Clean heating as a major livelihood project has attracted the attention of all walks of life. Recently, the 2018 International Clean Heating Summit was held in Xiong'an New District, Hebei Province. At the meeting, the work of 'coal to electricity' was remarkable.
Beijing Changping Power Supply Company employees carried out 'coal to electricity' construction in Kangling Village, Shiling Town
At the end of July this year, the "Notice on Expanding the Central Financial Support for the Winter Clean and Heating City in the North Region" jointly issued by the four ministries and commissions clearly stated that the scope of application for clean heating pilot cities will be extended to the air pollution control transmission channel in Beijing, Tianjin and Hebei and surrounding areas. +26' City, Zhangjiakou City and Yuping Plain City, after the end of the three-year demonstration period, the clean heating rate of the pilot urban area should reach 100%. State Grid Corporation actively implements the winter clean heating plan in the northern part of the country, with '2+26' atmosphere Focus on the city of pollution prevention and transmission channels, formulate implementation plans, plan to invest 272.1 billion yuan, promote the construction and transformation of the 'coal to electricity' supporting power grid, serve green development, and help win the 'blue sky defense war'.
After three years, the clean heating rate of the pilot city area reached 100% 'coal to electricity' to help win the 'blue sky defending war'
The smooth progress of 'coal to electricity' has made people in the Beijing-Tianjin-Hebei region feel the obvious reduction of smog days. The Ministry of Ecology and Environment reported that the average monthly concentration of fine particulate matter (PM2.5) in Beijing from March to August this year. The lowest level of history in the same period was achieved. In 2017, the average concentration of PM2.5 in 13 major cities in the Beijing-Tianjin-Hebei region fell by nearly 10% year-on-year.
At the end of August in Rongcheng, Hebei, there was already a slight coolness in the breeze.
If you take the bus to Rongcheng County and then transfer to the electric shuttle bus, after 5 minutes, a green meadow with a green grass will be in front of you. Here is the world-famous Xiong'an New District. As the Shenzhen Special Economic Zone and After the Pudong New Area in Shanghai, another new district with national significance, known as the 'Millennium Grand Plan' 'National Events', represents the new direction of China's future urbanization development. Clean development is an important part of the planning of Xiong'an New District. Guo Zhi, chief economist of the National Energy Administration, revealed that in the future, Xiong'an New District will continue to optimize the energy consumption structure, and all terminal energy consumption will be clean energy.
Not only the Xiong'an New District, but now, in China, clean development is taking an increasingly important position in energy planning.
In the clean development, clean heating is not only an important content, but also directly related to whether it can win the 'blue sky defense war'. It is a major livelihood project. The central financial leadership group held on December 21, 2016 is the tenth. At the four meetings, General Secretary Xi Jinping pointed out that it is necessary to follow the enterprise as the mainstay, the government promotes, the policy that the residents can afford, the gas should be tempered, the electricity should be electricity, the clean energy should be used as much as possible, and the proportion of clean heating should be accelerated. At the end of July this year The "Notice on Expanding the Central Financial Support for the Winter Clean and Heating City in the Northern Region" jointly issued by the four ministries and commissions of the State clearly stated that the scope of application for clean heating pilot cities will extend to the air pollution control transmission channel '2+26' in Beijing-Tianjin-Hebei and surrounding areas. City, Zhangjiakou City and the plain city, after the end of the three-year demonstration period, the clean heating rate of the pilot urban area should reach 100%.
The goal of cleaning the heating rate of 100% means that the residents of the pilot city will enjoy clean air and warm winter at the same time. ' 'Coal to electricity' allows residents to bid farewell to the coal stove heating method, and the quality of life has been greatly improved. ' Ecological environment Wu Xianfeng, deputy inspector of the Department of Atmospheric Environment Management, believes that 'coal to electricity' has great advantages and plays an important role in cleaning and heating.
