Original title: “Green Highlights” of Beijing Winter Olympics: Full coverage of green power emphasizes reuse after games
The opening of the Beijing Winter Olympics is imminent. On January 13, the Beijing Olympic Organizing Committee and the Shijiazhuang Municipal Government handed over a report on the sustainable development of the Beijing Winter Olympics in Beijing, explaining in detail how to hold a green Winter Olympics.
“The Beijing Winter Olympics is the first Olympic Games that implements the Olympic 2020 Agenda in the whole process of bidding, planning and hosting, and it is also an Olympic Games that actively implements the United Nations Sustainable Development Goals.” Yan Jiarong, spokesman for the Beijing Winter Olympics Organizing Committee, said that the Beijing Winter Olympics The Olympic Games will strive to create a sustainable Winter Olympics. Its “green” highlights are quite numerous.
For example, the Beijing Winter Olympics has adopted a number of measures such as low-carbon venues, low-carbon energy, and low-carbon transportation to achieve the goal of carbon neutrality. And for the first time in the history of the Olympic Games, all venues have been fully covered by green electricity. At the same time, the existing venues and facilities are maximized, and the post-game utilization is fully considered in the planning and design of the new facilities, which effectively reduces the cost.
This year’s Winter Olympics will fully reflect China’s determination to develop green technologies and environmental protection.
Green Olympics take shape
“Sustainable development is my country’s national strategy and one of the three major themes of the Olympic 2020 Agenda.” Li Sen, director of the overall planning department of the Beijing Winter Olympics Organizing Committee, said that over the past six years, the concept of green Olympics has been implemented throughout the preparations. process. The Beijing Winter Olympics Organizing Committee has established a sustainable management system to effectively manage sustainable work in major venues and more than 50 business areas. In view of the fact that snow projects are mainly distributed in mountainous areas, measures are taken to reduce the impact on the environment from the design source.
In addition, the Beijing Winter Olympics will strictly implement low-carbon management, make full use of the 2008 Olympic venues, build low-carbon venues, fully use low-carbon energy, and use green electricity for 100% of the conventional energy in all venues during the competition. And build a low-carbon transportation system, energy-saving and clean energy vehicles accounted for more than 80% of the vehicles in the race. All these measures are aimed at reducing carbon emissions during the preparation and holding of the event, so as to achieve the goal of “neutralizing all carbon emissions generated by the Beijing Winter Olympics”.
It is reported that on the basis of the above-mentioned low-carbon measures, the Beijing Winter Olympics actively expands carbon compensation channels. The governments of Beijing and Zhangjiakou donate forestry carbon sinks to the Beijing Winter Olympics. PetroChina, State Grid, and Three Gorges Group also contributed to the Beijing Winter Olympics. By sponsoring carbon-neutral products, through these measures, the Beijing Winter Olympics will be fully carbon-neutral.
The Green Olympics are not only reflected in the fields of construction, transportation and power supply, but also use many new technologies in water resources and waste disposal, reflecting the “greenness” of the Winter Olympics.
Li Sen introduced that in terms of water resources, the snowmaking water in the Yanqing and Zhangjiakou competition areas basically uses surface water, and the problem of this part of the snowmaking water is solved by the collection and reuse of rainwater and snowmelt water. Both Yanqing and Zhangjiakou competition areas have built high-standard domestic sewage treatment facilities, and the domestic sewage in the competition areas will be fully collected, fully treated and reused.
In terms of waste disposal, the Beijing Winter Olympics mainly conducts unified management and classification of waste in accordance with the principles of source reduction, recycling of disposal, and unified management. For example, there are some waste problems in the construction stage. Some rocks in the Yanqing competition area are used directly on the spot, which are used for the “gabion wall” materials of the outer walls of the building, including the paving of roads. There are some waste pile heads in the construction of the National Speed Skating Hall, which are directly converted into raw materials for the production of the National Speed Skating Hall stands.
100% use “green electricity”
One of the highlights of the Beijing Winter Olympics is that for the first time in the history of the Olympic Games, all venues have been fully covered by green electricity. Green power refers to the use of specific power generation equipment, such as wind turbines, solar photovoltaic cells, to convert renewable energy such as wind energy and solar energy into electricity.
Liu Yumin, director of the Planning and Construction Department of the Beijing Winter Olympics Organizing Committee, pointed out that the power supply of the Beijing Winter Olympics is basically based on the existing municipal power grid. Green power supply. In this process, in addition to the necessary power transformation and distribution facilities of the venue itself, the existing power grid resources in the city and the existing planning and construction power grid resources are basically used, and other power facilities do not need to be built.
According to estimates, from the first green electricity transaction in June 2019 to the end of the 2022 Winter Paralympic Games, the green electricity in the venues in Beijing, Yanqing, and Zhangjiakou is expected to use 400 million kWh, which can reduce burning by 128,000 tons. standard coal, reducing carbon dioxide emissions by 320,000 tons.
