This afternoon, Zhang Jianhua, director of the National Energy Administration, Yu Bing, deputy director, and the main responsible comrades of the Department of Electricity, the Department of New and Renewable Energy, the Department of Electricity Safety Supervision, and the North China Energy Regulatory Bureau visited the China International Solar Decathlon venue for research and guidance, and first visited our work SOLAR ARK 3.0.

Team leader Zhang Junjun firstly introduced the design concept of "Solar Ark 3.0" to the leaders and guests, that is, how to create a multi-functional house with integrated solar energy storage and charging. After the team's introduction, Mr. Zhang Jianhua watched the video of the construction of "Solar Ark 3.0" and praised the standardized design as the starting point for the whole life cycle of carbon reduction. He also kindly inquired about the advantages of wind and solar complementarity and carefully inspected the team's 5kW vertical axis wind turbine. "Solar Ark 3.0" is designed to complement the photovoltaic power generation in extreme weather by wind power generation through wind and landscape complementation, which is more suitable for the climate of Zhangbei, and it is estimated that photovoltaic accounts for about 95% of the annual power generation and wind power account for about 5%.