What is Photovoltaic Energy?

Photovoltaic energy converts solar radiation into electrical energy based on the principle of photovoltaic effect. Photovoltaic energy has the advantages of no pollution, no noise, low maintenance cost, long service life, etc., and has developed rapidly in recent years.

Photovoltaic energy systems generally include

According to the 13th Five-Year Plan for solar energy development issued by the National Energy Administration (Guoneng Xinneng [2016] No. 354), as of the end of 2015, the cumulative installed capacity of solar power in the world reached 230 million kilowatts, and more than 53 million new installations were made that year. Kilowatts, accounting for 20% of the world's new installed power generation capacity. From 2006 to 2015, the average annual growth rate of photovoltaic power generation exceeded 40%, which has become the world's fastest-growing energy variety; solar thermal power generation has installed 4 million kilowatts of new power within 5 years, entering the initial stage of industrialization development. The cumulative installed capacity of photovoltaic power generation in China increased from 86 million kilowatts in 2010 to 43.18 million kilowatts in 2015, and 15.13 million kilowatts were newly installed in 2015. The cumulative installed capacity and annual new installed capacity rank first in the world. The application of photovoltaic power generation has gradually formed a pattern of common development, centralized and distributed development in the east, middle, and west. Photovoltaic power generation, agriculture, aquaculture, ecological governance and other industries are continually innovating, and they have entered a new stage of diversified and large-scale development.

A lot of research on key technologies of photovoltaic power generation has been carried out at home and abroad, and some new developments have been obtained. The main technological developments are summarized as follows: ^[3]

In 2015, the global photovoltaic market scale reached more than 500 billion yuan, and about 3 million jobs were created, which has made outstanding achievements in promoting the development of the new global economy. Many countries regard the photovoltaic industry as a strategic emerging industry and new economic growth point to focus on, and have proposed related industry development plans, and continue to increase support for photovoltaic technology research and development and industrialization, and the global photovoltaic industry maintains a strong growth momentum. .

During the "Twelfth Five-Year Plan" period, China's photovoltaic manufacturing scale has a compound growth rate of more than 33%, an annual output value of 300 billion yuan, and nearly 1.7 million job creations. The photovoltaic industry has shown strong new momentum for development. In 2015, polysilicon output was 165,000 tons, accounting for 48% of the global market share; photovoltaic module output was 46 million kilowatts, accounting for 70% of the global market share. The international market of China's photovoltaic products continues to expand, occupying a dominant position in both traditional European and American markets and emerging markets. Most of the key equipment for photovoltaic manufacturing in China has been localized and smart manufacturing has been gradually implemented, leading the world in the world.

The National Energy Administration's Department of New Energy forwarded the "Letter on the Development of a Poverty Alleviation Pilot Implementation Plan" (hereinafter referred to as the "Outline"), which provided a reference basis for continuously advancing and improving the progress of photovoltaic poverty alleviation work and preparing the implementation plan for photovoltaic poverty alleviation in various places . Among them, the supporting funds and fiscal and taxation policies can be referred to as follows: local government grants 35% initial investment subsidy to household and agricultural facilities-based photovoltaic poverty alleviation projects, 20% initial investment subsidy to large ground power stations, and the state makes initial investment in equal proportions Subsidy allocation; household and agricultural facilities-based photovoltaic poverty alleviation projects have a loan repayment period of 5 years and enjoy full bank discounts, and large ground power stations have a loan repayment period of 10 years and enjoy bank discounts ^[4]