The realization of 100% green power supply in the Beijing Winter Olympics benefited from the coordinated development of Beijing-Tianjin-Hebei. According to Liu Yumin, among the three competition areas, Zhangjiakou and Yanqing have abundant clean energy reserves. For example, around the Guanting Reservoir in Yanqing and Zhangjiakou, a large number of wind power generation facilities have been built more than ten years ago. It is estimated that Zhangjiakou’s developable wind energy reserves will reach more than 40 million kilowatts, and the developable solar energy resources will reach 30 million kilowatts. In addition, the annual output of biomass resources is more than 2 million tons. The reserves of renewable energy are very sufficient, which can ensure the supply of green electricity for the Winter Olympics venues.
Li Sen also pointed out that the 500 kV flexible DC grid in the Beijing-Tianjin-Hebei region has adopted many world-leading new technologies, which are pioneered in the world, and are currently the DC grid with the highest voltage level and largest transmission capacity in the world. Through this power grid, Zhangbei’s green power can be delivered to all venues in the three competition areas with minimal loss.
“During the operation process, multi-energy complementary and coordinated operation has been realized,” Liu Yumin added, explaining that the surplus electric energy on the DC grid will be transported to the Fengning Pumped Storage Power Station built by the State Grid – this is the existing state grid. electrical facilities. When the demand for electricity is high, Fengning Pumped Storage Power Station will send the stored electricity to the grid, which is equivalent to backing up a large “charging treasure” for the entire grid. Through energy complementation and collaborative work, the power security of the Winter Olympics venues is guaranteed. run.
There are many ways to use the venue after the game
In previous Winter Olympics, the post-competition utilization of venues has always been a problem. In response to the issue of post-competition utilization of the Winter Olympics venues, Li Sen said that the Beijing Winter Olympics used 6 Olympic venues from 2008, and fully learned from their post-competition utilization experience. And in the planning and design, the problem of post-competition utilization is fully considered, and the overall planning and synchronous design can effectively reduce the cost.
According to its introduction, these venues should actively bid for and hold high-level events after the game. After all, the competition venues of the Beijing Winter Olympics are all world-class venues. During the preparation process, the local sports departments, including the venue owners, have established a good cooperation and communication mechanism with the international winter sports organizations. Continue to bid for hosting high-level international and domestic events, drive the operation of venues through high-level events, and contribute to the development of ice and snow sports.
On the other hand, the venue is considered to be fully open to the public. Li Sen revealed that in addition to competitive competitions, the venues will provide sports and fitness services to the general public. All new venues have fully considered how to open them to the public at the beginning of their planning and design. For example, the newly built National Speed Skating Stadium in the Beijing Division ( “Ice Ribbon”), the ice surface of the “Ice Ribbon” is a 12,000-square-meter full ice surface design. At that time, the whole ice surface was considered to consider how to open up to the society, because the speed skating on the highway mainly used the outer 400-meter track , There will be two standard ice rinks in the core part. Li Sen revealed that this is an innovative part, which can accommodate 2,000 people on the ice at the same time after the game.
Another example is the National Snowmobile Center in Yanqing, which has the 17th track in the world. This niche event is relatively dangerous to exercise. Therefore, during planning and design, an exit was opened in a place where the track is relatively slow, to the general public. A departure area is reserved for the convenience of opening to the public after the game to provide conditions.
Li Sen said that the competition venues should consider the operation of the four seasons. Winter sports are greatly affected by seasonality. Because ice sports are indoor ice rinks, ice can be made all year round, so they can be open to the public for a long time to hold large-scale events, cultural and leisure activities, etc. However, for snow venues, such as the Yanqing and Zhangjiakou competition areas, project experience and competitions can only be carried out in winter. In response to this situation, the Beijing Olympic Organizing Committee in the planning and construction of mountain venues in the mountains, from the overall competition area, fully considered spring, summer, In terms of operation in autumn and third seasons, take advantage of the cultural history and natural ecology of the competition area to establish outdoor sports projects, such as fitness running, cross-country running, mountain biking, mountain climbing, etc., and accelerate the development of regional tourism and leisure, mountain vacations, outdoor sports and other industries , to realize the four-season operation of the venue. It is reported that in the Yunding Ski Park in the Zhangjiakou competition area, the number of leisure vacations and summer vacations in the three seasons of spring, summer and autumn is actually much higher than the number of skiers in winter.
Li Sen believes that the post-match utilization of venues is not a matter of considering the operation of a certain venue in isolation, but must be integrated into the development of the region, and planned and promoted as a whole. The Beijing Winter Olympics Organizing Committee also actively promotes the joint development of venues and ice and snow sports resources in the three competition areas, fully integrating with the public ice and snow facilities, sports facilities, and natural and cultural tourism resources along the Beijing-Zhangjiakou Line. Rapid transportation links will create a Beijing-Zhangjiakou sports and cultural tourism belt, drive the high-quality development of surrounding areas, promote each other and develop together, so as to realize the repeated, comprehensive and lasting utilization of the Winter Olympics venues.
(Author: Gao Jianghong Editor: Bao Fangming)
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