At the clean and warm summit, many experts said that the conversion efficiency and emission of electric energy in the end consumption segment is significantly better than coal and oil, and the environmental protection effect is obviously better than the decentralized combustion. 'If the proportion of electricity in energy supply increases, non-electric fuel The proportion will be greatly reduced, and the direct use of fossil fuels at the end should be minimized, such as limited to industrial production and partial transportation. 'Jiang Yi, director of the Building Energy Research Center of Tsinghua University.
It is understood that there are not many areas that focus on electricity generation by coal in 2018. For example, Shijiazhuang, Hebei Province, on the basis of the provincial-level plan, further requires that the residents of dispersed coal-fired heating should be preferentially implemented on behalf of the grid; Tianjin is working. The plan clearly stated that 'it is qi, then qi, electricity should be used, priority should be used for electricity'; except for 5 central urban areas, the proportion of electricity to coal in 9 counties and cities in Jining, Shandong will exceed 60% this year...
Many places said that they want to 'prioritize electricity' this year. What is the reason? A group of data from the State Grid Corporation is enough to illustrate the problem.
As of the end of 2017, State Grid Corporation has carried out residents' 'coal to electricity' in '2+26' cities, and completed 2 million renovation tasks, with a heating area of over 200 million square meters, and 15 provinces (autonomous regions and municipalities) in the northern region. Hospitals, shopping malls, enterprises and other places, promote electric boilers, heat pumps and other centralized electric heating technology, cumulative implementation of 15,000 projects, promote 430 million square meters to achieve electric heating, replace 18,000 units, 330,000 tons of heating small boilers , effectively guarantee the electricity demand of residents after 'coal to electricity'.
It is reported that the State Grid Corporation is leading the re-electrification as a development strategy, serving the energy industry to a clean, low-carbon transition, in residential heating, industrial and agricultural manufacturing, transportation, electricity supply and consumption, home electrification and other fields. We will vigorously promote alternative technologies such as clean heating and coal-to-electricity, and build a large number of demonstration projects to accelerate the replacement of electric energy. 'We have done a lot of work in power grid supporting, terminals, etc., and actively explore 'coal to electricity' in the heating market. The first is to promote the '2+26' cities in Beijing-Tianjin-Hebei, followed by the promotion of 'coal-to-electricity' in enterprises and institutions, the Sanbei area, and the industrial sector. 'The relevant person in charge introduced the reporter.
Ecological environmental protection is an important basis for promoting coordinated development. The smooth advancement of 'coal to electricity' has made people in the Beijing-Tianjin-Hebei region feel a significant reduction in smog days. The Ministry of Environmental Protection news shows that from March to August this year, Beijing The average monthly concentration of fine particulate matter (PM2.5) was the lowest in the same period of history. In 2017, the average concentration of PM2.5 in 13 major cities in Beijing-Tianjin-Hebei region decreased by nearly 10% year-on-year. It was the development of Beijing-Tianjin-Hebei urban agglomeration. Suffering from the smog, thanks to the long-term effect of 'coal to electricity', comprehensive treatment measures have been greatly alleviated. The residents of the Beijing-Tianjin-Hebei region enjoy the clean winter brought by electric heating.
According to local conditions, formulate heating technology route to accelerate the construction of electric heating supporting power grid
China's heating area spans a lot, and there are differences in local economic, climatic conditions, and electricity market conditions. It is necessary to closely combine the characteristics of each region, formulate a targeted combination strategy, encourage the construction of supporting power grids, and build synergy for all parties. The whole society apportions the electric heating construction return mechanism to ensure that the supporting power grid construction progress is effectively matched with the heating project.
In fact, the problem that needs to be solved during the heating season is not just coal pollution.
