From the G20 Hangzhou Summit in 2016 to the 13th National Student Sports Games in 2017, and then to the 19th Asian Games and the 4th Asian Para Games in 2023, Lai Hanbin has participated in the power conservation work of a number of major events becoming a trailblazer in power conservation and amassing significant experience.

"Since August, there have been several weekly test exhibitions, and each has to make efforts in power preservation to meet trade exhibition standards." Recently, he tested the exhibition and protection of electricity at the Hangzhou Convention and Exhibition Center morning sessions emphasizing the importance of first-line electrical safety personnel.

Innovating the 'Intelligent Green Network' for the Asian Games

"The scenic resources in the Northwest of China are transformed into gurgling electric energy to light up the Asian Games venues by the Qiantang River and West Lake," said Lai, reflecting on the 2023 Hangzhou Asian Games. In September 2021, Lai and 13 employees of the Hangzhou Power Supply Company in Zhejiang Province were appointed as the first "zero carbon engineers" in the history of the Asian Games by the Hangzhou Asian Games Organizing Committee. 

"To build the first carbon-neutral Asian Games and Asian Para Games in history" was a solemn commitment given by the Hangzhou Asian Organizing Committee. One of the responsibilities of the "zero carbon engineer" is to make the Asian Games venues environmentally friendly. Since getting the offer, Lai has been running to the "Big Lotus" - the Hangzhou Olympic Sports Center. He and his colleagues repeatedly analyzed and tested the energy consumption of the "Big Lotus," communicated with the staff member of the venue to discuss energy saving schemes, and often spent more than 10 hours a day on the job.

During the investigation process, Lai found out that the air conditioning energy consumption in the "Big Lotus" accounted for nearly half of the total energy use in the venue. Lai and his team started searching for solutions that would save as much electricity as possible while also ensuring the utmost comfort for athletes and spectators. After repeated discussions, Lai and other members of the "Zero Carbon Engineer" team proposed an "intelligent green network for terminal carbon reduction." They divided the "Big Lotus" into more than 70 areas, and installed more than 400 sets of environmental sensing equipment in the stadium, monitoring temperature, humidity, light, crowd density and other data in real time. When the equipment senses that the number of people in the stadium has increased and the indoor temperature is rising, the operating temperature of the air conditioner will decrease. "In order to save energy efficiently, we use a different management mode during game seasons and off-season," added Lai. Eventually, the 2023 Hangzhou Asian Games and Asian Para Games emitted a total of 882,900 tons of greenhouse gases. Through the use of green electricity, they reduced emissions by 22,000 tons, and with social donations for carbon offsetting totaling 1,099,900 tons, they achieved carbon neutrality for the first time in the history of both the Asian Games and the Asian Para Games. The project won the second prize for typical experience in new power system construction at the 2023 Zhejiang Electric Power Industry Association awards.

 
Pioneering Innovative Mechanisms and Processes

During the Asian Games and the Asian Para Games in Hangzhou, the deputy director of the Xiaoshan district power supply company's Asian Games power protection office, Lai hanbin, set up roles of curator, director, line chief, station chief, and duty chief and launched the "five long co-insurance" mechanism, which ensures comprehensive power protection throughout the construction, operation, and game event phases.

Lai also led efforts to enhance emergency response plans and optimize on-site management. Under his leadership, the team checked over 20 distribution rooms in the venue, more than 600 sets of high and low voltage cabinets, 1,182 distribution boxes and thousands of lamp holders and sockets, and discovered and addressed nearly 300 defects.

The opening and closing ceremonies of the Asian Games and the Asian Paralympic Games in Hangzhou require high power supply reliability. In order to successfully complete the opening and closing ceremony performance power preservation task, Lai and Xiaoshan district power supply company power preservation team worked overnight, staying at the stadium for 50 hours in order to guarantee a reliable power supply.

Preparing for the Third Digital Trade Fair 

In September this year, the third Digital Trade Fair will be held at the Hangzhou Convention and Exhibition Center. On December 18, 2023, the Xiaoshan District Power Supply Company officially launched the third Digital Trade Fair power supply security project and Lai Hanbin once again devoted himself to ensuring power supply security.

"The construction area of the Grand Exhibition Center reaches 1.34 million square meters, which is six times that of the Hangzhou Olympic Sports Center Stadium. A larger building area means more electrical facilities and electrical equipment. According to the hidden danger investigation work plan, it takes an average of two days to complete the mapping of an exhibition hall, and we also need to be more focused and careful," Lai said.

On June 15, at the Xiaoshan district power supply company's "100-day Action Oath meeting," Lai read out the 100-day plan, clarifying the steps, objectives and various measures for the implementation of electricity protection. According to the deployment arrangements of the Xiaoshan district power supply company's power preservation office, Lai's team bears great responsibility and has been tasked with the power preservation of the Hangzhou Convention and Exhibition Center. Lai will lead the team in completing the construction of the core power preservation system, the operational tests of the power preservation system, the improvement of the power preservation system, and the actual power preservation work.

Since the beginning of this year, Lai has organized and optimized the 3rd version of the "Hangzhou Convention and Exhibition Center Power Preservation Plan," and led the preparation of the Hangzhou Convention and Exhibition Center load test plan, as well as several other trade association power preservation plans. "Only by continuously optimizing the power preservation program can we avoid mistakes and be ready for  what we are going to do," Lai said.