In order to cope with the global climate change and the resource and environmental crisis, the energy structure in China should be adjusted and optimized, to gradually increase the proportion of the renewable energy development and utilization, and to solve the bottleneck problem of the renewable energy storage. In China, there are a large number of abandoned mines, which provide a large underground space to construct underground pumped storage power stations for the renewable energy storage. Based on two examples in Germany, this paper reviews related issues from the viewpoints of the rock mechanics, the mining planning, the mechanical settings, the energy system planning, the legal, environmental impacts, the economic applicability, the evaluation principles and other technical key points. The basic directions and the main contents of the related researches are discussed.

storage of renewable energy  /  abandoned mines  /  underground pumped storage power station