Design of Energy Supply System for Existing Rural Buildings Based on 100% Renewable Energy

With China's “carbon peak, carbon neutral” goal put forward, energy conservation and emission reduction has become the current mainstream topic. In order to solve the problem of low energy utilization in rural areas, this paper designed a set of complementary energy supply system based on solar energy, wind energy, biomass energy and other renewable energy for a typical rural building in Gansu province, and analyzed the reliability of the system. The results show that the system can fully meet the daily electricity demand, heat demand and gas demand of users. The system can save 3,372kg of standard coal, reduce 8,835kg of CO
2
emissions, 29kg of SO
2
emissions and 25kg of nitrogen oxide emissions every year, and save about 3430 yuan.