The year 2012 will be a crucial year for connecting the past and the future during the 12th Five-Year Plan period. It will be the year when the 12th Five-Year Plan is finalized and relevant construction is in full swing.
This year, in order to better promote national economic and energy development and serve the people's livelihood, China's power grid construction investment continued to increase, the speed has been accelerating. According to the 12th Five-Year Plan for power grid development, the backbone of power grid has been strengthened, the power supply level of distribution network and agricultural network has been steadily improved, and the development capacity of power grid to serve clean energy has been significantly enhanced. In 2012, the development of power grid has further presented a welcoming trend of strong, efficient, safe, high-quality, green and clean.
The construction of strong and efficient power grids continued to accelerate
On December 12, Sichuan Jinping -- Jiangsu Southern Jiangsu ±800 kV UHVDC project, which has the highest transmission capacity, transmission distance and voltage grade in the world, was officially put into commercial operation, which is another peak of THE WORLD HVDC technology in China after yunguang and Shangshang UHVDC projects.
The operation of Jinsu DC also provides a more efficient way of power transmission and service for economic development -- promoting the development of large-scale hydropower resources in southwest China, ensuring the power supply in eastern China, and setting up a power bridge between the land of abundance and jiangsu and Zhejiang that transforms the advantages of energy resources into economic advantages.
Turning over the course of power grid construction in 2012, there are a number of important power grid projects or started, or completed, it can be said that everywhere.
The reporter understands from the state grid corporation, in 2012, - ganzi - Shi Qu xindu bridge engineering and high LingBei back expansion of a number of key projects have been put into operation, such as xinjiang and the northwest provids the second channel network engineering, yushu and accelerate the qinghai provids networking engineering, power grid construction began 220 kv ZhuWangJia, thermal fluid activity, zheng creek, zhejiang dc project formally started; By November 30, State Grid Corporation of China had put into operation 110 (66) kv ac lines and substation capacity, 79.6% and 82.2% of the annual plan respectively, and is expected to complete the grid construction task by the end of the year.
The "two crossing" projects initiated by China Southern Power Grid Corporation at the end of last year, namely ±800 kV DC power transmission project from Pu 'er in Yunnan province to Jiangmen in Guangdong Province, and ±500 kV DC power transmission project from Xiluudu Right Bank Power Station to Guangdong Province, are also in steady progress. By the end of October, the overall progress of the two projects had reached 40% and 36%, respectively, and half of the total project is expected to be completed by the end of the year. Production will begin next year.
If these grid projects are laid out as lines on a map of China, an increasingly strong and efficient electricity grid will emerge. According to statistics released by the China Electricity Council, although the growth rate of electricity consumption is slowing down, investment in power construction, especially in grid construction, continues to grow.
From January to October this year, 545.3 billion yuan was invested in power engineering construction, up 2.22% year on year. Of this, 277.7 billion yuan was invested in power grid construction, up 7.89% year on year.
The rapid development and construction of power grid is the practical demand for promoting China's economic and social development, building a "beautiful China" and building a well-off society in an all-round way.
Safe and quality power supply services have been steadily improved
October 30 is a big day for Labo village, Labo township, Ninglang County, Lijiang City, Yunnan Province, where 48 households without electricity were finally provided with electricity by two groups of villagers. So far, China Southern Power Grid Has achieved the goal of "electrifying every household" within the scope of power grid coverage during the 12th Five-Year Plan period in advance.
In 2012, more places were lit up with safe, high-quality electricity. Located in The westernmost part of China, Jigen Township, Wuqia County, Xinjiang is known as the last place where the sun leaves China. On December 18, sufficient and stable electricity from xinjiang's main power grid was officially imported to this border town, which made over 2,200 border guards and border troops say goodbye to the history of power shortage and brought new hope for local development.
Since October 2011, the national electrical supervisor will conduct special action residential electricity service quality regulation, combining with the actual power grid enterprises, adjust measures to local conditions, formulate specific measures, intensify without electricity grid construction investment, through the extension of interconnected power grid, the development and utilization of wind energy, biomass energy, solar energy and other means, within a year or so, A total of 160,000 households without electricity were provided with electricity.
