UHV high efficiency, low unit transmission costs. Conveying the same power, UHV savings save more than a quarter of that of a 500 kV UHV. Moreover, the use of renewable energy can reduce the increasingly hazy haze weather, the value can not be measured. On the occasion of the upcoming UN Climate Summit in 2014, On September 18, Forbes magazine published a signed article entitled "Building a Global Energy Network for Sustainable Development" by China's State Grid Corporation Chairman Liu Zhenya, calling on all countries in the world to cooperate in building Global Energy Internet. Liu Zhenya pointed out in his article that how to protect energy supply and reduce environmental pollution is a dilemma that plagues all countries in the world. Addressing these issues will play a crucial role in saving humanity and riding millions of people from air pollution and climate change. The article holds that UHV transmission technology can solve some problems that have plagued the energy sector for a long time. The first is how to exploit the electricity generated by highly volatile renewable energy sources such as wind and solar energy; and moreover, how to transfer electricity from remote areas to areas of high electricity consumption and ensure that there is not a significant amount of electricity lost. The article points out that China's engineering practice has proved that UHV transmission has the advantages of high efficiency and low transmission cost per unit. Through UHV technology, it can effectively transmit power to 2,500 km and plan to extend it to 5,000 km. In the future, coal-fired power plants can be built near coal sources and away from densely populated areas to reduce emissions and the spread of pollutants. At the same time, solar energy, wind energy and hydro power generation can also be connected to the power grid on a large scale, and can be absorbed in a wider area, greatly reducing the impact of haze and harsh weather, and the value is incalculable. The article pointed out that in the next 25 years, the global population is expected to increase by 2 billion people, the demand for electricity will increase by 90%, and the demand for energy from developing countries is especially strong. Environmental pollution caused by energy emissions and global warming are issues that the world must face together. The article calls for all countries in the world to start multi-party cooperation as soon as possible so as to build a global energy Internet and make use of UHV technology to convert the electricity generated by solar wind in the polar regions and desert regions into clean energy for use in more efficient energy transmission and transactions. Humanity. The following is the full text of the article: Building a Global Energy Network for Sustainable Development World leaders gathered in New York this week to discuss a dilemma that plagues all governments. That is, how can we ensure energy supply and reduce environmental pollution? Although the earth is rich in clean energy, sending these energies to densely populated areas hundreds or even thousands of miles away is not easy. What if we were able to bring clean energy closer to ours and help the government reduce emissions while it supplies electricity to the cities? That is exactly what the new technologies developed in China are intended for. This technology is called UHV transmission technology. It can solve some of the problems that have long plagued the energy sector. The first is how to exploit the electricity generated by highly volatile renewable energy sources such as wind and solar; and how to transfer electricity from remote areas to areas of high electricity consumption and ensure that there is not a significant amount of electricity lost. At present, most coal-fired power plants are located near the cities, which have also caused serious air pollution while supporting economic development. Today, the energy we rely on relies heavily on air pollutants and causes respiratory problems such as asthma. Addressing these issues will play a crucial role in saving humanity and riding millions of people from air pollution and climate change. From a physics and economics point of view, all transmission systems have loss problems, the longer the transmission, the more losses. Therefore, economic and technical reasons limit the transport distance of most transmission systems, forcing cities to rely on more recent sources of electricity. UHV can help China to rely on this type of energy. UHV technology increases AC transmission voltage to 1000kV and DC transmission voltage to ± 800kV and above. Compared with conventional EHV transmission, transmission voltage can be greatly reduced.