The 2015 world hydropower conference is being held in Beijing, and hundreds of experts and scholars from around the world are working on the sustainable development of hydropower.

"The total installed capacity of China's hydropower plants, including pumped storage power stations, is expected to reach 660 million kilowatts by 2050, with hydropower generating 2.19 trillion kilowatt-hours of electricity annually.At that time, the technological development rate of China's hydropower resources will reach 80%.To reach the current average level of developed countries."On May 20, zhang boting, deputy secretary-general of the China society of hydropower engineering, told the world hydropower conference.

Hydropower installed capacity in 2014, according to the historic breakthrough 300 million kilowatts of power, water and electricity generation breaks through 1 trillion KWH, which means that by 2050 China's hydropower installed capacity and power generation are based on the existing double.How to realize sustainable development of China's hydropower development is a hot topic during the general assembly.

Future hydropower development is more ecological and environmental protection

"In the future, the goal of hydropower development in China is certainly to achieve sustainable development, and I think the solution will mainly include relocation and environmental protection."Says YanZhiYong, chairman of China electric power construction group co., LTD., such as the guarantee of resettlement at the same time, clear the government and enterprises also need to further research on immigration, liability problem in the process of urban infrastructure construction.Recently, there have been a number of plants, which have been far more expensive than construction projects, which could make hydropower development uneconomical.

Huadian group co., LTD., vice general manager of jian-ling deng believes that we should be in accordance with the "3 e" (environmental protection, economy, efficiency) principles to evaluate projects, more standing in the interests of the people, more standing in the perspective of the development of local economy and ecological priority to consider new river development, make our hydropower development coordinated with ecological environment, and promote local economic and social development.

"The development of hydropower, whether it is the protection of the ecological environment or the promotion of more secure development, requires technological innovation."International dam committee honorary chairman jia said, combined with major projects of technological innovation will be impressive, such as China's three gorges, the hoover, such as engineering, technology innovation has a much more special, there are much more special experience in environmental protection, therefore, the international commission on DAMS was also awarded for these engineering international milestone engineering award, for the future construction of the same kind of engineering has special important reference value and significance.

Jia Jin survive, according to the three gorges of the sediment problems used to be controversial, some people even think that is a major ecological problems, but based on a lot of research and technology development, the present running situation shows that the three gorges reservoir sediment can realize the balance of 300, much better than expected design.Meanwhile, new equipment can be developed to clean up the sediment at 1,250 tons per hour in 100 meters of water.

Explore and upgrade existing hydropower efficiency

In the process of current hydropower development and utilization, how to improve the whole river basin water resources allocation efficiency, reduced the is also the focus of attention, such as the delegates are discussed.

"The problem of water abandoning is mainly two. One is the mismatch between the construction speed of the power grid and the construction of hydropower stations, and the other is the problem of water and electricity.", deputy general manager of China guodian group Xie Changjun said, such as the group has more than 700 kilowatts of hydropower in sichuan at the same time, also have a large number of thermal power, and the efficiency of thermal power is very poor, the unit using hours is low, the future wants the government to formulate some policies to solve this problem.

In the process of hydropower development, huadian group pays more attention to the rolling development and optimization scheduling, which is a better demonstration in the industry.

"We have achieved a cascade of drainage in basin development, and have formed a watershed water center to connect with the grid.Through the information of remote sensing, remote control, remote adjustment, make each cubic meter of water in the basin, can play well benefit both flood control and shipping requirements, truly achieved the biggest benefit of cascade hydropower stations.Deng jianling said.

"A single hydropower station in the basin is problematic if there is not a whole concept."Xie Changjun said, it is suggested that the central government should strengthen coordination, the hydropower output to co-ordinate economic interest relationship between province and hydropower receiving, secondly, to coordinate the relationship between the upstream and downstream provinces.In the process of energy restructuring, hydropower, wind power and solar power have all become important forces.

Yan zhiyong believes that the hydropower peak capacity will be further developed in this process.

YanZhiYong, according to new energy power generation the randomness of the need to adapt to power system, and water and electricity should give full play to its characteristics of flexible scheduling, the entire renewable energy or non-fossil energy "family" together, form a resultant force, promote the given, so as to promote energy structure adjustment.

"At present, we have more than 100 million kilowatts of wind power installed, and the solar pv system has reached 30 million kilowatts, which has been developing very fast.This also raises higher requirements for hydropower development.National energy administration of new energy and renewable energy division deputy director Shi Lishan said, hydropower development to a very important period, through the flexible scheduling hydropower, compensate for wind, solar power generation, the future of this benefit will be better.

(author: cao hongyuan feng yijun)