Use electricity, but use it well. In November this year, the state electricity supervision committee on the quality of electricity and power supply service level of China's residents carried out a multidimensional assessment and summary. Data show that from January to September, power regulatory agencies and power grid enterprises vigorously implemented residential power consumption satisfaction projects, and the national urban and rural distribution networks completed an investment of 1113.2 billion yuan, up 13% year-on-year, accounting for 49.3% of the total investment in power grid projects. The power supply capacity of the national urban and rural distribution networks has been significantly improved. Reliability of power supply in China is 99.948%, up 0.014 percentage points from last year. Power supply enterprises across the country have solved the problem of low voltage for 18.797,700 people, alleviated the long-standing problem of electricity supply for residents, especially in old urban residential areas and rural areas, and ensured their demand for electricity. A total of 44,000 outlets have been added, and "ten-minute payment circles" are being formed in large and medium-sized urban areas in most provinces, and "payment points are being set up in every village" in rural areas.
While the power supply capacity and level continue to improve, in 2012, the major power outage accident in India once again sounded the security alarm for the power grid enterprises, which regard security and stability as the lifeline.
Through summary analysis of India blackout lesson, hidden perils in safety in the power grid companies, and in accordance with planning to strengthen the construction of urban distribution network, speed up the transformation and upgrade of a new round of rural power grids and at the same time, through strengthen control management, strengthen the operation of typical safety risk assessment by the end of the power grid, strengthen weak power grid construction reform, establish and improve the security mechanism, Prevention of large-scale power failure.
To make power grid operation safer and power supply service better is the direction of power grid enterprises' efforts. In 2012, power grid enterprises continued to make steady progress towards this direction.
Efforts were intensified to connect green, clean and clean energy to the grid
In October, a document was released that put State Grid in the spotlight of the new energy industry and the news media. On The 26th of the same month, The State Grid Corporation of China issued the "Opinions on Doing a Good job in Grid Connection Service of Distributed PHOTOVOLTAIC Power Generation (Interim)" to the public, making "gee-giving" commitments to the owners of distributed photovoltaic power generation projects, such as free access service, exemption of system standby fee, and full purchase of surplus power in accordance with the national policy. For The Chinese photovoltaic enterprises in the cold current of "double counter-attack", the state Grid Corporation of China's move can be described as "timely help", received praise from all walks of life.
According to data released by the State Electricity Regulatory Commission, in November, State Grid Corporation of China accepted 123 applications for grid-connected distributed photovoltaic power generation, with a total installed capacity of 176.4 MEGAwatts, including 110 applications for rooftop photovoltaic power generation, with a total installed capacity of 162.7 megawatts, accounting for 92.3%.
In recent years, with the increasing pressure of energy conservation and emission reduction in China, the development speed of new energy is further accelerated. However, the problem of grid connection of new energy is considered to be an important factor restricting its development. In view of this situation, power grid enterprises are constantly trying in the technology, policy, mechanism and system of new energy grid connection, and have achieved certain results.
In terms of wind power development, The State Grid Corporation of China took the lead in publishing the White Paper on Promoting wind Energy development last April.
As of June this year, Great progress has been made in China's wind power grid connection, with the capacity of grid-connected wind power reaching 52.58 gigawatts, surpassing the United States and ranking first in the world. The state Grid operates 50.26 million kilowatts of wind power, making it the largest and fastest growing power grid in the world.
China Southern Power Grid Recently said it will invest 1.5 billion yuan over the next 10 years to support the development of wind power in Guangxi. It is understood that Guangxi can develop wind power installed capacity of more than 13 million kw. By the end of October, the total installed capacity of wind power under construction, pending approval or under development for research and design was 1.6 million kw, accounting for 12.1 percent of the developable installed capacity.
The 18th CPC National Congress put forward the goal of building a "beautiful China". Accelerating the development of clean energy and providing adequate and clean energy supply for building a moderately prosperous society in an all-round way and building a modern socialist country are the basic requirements and concrete practices for the construction of "beautiful China" in the electric power industry and the implementation of the spirit of the 18th CPC National Congress.
By 2020, China's installed hydropower capacity will reach 350 million kW, wind power capacity over 200 million KW, and photovoltaic power capacity over 50 million kW, according to estimates. It is both a challenge and an opportunity for power grid enterprises to deliver these green and clean electric energy and optimize the allocation of energy resources in a wide range. It's a responsibility and an honor. Power grid enterprises are moving forward on the road to a "beautiful China" and a well-off society.
