PM Wen Comments on China's Wind Power Industry with the Largest Installed Capacity in the World

China's integrated wind power had reached 52.58GW by this June. With that capacity, China surpassed US and became the country with the largest wind power capacity in the world. The dispatching capacity also topped 50.26GW, which makes SGCC the grid with most extensive wind power of the fastest growth.

China has paid great attention to the wind power development, and makes it a strategic measure to reform the energy structure and generation in order to build a safe, stable, economic and clear modern energy industry. Since the 11th Five-Year Plan, after the implementation of Renewable Energy Law which determines relating guidelines that support regional electrovalence, expense allocation, and integration priority, to name a few, China's wind power industry has improved its growth, scale and technology, and made remarkable achievements in the world.

China had newly installed the wind power capacity of 50GW since 2006, a huge leap from 2GW to 50GW that took US and Europe about 15 years to accomplish, whereas China only spent five and half years on it. While growing fast, SGCC has been steadily improving its management on the wind power, which is now leading in the world. So far, the wind power in East Inner Mongolia, West Inner Mongolia, Jiuquan and North Hebei was accounted to 22%, 21%, 20% and 16% respectively, comparable to Germany's 17% and Spain's 21%. And the daily wind power generation in East Inner Mongolia, West Inner Mongolia and Gansu reaches 72%, 28% and 26% respectively to its own power generation, which were advanced in the world.

Premier Wen Jiabao, member of the Standing Committee of the CPC Central Committee, congratulated SGCC on August 13th. He affirmed the company's achievements on strictly following the policies and working hard on a solid foundation and key links for the wind power development, so as to effectively tackle all kinds of difficulties. All these efforts made China the country with the largest integrated wind power in a modest time. Premier Wen encouraged the company to keep going and continue to improve its system and policy, enhance its management, promote the technology and industry upgrading, and build up a platform to exploit, allocate and operate wind power, solar power and other new energies. He expected SGCC to make even greater contribution to China's long-term, stable, clean, and sustainable new energy development. Vice Premier Li Keqiang, Vice Premier Zhang Dejiang, both members of the Standing Committee of the CPC Central Committee, and Mr. Ma Kai, member of the State Council, all sent their congratulatory messages along with their expectations to the company.

The SGCC held a meeting on 20th August to study the comments among its staff. Upon the occasion, SGCC came out with a plan for further implementation in the light of the company's situation. The plan covers all kinds of aspects, including reform development, stability and quality service, to ensure the company's healthy and rapid development. Most staff were motivated to follow the spirit, determined to push forward the development transformation of the grid and the company, and make more contribution to China's energy industry. They will put it in actions to live up to management' concerns, and to welcome the 18th National Congress of CPC. 

Wind Power in Full Swing

Power grid is an essential sector for the wind power development. In the years when wind power is growing very fast, SGCC has been working hard to serve the wind power development as its key political and social responsibility, solve difficulties during the process, and boost a safe and healthy development of the wind power.

In the first place we ensured the wind power integration timely. Since 2006, SGCC has invested 45.8 billion yuan in power grid construction, building power lines of 25 thousand kilometers to integrate wind power with 420 new or expanded substations. It has established a lot of important projects, such as the 750KV wind power base in Jiuquan of Gansu province. The company also set up a supervision system covering 26 provinces, regions and municipalities and 570 wind farms, and invested in 14 dispatching entities for wind power prediction systems to monitor, forecast and control wind power generation. SGCC fully utilized the 13-circuit 500kV lines of East Inner Mongolia-Northeast Grid, 4-circuit 500kV lines of West Inner Mongolia-Beijing, Tianjin and Tangshan Grid, and absorbed 50% wind power generated in east Inner Mongolia from Heilongjiang, Jilin, and Liaoning during peak time. While the Beijing, Tianjin and Tangshan Grid took one third of the wind power in west Inner Mongolia, maximizing wind power efficiency.

In the second place, we laid a solid foundation for wind power development. We completed the transmission plan for 8 10GW wind power bases. Key technical research has also been carried out on large-scale wind power integration as the industry was developing so fast but without existing standards in its early stage. The company drew up 22 corporate standards, and released Standard Design of Wind Power System, Technology Provision of Wind Power Integration, Regulation of Wind Power Dispatching and Management, thereby pushed forward the formation of national and industrial standards in the sector.