Wu Xianfeng believes that in the future, winter heating will not be able to rely on terminal management on a large scale: 'At present, the situation has forced us to move the industrial structure, the energy structure step, to use local resource endowments, infrastructure and other conditions, and to adhere to local conditions. , take more measures. '
According to local conditions, the most important thing is to choose a clean and washable technology route that can be copied and promoted. 'To clarify the technical route of electric heating and the scale of supporting power grid construction and transformation, orderly promote 'coal to electricity', and promote direct transactions between wind power and heating users. Low-altitude electricity trading, improving the economics of coal-to-electricity and promoting the absorption of new energy. 'Guo Zhi said. In fact, the reliable technical route of 'coal to electricity' has taken shape. It is understood that the State Grid Corporation has issued and issued the country. The grid company's distribution network 'coal to electricity' construction and transformation technology principles, clear that the average household electricity capacity standard is raised to 5 ~ 7 kW, the annual average power outage time of the 'coal to electricity' regional users does not exceed 3 hours. For schools, enterprises Institutions and other heating projects, specifically opened up the power to increase capacity 'green channel' priority.
The person in charge of the relevant work said that the current electric heating is mainly divided into two types, namely, the use of centralized heating facilities such as electric boilers, and the use of distributed electric heating facilities such as heating cables, electric heating membranes, and thermal storage heaters. Electric-driven heat pumps provide users with heating, flexible layout and operation. 'Using these flexible methods, from urban to rural, from centralized to decentralized, from residents' lives to schools, hospitals, office and office space, etc. State Grid Corporation fully promotes the application of electric heating pilots to meet the different needs of various users.
The new technology route has spawned a new type of heating equipment. Maduo County, Qinghai Province is located in the core area of Sanjiangyuan, Qinghai-Tibet Plateau. The annual average temperature is minus 4.1 degrees Celsius, but now, in the teaching building of the National Boarding School of Maduo County, there is a burst of warmth. However, the students were pleasantly surprised to find that the classrooms and dormitory were warmer and the campus was clean. Tian Chao, a staff member of Qinghai Guoluo Power Supply Company, told reporters that they installed the school in the Maduo County Clean Heating Project. New electric heating equipment. 'It is very different from traditional electric boilers. In the high altitude of Maduo County, the outlet temperature can reach 80 degrees Celsius. In the long run, this new electric boiler is cleaner, more efficient and more traditional than coal boilers. Electric boilers are more energy efficient. ' Tian Chao said.
Students from the National Boarding School in Maduo County, Qinghai enjoyed warm electric heating.
The county-wide clean heating project in Maduo County is only a microcosm of the State Grid Corporation's accelerated construction of electric heating supporting power grids. The reporter learned that State Grid Corporation arranged a special fund of 31.08 billion yuan in 2017 for the construction of supporting power grids for 'coal to electricity'. Renovate the construction plan of the village as a unit, carry out the investigation and rectification of hidden dangers of the 'coal to electricity' power grid, promote the technical measures of 'blackout without stopping the heating', and successfully complete the 'coal to electricity' heating of 2 million households in Beijing, Tianjin and Hebei and surrounding areas. task.
Building a new type of power grid that adapts to 'coal to electricity' and improving the clean heating market mechanism requires a multi-party synergy. 'China's heating area has a large span, local economic, climatic conditions, power market conditions, etc., and needs to be closely integrated with local characteristics. Focusing on the real combination strategy, encourage the construction of supporting power grids, establish a joint effort of all parties to promote, multi-win, and share the electric heating construction return mechanism of the whole society, and ensure the effective matching of the supporting power grid construction progress with the heating project. Express.
Deeply tap the potential of clean energy to provide new high-quality electric heating services
Today, the State Grid Corporation has combined new energy consumption and electric heating modes to tap into the potential of clean heating and achieve deeper clean heating.
At the clean heating summit, Guo Zhi gave an example of the potential of clean energy in electric heating. 'We found in the survey that Shanxi Jinzhong uses 'solar + biomass' 'solar + heat source heat pump' to warm , has achieved a good effect. Making full use of solar energy is very helpful to effectively reduce heating costs. 'Guo Zhi said that the orderly promotion of 'coal to electricity' new energy and heating users direct transactions, low-altitude electricity trading, both It can improve the economy of coal to electricity, and promote the consumption of new energy.
Today, the State Grid Corporation has combined new energy consumption and electric heating modes to tap into the potential of clean heating and achieve deeper clean heating.
