Using mountains for long-term energy storage
The storage of energy for long periods of time is subject to special challenges. An IIASA researcher proposes using a combination of Mountain Gravity Energy Storage (MGES) and hydropower as a solution for this issue.Batteries are rapidly becoming less expensive and might soon offer a cheap short-term solution to store energy for daily energy needs. However, the long-term storage capabilities of batteries, for example, in a yearly cycle, will not be economically viable. Although pumped-hydro storage (PHS) technologies are an economically feasible choice for long-term energy storage with