China has presented a wonderful sports event to the world. The concept of “green” is embodied in every corner and link of the stadium. All new venues adopt high standard green design and construction, and become models in energy conservation, low-carbon energy, waste and wastewater treatment. Among them, the mountain news center located in Yanqing competition area is also a large sample of low-carbon venues.
In the construction of green venues for the Winter Olympics, the photovoltaic power station on the roof plays a key role. The blue photovoltaic panel captures the sunlight jumping on the roof, and the light energy is continuously converted into electric energy, which is then transmitted to the venue through the inverter.
It is estimated that the installed capacity of the Winter Olympics project is 129.6 kW and the annual power generation is 153000 kwh. As the first building photovoltaic integrated application project in Yanqing competition area of Beijing 2022 Winter Olympics, the green energy generated by the photovoltaic roof of the news center is equivalent to the annual emission reduction of about 152.54 tons of carbon dioxide.
spontaneous self use and surplus electricity on the Internet
The Beijing Winter Olympic Games will actively build low-carbon venues, build ultra-low energy consumption demonstration projects, promote the transformation of low-carbon and energy conservation of venues, strengthen the management of energy consumption and carbon emissions in venue operation, and strive to achieve that all venues meet the low-carbon and energy-saving standards. In the construction stage, the venue will make rational use of Cecep Solar Energy Co.Ltd(000591) , wind energy, geothermal energy and other renewable energy according to the construction energy requirements, local climate and natural resource conditions.
The Mountain News Center in Yanqing competition area made good use of Cecep Solar Energy Co.Ltd(000591) during its construction. The black monocrystalline silicon double glass module was installed in 64 square skylights above the news media hall as part of the skylight building materials. Combined with the inclination design of the skylight itself, it realized the dual functions of building daylighting and photovoltaic power generation.
The photovoltaic power needs the inverter to convert the variable DC voltage into the AC of the municipal power frequency before it can be connected to the low-voltage distribution system of Yanqing Mountain News Center for the use of venues and provide green power for the Winter Olympic Games. The inverter of Ginlong Technologies Co.Ltd(300763) is selected for the project, which adopts the operation mode of self use and residual power on the Internet, and is connected to the low-voltage distribution system of Mountain News Center with one circuit of 0.4kV voltage level. This new project integrates the dual functions of modern architectural design, building daylighting and photovoltaic power generation. It will add a new environmental protection card to Yanqing competition area and make a contribution to the green Olympic Games.
As the venue adopts the “green building standard”, the Mountain News Center in Yanqing competition area has special requirements for technology during construction. Zhou Songcheng, chairman of Ningbo guangnian, told the Huaxia times that the construction period of the roof photovoltaic of the news center in Yanqing competition area of the Winter Olympic Games is tight and the requirements are high. After installation, the overall coordination needs to be highly integrated with the surrounding environment. For 64 skylight photovoltaic, firstly, the frameless hidden frame design is adopted in the selection of modules to replace traditional building materials, After installation, the gap is evenly filled with silica gel of the same color as the module. The light cable is installed in a hidden way along the edge of the aluminum gusset sector, and then the independent photovoltaic groups of 64 skylights are connected in series into a system through the roof bridge.
There was also a small twists and turns in the construction process. The construction period of Ningbo aluminum project is shortened because of the coordination of the cross construction plan, which means that the construction period of Ningbo aluminum project is shortened, and the construction period of Ningbo aluminum project is reduced. At the same time, it means that the construction period of Ningbo aluminum project is adjusted to be more than one year. In the installation of inverter, some small situations were also encountered. Because the design drawing is to install the inverter outside the roof, according to the requirements of the employer, the roof actually does not have the conditions for placing equipment. After multi-party negotiation, the Ginlong Technologies Co.Ltd(300763) inverter is installed in the power distribution room for unified management.
fast growth of series inverter
Since China proposed carbon peak and carbon neutralization, the energy industry has set off a green revolution, and the photovoltaic industry has ushered in new opportunities for development. According to the data provided by the national energy administration, in 2021, the newly installed capacity of photovoltaic in China was 54.88 million KW, the largest annual production over the years, including 25.6 million kw of photovoltaic power stations and 29.28 million kw of distributed photovoltaic. By the end of 2021, the cumulative installed capacity of photovoltaic power generation will be 306 million KW. In terms of the layout of new installed capacity, the regions with high installed capacity are North China, East China and central China, accounting for 39%, 19% and 15% of the new installed capacity in China respectively.
The advocacy of green winter Olympics has attracted more attention and help to clean energy such as photovoltaic and wind power. Lu Hefeng, assistant general manager and marketing director, said that the Winter Olympics has attracted the attention of the world to Beijing. Photovoltaic has delivered clean power to Beijing, provided clean energy for the Winter Olympics and reduced carbon emissions. The Mountain News Center in Yanqing competition area not only integrates modern architectural design, but also realizes the innovative application of photovoltaic power generation. The Beijing Municipal Development and Reform Commission also recently stated that it will speed up the research on the specific promotion measures of building photovoltaic integration technology in the six sunshine projects in Beijing, and promote the construction of demonstration projects in key areas and key regions. This is the best demonstration of building a new power system with new energy as the main body, and shows the world that China’s 3060 double carbon goal is in action.
Lu Hefeng is deeply honored to be able to contribute to the Beijing Winter Olympics. “I have been working in the photovoltaic industry for seven or eight years. As an employee of Ginlong Technologies Co.Ltd(300763) , I am very happy to see that my company’s products can contribute power to the Beijing Winter Olympics. I am proud of myself. Working steadily is the best reward for my work.”
With regard to the development prospect of photovoltaic inverter industry, the Research Report of CDB securities shows that with the high increase of installed capacity and strong certainty, the demand for new inverters is expected to accelerate. At the same time, the replacement demand of photovoltaic power station will continue to grow during the operation cycle because the service life of inverter 10-15 years is shorter than that of photovoltaic module 25-30 years. Series inverter has the advantages of high power generation, high reliability and easy installation and maintenance. With the rapid promotion of the whole county project and the accelerated development of distributed photovoltaic projects, the demand for series inverter will increase greatly. The energy storage inverter will open up new market space in the future.
