Photovoltaic Application in Beijing Winter Olympics
On February 4, 2022, the Beijing Winter Olympics opening ceremony is held. This Winter Olympics is the first ever Olympic Games where all venues use 100% green electricity. It is predicted that by the end of the Winter Paralympics, the three major competition areas and 26 venues are expected to consume about 400 million kWh of green electricity, save 128,000 tons of standard coal, reduce carbon dioxide emissions by 320,000 tons, and use clean energy vehicles as high as 85% or so.
Zhangbei ±500kV flexible DC power grid demonstration project, with a total line length of 666 kilometers, is the world's first flexible DC power grid project. The project adopts 12 advanced new technologies, and is also the flexible DC power grid project with world's highest voltage level and largest transmission capacity. The project is a key construction project serving the 2022 Beijing Winter Olympics, providing clean energy for Beijing and the Winter Olympics venues.
The Zhangbei project has weaved a huge "green grid", connecting hundreds of wind farms and thousands of photovoltaic power plants in Zhangjiakou area into an whole, which can deliver about 14.1 billion kWh of clean energy to Beijing area every year, which is about a tenth of Beijing's electricity consumption. It can save 4.9 million tons of standard coal and 12.8 million tons of carbon dioxide emissions every year.
National Speed Skating Oval is located at the Olympic Park in Chaoyang District, Beijing, with a total construction area of 80,000 square meters. As the only newly-built ice competition venue in the Beijing Zone of the Beijing Winter Olympics, National Speed Skating Oval adheres to the concept of green, environmental protection and sustainable construction, setting a new benchmark of Chinese design, Chinese technology and Chinese manufacturing for the construction of Olympic venues.
The venue is made of glass, all the glass form a unique curved glass curtain wall, using the latest technology to create 22 elegant "ice ribbon" effects. The outer edge of the roof is equipped with a an integrated solar photovoltaic power system. 12,000 pieces of sapphire blue photovoltaic power generation curtain wall glass are gradually arranged from the outer edge of the roof to the inner side, like melting snow, showing the characteristics of winter sports.
The National Speed Skating Oval successfully completed its first ice-making in January 2021. The world's largest ice surface of 12,000 square meters is made of carbon dioxide. The 12,000 pieces of photovoltaic glass installed on the roof form an integrated photovoltaic power system, to provide a steady stream of clean electricity for the entire ice-making system of the venue.
The Wukesong Sports Centre "Ice Crystal" combines photovoltaics and buildings more efficiently and concisely, with 1958 solar panels and a photovoltaic power generation system of about 600 kilowatts installed on the roof. The hollow grille curtain wall around the building forms a space combining virtual and real with the main building. It is reported that the venue can achieve an annual power supply of about 700,000 kWh, save 252 tons of standard coal, and reduce carbon emissions by about 697.8 tons. It is also a "green" venue that cannot be underestimated.
It is worth mentioning that the Olympic Village Main Press Centre is designed as a low-carbon green building, and the roof skylight of the Main Press Centre adopts an integrated photovoltaic (BIPV) method to install a distributed photovoltaic power system. At the same time, with the help of Internet + and 5G intelligent technology, it can show the whole process of green power production, transmission, consumption, energy conservation and emission reduction to the audience.
Beijing Winter Olympics provided a "China solution" for other countries which will hold the Olympics in the future. While reducing energy consumption and promoting green development, new business formats will also bring new revenue. Using technology to promote green Olympics, the Beijing Winter Olympics will be a model of new sustainable development.
