State Council, responsible for the area of ??distributed photovoltaic power generation planning, supervision and management of construction; National Energy Board the agency responsible for the area of ??distributed PV planning and policy implementation, and network operation, and a fair market operational safety supervision photovoltaic effect hypothesis light shines on the solar cell and the light at the interface layer is receiving the small solar power stations, photons having sufficient energy can inspire from covalent bond P-type and N-type silicon in the silicon electrons, resulting in the onset of electron - hole pairs. Interface layer adjacent electrons and holes in the compound before, are respectively the results to each other via the space charge field. Electrons and holes to N region positively to a negatively charged P area sports. Charges via solar power projects are the interface layer, the onset of an outward testable voltage between the P area and N area. Then you can add the electrodes on both sides of the wafer and access to a voltmeter. Of crystalline silicon solar cells of solar power, typical values ??for open-circuit voltage 0.5 ~ 0.6V. Light at the interface layer attack via electron - hole on the more current increases. Interface layer receiving the light, the more the area of ??the interface layer, i.e., the larger the battery, the current in the solar cell comprising greater. Sun light in the semiconductor pn junction to form a new hole - electron pairs solar power, in the role of the pn junction electric field, holes from the n region to the p region, the flow of electrons from the p region n area, connected to the circuit after forming current. This is the photovoltaic solar cell works. Solar lighting _ day-solar power (certified) _ Henan solar power provided by the Wuhan days Hui Technology Co., Ltd. giant. Wuhan Tian Hui Ju Technology Co., Ltd. (www.thjnkj.com) (www.thjnkj.cn) is a leader in Wuhan, energy-saving equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. In day-solar power leadership with the staff warmly welcome all inquiries negotiations to create day-solar power a better future.