Research on energy purchase combination strategies for multiple energy commercial buildings considering multistage market uncertainties

Abstract

With the gradual development of the power markets, various types of uncertainty are gradually increasing. The overlapping effects of various uncertainties have a significant impact on the operational economy of multiple energy commercial buildings (MECB) relying on various energy sources. MECB can purchase electricity from multiple stages of the market, such as spot from medium to long term and the market electricity price risk varies at different stages. Therefore, this paper investigates the energy purchasing strategies of MECB in multistage markets, taking into account various uncertainties. Considering the actual operational characteristics of MECB, this paper proposes a MECB low-carbon economic optimization model and establishes an energy purchase strategy model for MECB under various risk scenarios based on random optimization theory. Research has found that in scenarios with higher risks, MECB will participate more conservatively in the market. By simultaneously participating in the medium to long-term market and spot market, MECB can effectively avoid the cost risks brought about by various uncertainties.