Policy analysis and technical evaluation index of multi-energy complementary projects in China

Abstract

Multi-energy complementary renewable energy system is an efficient energy supply system based on thermoelectric-gas-storage coupling technology to realize full renewable energy supply in local regions, with biomass power generation as the basic energy, wind, light and storage as the supplement. Since 2000, China has promulgated a series of policies related to multi-energy complementarity to promote energy reform and renewable energy development. China supports the construction of multi-energy complementarity, micro-grid and renewable energy projects. By optimizing the process route of “source-network-load-storage” and adopting chain and vertical integrated feedback as auxiliary technical measures, the deficiencies of renewable energy projects in energy production, storage, transportation, conversion, use and recovery can be complete. Intelligent dispatch through “end-pipe-cloud” integrated energy management platform can compensate the characteristics of non-flexible operation, uncertainty and volatility of renewable energy. According to the characteristics of renewable energy in multi-energy complementary projects, technical evaluation index, economic evaluation index and social benefit index are established, and the advantages and disadvantages of renewable energy projects are evaluated by multi-dimensional indicators.