Experts at home and abroad discuss the future development trend of global energy industry and rush to 100% renewable energy

"The real challenge in the 21st century is to achieve 100% renewable energy." Chu Diwen, a Nobel Laureate in physics and a professor at Stanford University, said.            With the increasingly serious global energy and environmental problems, energy reform has become the common demand of all mankind. In recent years, the global energy industry has obviously shown a trend of "energy electrification, power cleaning, and significantly increased the proportion of scenery". However, some experts said, "our progress is still too slow."            At the 2019 international clean energy conference, which opened in Beijing on October 27, more than 500 experts and scholars launched cross-border exchanges with a view to jointly promoting the sustainable and rapid development of clean energy.            Immediate challenges            "Historically, when the climate rises by 1 ℃, the sea level will rise by 6 to 9 meters. If you have a real estate in Pudong, it's not a good thing to have six to nine meters, which means a lot of buildings will be submerged. "            "If beef cattle and cows from all over the world are combined into one country, this' country 'emits more greenhouse gases every year than any other country except the United States and China."            There are many vivid cases in Chu's report, but behind the humour is the reality.            Forest fires, droughts, floods, extinction Climate change caused by greenhouse gas emissions is posing a serious challenge to every country and everyone on earth. The 2015 Paris climate conference reached an agreement to control the global average temperature rise within 2 ℃ compared with the pre industrial level, and strive to control the temperature rise within 1.5 ℃.            According to calculation, if we want to keep the temperature rising below 2 ℃, the emission of carbon dioxide must be lower than 2900 tons. According to the current emission growth rate, it will reach this level in 2035.            "We are moving too slowly." Daniel Kammen, a Nobel laureate and professor at the University of California, Berkeley, said, "moreover, it is not enough to achieve the goal of" 2 ℃ "only by complying with the Paris Agreement. We need to double our technological innovation to advance from the goal of" 2 ℃ "to the goal of" 1.5 ℃ "            Irreplaceable cooperation            From 2000 to 2017, California's GDP grew by 60%, population by 20%, greenhouse gas emissions decreased by 8%, and greenhouse gas emissions per unit of GDP decreased by 40%.            The "California experience" shared by the California Energy Commission of the United States was evaluated as "the experience of all mankind" by experts present            "California experience" is a combination of technological innovation and refined management, including the solidification of carbon generated by transportation, industry, natural gas and electricity, as well as the placement of large screens in each building to show power consumption.            California's climate bill calls for 100% renewable energy by 2045. Kammen believes that to accelerate towards such a goal, we need to learn from China's practical experience in the development of electric vehicles.            "Without cooperation with China, many of our projects will not work." Kammen has repeatedly stressed that China and the United States are the world's largest energy users, big emitters, but also the biggest innovators in clean energy. In the process of clean energy revolution, it is necessary for China and the United States to carry out in-depth and close cooperation.            The future together            As one of the fastest-growing renewable energy countries, China's installed capacity of wind power has increased by 15 times, and the installed capacity of photovoltaic power has increased by 1740 times in the past decade. The cumulative installed capacity of wind power and photovoltaic power ranks first in the world.            However, a large number of wind and light abandonment has become a major bottleneck restricting China's energy transformation and development. When the proportion of new energy in China's production capacity is increasing, how to effectively absorb this part of energy and let energy play its due role is the next problem we must face.            Liu Jizhen, academician of the Chinese Academy of engineering and vice president of the Chinese society of electrical engineering, put forward seven countermeasures, such as improving the capacity of flexible peak load regulation of thermal power, building transmission channels and flexible smart grid, developing and promoting new energy active support technology, and improving relevant policies and market mechanism.            Chou Baoxing, director general of the State Council and director of the China Urban Science Research Association, proposed that under the initiative of clean energy transformation and "one belt and one road" initiative in China, it is recommended that the large-scale development of solar energy in Qinghai Tibet region should be launched, and the clean power supply through the UHV grid will not only meet the demand for electricity in the central and eastern parts of the region, but also accelerate the formation of an internationally competitive new energy industry in China.            "The development of clean energy in China is not only for China, but also for the world to provide technology, equipment and services, and to promote green, low carbon and sustainable development through the construction of a green" belt and road ", and constantly promote energy strategy transformation around clean energy technology. Shu Yinbiao, President of China Electrical Engineering Society and chairman of China Huaneng Group Co., Ltd., concluded.