Two counties in Linxi County, Chifeng City, Inner Mongolia, and Zhalute Banner, Tongliao City, now have another name, called 'Wind Power Heating Pilot Banner County', which originated from the State Grid Inner Mongolia Eastern Power Co., Ltd. began to explore the new heating of wind power heating. Way. State Grid Mengdong Power has built two wind power heating stations in Mengdong Xiehe Education Park and Hebei New District. According to the annual electricity consumption of 47.399 million kWh, it can save 8152.6 tons of standard coal per year and reduce soot emissions by 78.3. Tons, reducing sulfur dioxide emissions by 134.5 tons, reducing carbon dioxide emissions by 20028.6 tons.
It is understood that the State Grid Corporation has done a lot of work in promoting clean energy consumption and providing clean electric heating for residents. In Maduo County, Qinghai 'Sanjiangyuan' National Nature Reserve, villagers rely on photovoltaic power generation for heating; in Urumqi, Xinjiang , Altay, Tacheng and other places, wind power clean heating area of 1.14 million square meters; in Jinchang, Guazhou and other photovoltaic bases, electric heating area of 1.44 million square meters; 2016 ~ 2017 heating season, Jilin, Qinghai, Xinjiang, In Gansu and other places, we will eliminate winds by clean heating and abandon the photoelectric output by nearly 300 million kWh. In clean energy-rich areas, the power supply exceeds demand, and the State Grid Corporation conducts direct transactions with clean energy and high-efficiency environmentally friendly power generation companies. Trading, using market-based means to reduce the cost of electricity for electric heating, so that residents get benefits, but also effectively promote the treatment of loose coal and improve air quality.
'Promoting clean and heating, you can use abundant renewable energy sources such as light, wind, etc., supplemented by heat sources such as electricity, gas and biomass to form a comprehensive clean energy supply. 'Xie Qiuye, Dean of the General Electric Design Institute, suggested It should be combined with the heating situation in different places to adopt a variety of energy planning, especially multi-energy complementarity, complement each other.
In this regard, Wang Xinlei of the State Grid Beijing Institute of Economics and Technology believes that clean heating should be transformed from a single energy plan to a comprehensive energy plan, from a single energy supply to a comprehensive energy supply service. 'Especially in the construction of market mechanisms, if To achieve the synergy of heat, electricity, gas and coal, and to promote the multi-energy coupling under the multi-energy complementary state, and realize the concept of 'Yidian is electricity, suitable for gas and gas', and it is expected to completely complete the 'defend blue sky' project. ' Wang Xinlei said.
The construction personnel of Dachang County Power Supply Company in northern Fujian replaced the smart meter box for the 'coal to electricity' user.
Let the 'coal to electricity' users not only 'useful', but also 'use well', in addition to the new energy supply mode, quality service is also essential.
State Grid Corporation has built an 'online and offline' power purchase service channel in the 'coal to electricity' villages and towns, promoting the 'handheld power' APP, Alipay, rural commercial bank telephone banking and other online power purchase channels to ensure that users 'free daily purchases do not leave the village. ' More than 40 repair points for the coal-to-coal area of the Beijing-Tianjin-Hebei, which is more concentrated in 'coal-to-electricity', more than 150 emergency power generation vehicles are deployed to provide emergency power supply services for users; and Communist Party service is established in the village of 'coal-to-electricity' Stations, villages and villages set up power housekeepers, carry out voluntary public welfare services, ensure reliable power supply for residents, and provide a strong energy guarantee for the rural revitalization strategy.
Nowadays, in the vast areas after the 'coal to electricity', the power supply capacity has been greatly improved. The actual electricity consumption of the residents has reached 6~9 kW, which is more than 4 times higher than the original. The residents have begun to use electric cookers, air conditioners and water heaters. And other equipment, plug and play, break at any time, even remote control, the quality of life is greatly improved. Sky blue, the house is warm, the State Grid Corporation's new high-quality electric heating service, make electricity heating 'available, affordable, sustainable ', also let the masses really have a clean and warm winter.