ABSTRACT: With the proposal of the strategic goal of “carbon peaking and carbon neutrality”, building energy conservation and emission reduction has entered a new stage of development. How to further reduce building carbon emissions is an urgent problem to be solved in the architecture field. In the 2021 Solar Decathlon China, we built a near-zero carbon experimental house of about 150 square meters. The house plans to use a solar-hydrogen energy linkage system as an energy supply source, and use hydrogen energy and electric energy as a building energy storage unit. And the heat generated by the electrolysis of water for hydrogen production is stored in the water storage tank, so as to provide domestic hot water for the building and reduce the carbon emission during the operation stage of the building. At the same time, the building adopts a prefabricated building system to improve the construction speed of the building and improve the recycling rate of the building during the demolition stage, so as to achieve near-zero carbon emissions of the building.
 

servere cold region, rural residence, solar energy, hydrogen energy, near zero carbon