In recent days, "basking in the blue sky" has become a popular theme in WeChat social media in various regions. The sky is azure, with white clouds blossoming. People take to the streets, blowing the fresh summer breeze and joyfully capturing the beautiful scenery around them.
A city without haze is so desirable. Low carbon cities, livable and sustainable, are exactly the blue water, blue sky, and beautiful home that everyone yearns for. In order to achieve this dream, all sectors of society will work together to promote energy conservation and emission reduction from their own realities. In such a strong synergy, power grid enterprises have played a positive role.
Promote electricity substitution
Building a green energy consumption model
In 2014, China's energy consumption intensity decreased by 4.8%, which is the largest decrease in recent years. The Report on the Work of the Government proposes to reduce the energy consumption target to more than 3.1% in 2015. To complete this governance task, it means reducing the direct utilization of coal by 127 million tons throughout the year, "said Wang Xiaokang, a member of the National Committee of the Chinese People's Political Consultative Conference and chairman of China Energy Conservation and Environmental Protection Group, which exceeds the annual coal consumption of many developed countries.
How can we achieve the goal of reducing energy consumption and pollution while maintaining rapid economic and social development?
State Grid Corporation of China has provided the best answer: electricity substitution. For every percentage point increase in the proportion of electricity to terminal energy consumption, the energy consumption per unit of GDP can decrease by about 4%. In the current situation of intensifying contradiction between economic development and energy demand in China, increasing the proportion of electricity in terminal energy consumption is of great significance for ensuring energy security, promoting energy conservation and emission reduction, protecting the ecological environment, and improving people's quality of life.
The company adheres to the big energy concept centered on electricity, fundamentally adjusts China's coal based energy consumption structure, vigorously implements the electricity substitution strategy of "replacing coal with electricity, replacing oil with electricity, and clean electricity from afar", with a focus on promoting economically efficient alternative technologies such as electric boilers and heat pumps in heavily polluted areas such as Beijing Tianjin Hebei Shandong, and the Yangtze River Delta. The company has strengthened communication and reporting with government departments, incorporating electricity substitution into urban construction and air pollution prevention and control plans. In 2014, governments at all levels issued 65 supportive policies, greatly accelerating the process of electricity substitution work. Based on regional and industry characteristics, the company subdivides alternative technologies, actively opens up new fields while promoting traditional electric energy substitution projects, and comprehensively promotes decentralized alternative applications for household electrification. As of the end of May 2015, the company has implemented over 20000 electricity substitution projects, achieving 94.6 billion kilowatt hours of electricity substitution. This is equivalent to reducing the use of direct coal by 42.38 million tons, reducing carbon dioxide emissions by 75.47 million tons, and reducing pollutants such as sulfur dioxide, carbon oxides, and dust by 1.73 million tons.
At the same time, the company conscientiously implements national electricity demand side management and promotes society to improve energy efficiency. In 2014, the company's system energy-saving service company made efforts to expand the market and signed 433 energy-saving project contracts with an investment of 1.25 billion yuan throughout the year; Establish 659 energy efficiency service groups, absorb 5834 members of industrial enterprises, and hold 1659 policy discussions and energy-saving exchange activities; Establish an electricity service management platform at the headquarters and 26 provincial power companies, promote the implementation of energy-saving projects by social enterprises through the implementation of energy-saving transformation of the power grid, and exceed the assessment targets for energy conservation issued by the National Development and Reform Commission.
This year, the company's electricity substitution plan has taken more innovative measures, consolidating and expanding the implementation scope of mature projects such as electric kilns, electric boilers, and heat pumps. We will vigorously promote new substitution technologies such as port electricity, carbon crystal electricity heating, and oil and gas pump to electric pump. We will use surplus clean energy to replace coal-fired power plants for power generation, with the goal of achieving 65 billion kilowatt hours of electricity substitution and continuously increasing the proportion of electricity terminals. The company will also explore the social energy conservation market from green lighting, building energy conservation, comprehensive energy use and other aspects, pilot new businesses such as user side energy trusteeship, energy monitoring, energy conservation product agency, and plan to save 22.3 billion kilowatt hours of electricity.
Consuming clean energy
Vigorously promote energy structure adjustment
In 2014, the company completed and put into operation the Zhejiang North Fuzhou AC ultra-high voltage project and the Hami South Zhengzhou, Xiluodu Zhejiang West DC ultra-high voltage project. The accumulated "three AC and four direct" ultra-high voltage projects have transmitted 136.7 billion kilowatt hours of electricity throughout the year, an increase of 88% year-on-year, truly achieving "electricity from afar" and playing an important role in ensuring energy security, improving the environment, and serving people's livelihoods. At the same time, the "four ACs and four DCs" ultra-high voltage project has been included in the national action plan for air pollution prevention and control. Construction of Huainan Nanjing Shanghai, Ximeng Shandong, and Ningdong Zhejiang projects has started. The company is operating over 15000 kilometers of ultra-high voltage lines and has a transformation (commutation) capacity of over 150 million kilovolt amperes (kilowatts). The construction of the distribution network has been continuously strengthened, the structure has become increasingly reasonable, the energy consumption level has significantly improved, and the level of intelligence has significantly improved. Within the scope of the company's system, a total of 618 electric vehicle charging and swapping stations and 24000 charging stations have been built, forming the world's largest charging and swapping service network. The "two vertical and one horizontal" expressway intercity interconnection fast charging network has been basically completed, and electric vehicles are no longer just turning in the city, but driving all the way from south to north has become a reality.
