As the world's first and only "double Olympic city", Beijing has sent a satisfactory answer to the world. As the landmark venue of the Beijing main competition area of the Winter Olympic Games and the only newly-built ice competition venue, the "ice ribbon" of the national speed skating hall has realized green, intelligent and sustainable development.
"Ice ribbon" to achieve green and low-carbon, roof photovoltaic has played a great role. Above the "ice ribbon" venue, many gem blue photovoltaic power generation glasses are inlaid. These photovoltaic power generation glasses not only ensure the appearance of the "ice ribbon", but also provide a steady stream of green power for the venue.
The "brain" of these photovoltaic glasses is the photovoltaic inverter, Sungrow Power Supply Co.Ltd(300274) provides an inverter scheme for the "ice ribbon" roof photovoltaic power station, which greatly improves the conversion efficiency of photovoltaic power generation, improves the stability of power generation, and ensures the reliability of power consumption for the Winter Olympic Games.
It is estimated that the 320 kW roof photovoltaic power station installed in the "ice ribbon" can output more than 448000 degrees of clean power every year, equivalent to 358600 tons of carbon dioxide emission reduction. All the power generated is used for the daily power consumption of the venues. This project has significant comprehensive benefits and strategic significance for promoting energy transformation and green development, serving Green Olympics and leading scientific and technological innovation.
How does the brain work?
"Ice ribbon" will become an important symbol of China's ice and snow sports in the future. Wu Xiaonan, director of the venue operation team of the national speed skating hall, said at the "national speed skating hall theme press conference" that the "ice ribbon" can hold speed skating competitions and has the ability to host figure skating, short track speed skating and ice hockey competitions. This venue is not only a beautiful scenery during the competition, but also a business card for the development of ice and snow sports in China after the Winter Olympic Games.
Photovoltaic people involved in the construction of Winter Olympic venues have a deeper understanding of the green concept of the Winter Olympic Games. He Jinyin, senior solution manager, told the Huaxia times that the construction and power consumption requirements of Winter Olympic venues are more strict. For inverter equipment, we will pay more attention to the safe, stable and reliable transmission of green power.
The green current generated from the photovoltaic glass can be used in the Olympic venues by converting the variable DC voltage into the AC of the municipal power frequency through the conversion of the inverter. It is reported that the photovoltaic inverter provided by Sungrow Power Supply Co.Ltd(300274) can be configured with high-level lightning protection to ensure the safety of the inverter on the outdoor roof. The environmental adaptability of the inverter is enhanced by designing the IP66 protection grade and C5 anti-corrosion grade of the whole machine. In addition, Sungrow Power Supply Co.Ltd(300274) also uses digital technologies such as IV curve diagnosis to improve the convenience of later operation and maintenance, and fully ensure the safety, stability and reliability of the inverter in the Winter Olympic project.
Due to the particularity of the Winter Olympic venues, the project team also encountered some difficulties and overcome many difficulties in the process of design and construction. He Jinyin said, "During the progress of the project, the general contractor received the request of zero feed grid that all photovoltaic power generation must be used by itself, and the excess power will not flow back to the superior power grid. The general contractor has not been in contact with such projects before, and it is not clear how to realize this function, which has become a difficult problem in front of the project team. After in-depth research by the team, Sungrow Power Supply Co.Ltd(300274) Submitted the zero feeder scheme, arranged professional after-sales service colleagues to guide the installation and commissioning, and finally successfully realized the requirements of zero feeder. "
In 2008, Sungrow Power Supply Co.Ltd(300274) provided an inverter scheme for the 100kW photovoltaic project of the "bird's nest" of the National Stadium. 14 years later, Sungrow Power Supply Co.Ltd(300274) again provided an inverter scheme for the "ice ribbon" roof photovoltaic power station, Sungrow Power Supply Co.Ltd(300274) became a new energy enterprise escorting the winter and Summer Olympics. In these 14 years, the photovoltaic industry has also experienced many ups and downs. Under the guidance and support of national policies, the photovoltaic industry, which represents the development direction of new energy, has attracted more attention in recent years and has become a star industry standing on the air outlet.
photovoltaic industry station has reached the market outlet
At the cusp of the times, the development of photovoltaic industry has accelerated. According to the latest data of the national energy administration, China's renewable energy power generation increased steadily in 2021, reaching 2.48 trillion kwh, accounting for 29.8% of the electricity consumption of the whole society. Among them, photovoltaic power generation was 325.9 billion kwh, a year-on-year increase of 25.1%. From the current development point of view, the photovoltaic industry has entered the fast lane of China's energy industry revolution.
Under the advocacy of the green winter Olympics, China's photovoltaic industry has ushered in a new development opportunity. He Jinyin said that as a major event attracting worldwide attention, the public commitment to carbon neutrality in the Beijing Winter Olympics is of great significance to guide the public to practice the concept of low carbon and highlight China's determination to achieve carbon peak by 2030 and carbon neutrality by 2060. Photovoltaic and other new energy can help international events achieve zero carbon, which can further enhance the popularity and influence of photovoltaic and other new energy. In the era of low-carbon economy, the demand for photovoltaic and other new energy is rising. According to Bloomberg new energy financial data, the global photovoltaic installed capacity will exceed 200 million kW in 2022, which is expected to increase by more than 25% compared with 2021.
"The photovoltaic industry has changed from niche to mass, and has developed from slow cultivation to vigorous development in China." He Jinyin said that the international photovoltaic industry has been dominated by a few European and American enterprises, and now there are more and more Chinese enterprises. With the wave of internationalization, the industry also grows. In addition to providing zero carbon inverter solutions for the Beijing Winter Olympics, they have also contributed solutions and wisdom to the bird's Nest stadium of the Beijing Olympic Games, the Shanghai World Expo and the upcoming 2022 World Cup in Qatar.
For the development trend of photovoltaic inverter industry in the future, according to the Research Report Analysis of Shanghai Securities, inverter is a relatively high-quality track in the photovoltaic industry chain. Compared with the main industrial chain link, the inverter link belongs to relatively light assets, with stable technical route, stable industrial competition pattern and high leading profitability. In 2020, among the top ten inverters in the world, Chinese enterprises accounted for six seats, with a total market share of 60%. Compared with all links of the main industrial chain, the market share still has room to continue to improve.
