New energy (NE): also known as unconventional energy. It refers to various forms of energy other than traditional energy. It refers to the energy that has just begun to be developed and utilized or is under active research and needs to be promoted, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy and nuclear fusion energy.

Solar energy generally refers to the radiant energy of sunlight. There are three main forms of solar energy utilization: photothermal conversion, photoelectric conversion and photochemical conversion. In a broad sense, solar energy is the source of many energy on the earth, such as wind energy, chemical energy, water potential energy and other energy forms caused or converted by solar energy. The methods of using solar energy mainly include: solar cells convert the energy contained in the sunlight into electrical energy through photoelectric conversion; The solar water heater uses the heat of sunlight to heat water, and uses hot water to generate electricity. Solar energy is clean and environment-friendly, without any pollution, and has high utilization value. Solar energy has no shortage of energy. Its various advantages determine its irreplaceable position in energy replacement.

Photovoltaic panel module is a power generation device that generates direct current when exposed to sunlight. It consists of thin solid photovoltaic cells made of almost all semiconductor materials (such as silicon). Since there is no active part, it can be operated for a long time without causing any loss. Simple photovoltaic cells can provide energy for watches and computers, while more complex photovoltaic systems can provide lighting for houses and power grids. Photovoltaic panel modules can be made into different shapes, and the modules can be connected to generate more power. Photovoltaic panel modules will be used on the roof and the surface of buildings, and even used as part of windows, skylights or shielding devices. These photovoltaic facilities are usually referred to as photovoltaic systems attached to buildings. Major solar cell manufacturers in China are encountering rare "rainy days". Due to the export of more than 95% of the production capacity and the excessive reliance on the European market, domestic solar cell enterprises have been disturbed by several negative factors in recent months: European debt crisis, the sharp fall of the euro, and the reduction of solar energy subsidies in Europe. These series of adverse factors indicate that domestic solar cell manufacturers have both immediate concerns and long-term considerations. However, domestic enterprises that are good at responding are trying to control operational risks from both cost and demand. In 2009, the domestic capacity of solar cells was about 2.4 million kilowatts, but the domestic installed capacity of solar power generation was only 120000 kilowatts. 95% of the capacity was exported, of which Europe was the most important market. In the past few years, Europe has been the focus of the world's solar photovoltaic power generation. In 2009, the newly installed capacity of Germany, Spain, Italy and the Czech Republic exceeded 4.2 million kilowatts, accounting for more than 60% of the world. Since the beginning of the year, the debt crisis broke out in Greece, Spain and other euro zone countries. The exchange rate of the euro fell sharply. The exchange rate of the euro against the US dollar fell by more than 12%, and the domestic solar cell manufacturers suffered serious losses.

Modern solar thermal technology aggregates sunlight and uses its energy to generate hot water, steam and electricity. Apart from using appropriate technologies to collect solar energy, buildings can also use the light and heat of the sun by adding appropriate equipment in the design, such as giant south windows or building materials that can absorb and slowly release the heat of the sun.

Development direction of new energy vehicles

As a means of transportation, cars emit a large amount of carbon, nitrogen, sulfur oxides, hydrocarbons, lead compounds and other air pollutants every day. They are important sources of air pollution and bring serious harm to human health and the ecological environment. Energy saving and emission reduction is the eternal theme of the development of the automobile industry. Continuously strengthening energy saving and emission reduction has become an urgent need for the sound and rapid development of China's economy.

In developed countries, automobile determines oil demand and is also a key factor affecting greenhouse gas and harmful gas emissions. To achieve environmental protection goals, it is necessary to reduce oil consumption and gas emissions of automobiles. However, on the other hand, the automobile is a pillar industry and a basic means of transportation. Governments of all countries should maintain the development of automobiles to promote economic development and the improvement of people's Living welfare. The development of energy-saving and environment-friendly vehicles can reduce oil consumption and protect the atmospheric environment while maintaining the growth of vehicles. Therefore, governments of all countries generally regard the development of energy-saving and environment-friendly vehicles as an important part of their energy and environment policies and the sustainable development of the automobile industry.