The construction of a strong smart grid not only reduces the energy consumption of the grid itself, but also effectively enhances the ability to optimize the allocation of grid resources and support the development of renewable energy. In 2014, the company's Fufeng, Jinsu, and Binjin ultra-high voltage direct current projects operated at full power for a long time, delivering Sichuan clean hydropower on a large scale to Shanghai, Jiangsu, Zhejiang, and other places in East China. When the flood season approaches, the three major ultra-high voltage direct current projects maintain a full power transmission of 21.6 million kilowatts for 1267 hours, delivering over 80% of Sichuan's hydropower to East China, accounting for two-thirds of the electricity received outside the East China area, with a capacity of 60 billion kilowatt hours. In 2014, Sichuan achieved a total of 112.2 billion kilowatt hours of hydroelectric power transmission, a year-on-year increase of 62.3%, achieving large-scale optimization of energy resource allocation and greatly serving the energy conservation and emission reduction work in East China.
In addition to green hydropower, wind and photovoltaic power generation also have great potential. The company actively implements the national energy strategy and supports the development of new energy and distributed power sources. As of the end of 2014, it has achieved a new energy grid connected capacity of 120 million kilowatts within the scope of national grid dispatch, with a growth rate of 29%. Among them, wind power reached 87.9 million kilowatts, a year-on-year increase of 25%; Photovoltaic power generation reached 23.71 million kilowatts, a year-on-year increase of 53%; Distributed photovoltaic power generation reached 2.65 million kilowatts, a year-on-year increase of 129%. The level of wind power consumption continues to improve, with a year-on-year decrease of 2 percentage points in the proportion of abandoned wind power in 2014, resulting in a corresponding decrease of 1.6 billion kilowatt hours of abandoned wind power.
Carry out energy conservation and efficiency enhancement
Effectively promoting energy conservation and emission reduction throughout society
Ensuring reliable power supply is the responsibility of power grid enterprises, and effective power conservation is another major responsibility of the company.
To truly achieve practical results in energy conservation and emission reduction, a more operational assessment system must be established. The company strengthens the construction of statistical, monitoring, and assessment mechanisms for energy conservation and emission reduction indicators, further standardizes energy consumption and energy conservation and emission reduction statistics, formulates and issues the "State Grid Corporation of China Energy Conservation and Emission Reduction Work Management Regulations", clarifies the division of responsibilities and management processes for major energy conservation and emission reduction work, and establishes a regular analysis mechanism for comprehensive energy consumption indicators such as line loss rate and 10000 yuan output value, and includes energy conservation and emission reduction related indicators such as line loss rate in the performance assessment of enterprise leaders, Increase the assessment of energy conservation and emission reduction.
On the one hand, it is necessary to save energy, and on the other hand, it is also necessary to make more effective use of energy. How to ensure efficient energy transmission and reduce losses is an important issue for power grid enterprises in the field of energy conservation and emission reduction. The company has conducted in-depth theoretical line loss calculation, proposed improvement measures, promoted the application of new materials, strengthened the transformation of old equipment, and effectively reduced the line loss rate. In 2014, the company's line loss rate was 6.81%, a year-on-year decrease of 0.46 percentage points, which is 0.44 percentage points lower than the assessment target of the fourth term of the State owned Assets Supervision and Administration Commission (7.25%). The decrease in line loss rate has resulted in a saving of 17.1 billion kilowatt hours of electricity, which is equivalent to saving 5.5 million tons of standard coal and reducing 13.7 million tons of carbon dioxide.
While focusing on its own energy-saving and consumption reduction work, State Grid Corporation of China fully leverages the role of the power grid platform, actively carries out energy-saving power generation scheduling and power generation rights trading, strengthens power demand side management, and vigorously promotes the development of energy-saving service industries. At the same time, the company actively mobilized all sectors of society to participate in energy conservation, emission reduction, and carbon reduction, carried out a wide range and diverse forms of energy-saving publicity activities, comprehensively promoting the energy development concept of "replacing coal with electricity, oil with electricity, and electricity from afar", promoting and popularizing energy-saving and electricity saving knowledge to power customers, advocating energy-saving and low-carbon consumption patterns and habits, improving energy efficiency, and saving electricity, in promoting social energy conservation and emission reduction We have been at the forefront of the times in accelerating sustainable economic and social development and promoting ecological civilization construction