In the third place, we extensively optimized wind power allocation. It is a worldwide difficulty to reduce wasted wind energy. The wind power resources in China are concentrated in large scale capacity, far away from load centers. The power structure in the northeast, northwest and north China is not of much variety, which results in insufficiently flexible peak shaving. Wind power cannot be accommodated locally. To solve this problem, SGCC decided to build large bases to integrate into a grand power grid. It accelerated the development of a grand grid, strengthened unified dispatching, and promoted cross-regional transmission to accommodate the wind power in the northeast, northwest and north China nationwide. The wind power in that region began its scaled development and efficient utilization. 

Finally, we pushed forward technological progress and industry upgrading. SGCC has undertaken 257 research programs for technical innovation, and made systematic research in key techniques for new equipments such as large scale battery energy storage, and 5MW wind turbines. SGCC has established  the National Wind Power Technology Research and Testing Center. Its world-advanced testing capability provides a strong experimental and technical support to equipment manufacturers. SGCC has provided on-site technical support for more than 300 times with over 1000 technicians involved, and held more than 600 training courses for nearly 10 thousand management staff of wind farms. The National Wind/PV/Energy Storage and Transmission Joint Demonstration Project built by SGCC is the first comprehensive new energy project in the world integrating wind power, PV power, energy storage system and smart transmission. The company has grasped cutting-edge controlling technology of new energy generation and transmission, providing an experiment platform for all kinds of wind turbines in China and a new channel to comprehensively exploit and deliver wind power and solar power from our country.

Building a Strong & Smart Grid to Promote the Sustainable Development of New Energy

China's wind power still faces new challenges along with its scaled development despite great achievements in the sector.

China will generate 100GW wind power by 2015 and construct 8 10GM wind power bases in Hami, Jiuquan, west Inner Mongolia, east Inner Mongolia, Hebei and Jilin, according to the national layout. By 2020, the national installed wind power capacity will exceed 200GW, while 80% will concentrate in the northwest, northeast and northern China with limited accommodation capability, far away from load centers. It indicates that China is not able to integrate wind power by 10kV or below distribution system to develop this sector, as U.S. and Spain have done to integrate their scattered wind resources.

What's more, wind power is random and periodical. Large-scale integration needs rapid peak control (bumped storage, gas-fired power station, and ect.) for the safety of the power grid. In the few countries that have large installed wind power capacity, Spain has electric power sources for rapid peak control up to 34%, 1.7 times of its wind power sources, and the US 47%, 13 times of its wind power sources. The single structure in the northeast, northwest and north China has less than 2% power sources for rapid peak control, inadaptable to the demand for more vigorous development of the wind power industry.

Faced with challenges, we should accelerate the construction of a Strong & Smart Grid of various voltage levels backboned by UHV grids, exploit and deliver the rich wind, solar, and coal-fired power resources in the northwest, northeast and northern China, and thus optimize the energy allocation nationwide. It can make up to the insufficient power for peak shaving in the area and upgrade wind power accommodation as well as the carrying capacity of power grids. We have mastered the core technology with independent intellectual property rights and are able to manufacture the whole set of equipment. The Strong and Smart Grid development has been included in the Twelfth Five-Year Plan for National Economic and Social Development of the People's Republic China. It's the right time to develop UHV transmission and construct large-scale energy bases. The world's first UHV AC and DC projects have maintained a safe and stable operation, verifying the safety, feasibility and economical efficiency of UHV transmission. A series of UHV projects, such as the ones delivering power from Anhui to East China, Jinping-Sunan, South Hami-Zhengzhou, Xiluodu-Zhexi, are under construction. To the end of 2015, SGCC will build the UHV AC power grid covering the north, east and central China and 14 UHV DC transmission projects connecting all kinds of energy bases with load centers. The UHV transmission capacity will reach 150GW, meeting the demand of 100GW installed wind power capacity.

Bulk wind power integrates into a grand power grid, which in return supports scaled development of wind power. In prospect, the Strong and Smart Grid backboned by UHV grids will be a platform to exploit, accommodate and operate the renewables in China and guarantees their stable, healthy and sustainable development in a long run.

Source: Office, Research Office, Media Center, Indaa Media

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