Comparison between newly developed gravity energy storage and pumped hydro storage

Abstract

The world is currently facing a new energy crisis, which has prompted a focus on energy storage technologies to solve the global energy crisis. Taking advantage of the height difference between two dams and turning them into one is the main difference between gravity energy storage (GES) and pumped hydro storage (PHS) presented in this paper. This paper first introduces the basic principles of each of these two technologies, and then compares the two technologies through economic and parametric perspectives, showing the advantages of GES technology such as higher efficiency, easier construction at less cost, and the promise of GES. Some case studies may not reveal convincing trends in GES development, but they can still be used to compare the technology's present state of development. This research stresses that GES has higher promise as a newly created technology. Both technologies are promising and excellent renewable energy sources, but to truly evaluate which is superior in the long run, economic factors must be analyzed and compared. GES technologies are also being researched to assist the world in alleviating the pressures of the energy crisis and the environmental issues produced by stored energy.