Helping the 2022 Beijing Winter Olympics-Zhongshan Ruike New Energy Co., Ltd. successfully signed th

As the only city in the history of the Olympic Games that has hosted both the Summer and Winter Olympics, Beijing is about to usher in a new landmark building, the main venue of the 2022 Winter Olympics and Paralympics-National Speed Skating Oval. The building is located in the Olympic Park in Chaoyang District, Beijing, with a total construction area of 80,000 square meters. It is the main venue for all ice events in the Winter Olympics and Paralympics.

Beijing Institute of Architectural Design (Group) Co., Ltd has undertaken the construction and renovation of many important venues for the Beijing 2022 Winter Olympics and Paralympics. Among them, the National Speed Skating Oval is a landmark new ice competition venue in Beijing.There have 2 difficulties in venue design, one is the structure, and the other is the energy consumption. Designer Zheng Fang solved these problems perfectly with the most advanced building materials and design concepts in the world.

First, the roof of the structure has a large span, and its structural design and material selection are very critical. The national speed skating oval uses the key construction technology of the large-span saddle-shaped cable net structure of the project. The roof cable net is the first domestically developed high-vanadium enclosed cable. It is the world’s largest single-layer bidirectional orthogonal saddle-shaped cable net structure. And the amount of steel used in the roof system is only about one-fourth of the traditional roof, which perfectly embodies the concept of energy saving, environmental protection, and green Olympics.

Secondly, while the structure and appearance meet the standards, the energy consumption of the entire building should be minimized and conform to the green, low-carbon, circular, and sustainable production and lifestyle advocated by the country. The project also used new materials to the extreme in terms of energy saving on the facade. The blue area of the National Speed Skating oval adopt the most advanced cadmium telluride technology in China, and the special coating process is used on the inside of the glass to show the appearance Beautiful metal characteristics, elegant and luxurious, in PV products.

While being beautiful, it also can provide power to venue and reduce building energy consumption. This glass belt is also known as "Ice Ribbons", and the venue has also received extensive attention from the facade for its unique design of "Ice Ribbons". The architect said that the application of advanced technologies and concepts will enable the National Speed Skating oval to be at the international advanced level in terms of intelligence and environmental protection, and implement the national three-star standard for green buildings. Energy, waste and wastewater treatment have become demonstration projects.

National Speed Skating oval will be able to accommodate 12,000 spectators, 22 "ice ribbons" form a unique curved glass curtain wall, and the huge ice surface of 12,000 square meters inside will create an Asian record. "Ice Ribbon" is composed of more than 12,000 pieces of power generating glass.

Real BIPV Products

The power generation glass that constitutes the "Ice Ribbon" is the latest generation product-BIPV PV power glass specially customized for this project by Zhongshan Ruike New Energy Co., Ltd. This glass is specially designed for the appearance requirements, combined with the metal color coating process, and the use of high-strength laminated structure to integrate the building body. It’s real BIPV products. Not only can be used on the facade like architectural glass, it can also generate electricity to provide electricity for the building.

Zhongshan Ruike New Energy Co., Ltd., invested by Mingyang Smart Energy Group Co., Ltd., was established as a joint venture with Dr. Stanford's team in the United States, focusing on the R&D, production, sales and overall solutions of cadmium telluride (CdTe) thin-film solar cells.

Zhongshan Ruike has a world-class technology research and development team. After years of independent research and development and design of core equipment, the team has realized automation, information and intelligence. At the same time, it has the characteristics of high yield, fast coating speed, and good product stability. Second in the world in efficiency, first in China, and first in single-line production capacity in China, independent design of core equipment breaks foreign monopoly. In early 2018, Zhongshan Ruike built the first 100-megawatt CdTe thin-film module production line in China with fully independent design, fully independent research and development, and fully independent intellectual property rights.

As many as 40 process steps are highly automated and integrated to form the first domestic CdTe production line with Industry 4.0 standards. For the second phase expansion, the designed single-line capacity will exceed 300MW, and the module efficiency will be above 18%, the highest in the world. The future factory will be a smart factory fully automated, intelligent, data driven, unmanned, and with unique characteristics.

Zhongshan Ruike Company designed and developed special BIPV products for the National Speed Skating Stadium, which represents the world's most advanced BIPV technology. It drastically improves buildings’ energy efficiency; seamlessly integrates with the design; and reduces their carbon footprint.

High Absorptance

The absorption coefficient is as high as 1E-4/cm in the visible light range and 95% of the photons can be absorbed in the 1µm thick absorption layer.

High conversion Efficiency   

CdTe has a zinc blende (ZnS) structure with a bond length of 2.806Å and a lattice constant of 6.481Å. The cadmium telluride material is a direct band gap semiconductor with a band gap of 1.45~~1.47eV, the theoretical photoelectric conversion efficiency of cadmium telluride thin film solar cells is about 30%.

Low temperature coefficient

Generally, within a certain temperature range, the efficiency of solar cells changes linearly with temperature. An increase in temperature will cause the open circuit voltage to drop, the short-circuit current will rise slightly, and the battery conversion efficiency will drop. CdTe has better temperature characteristics and can produce more electricity under high temperature conditions than other solar energy.

Low degradation

From the perspective of long-term efficiency degradation (25 years): The current crystalline silicon solar cell efficiency declines by 20%, while the conversion efficiency degradation of CdTe solar modules has been studied by the American Renewable Energy Laboratory, which has a low long-term linear decline Rate, about 12.5%.

Better weak light effect

CdTe solar farm has a higher return on investment, especially in areas with high temperature, cloudy weather and low air cleanliness (smoggy).

Other benefit

Borderless design, no dust accumulation, reducing later operation and maintenance costs.

Adopt construction-grade fire protection rating, safe and reliable, and eliminate fire hazards.

Wide application scenarios

It can be applied to a variety of application scenarios, such as building facades, industrial and commercial roofs, and household use.

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