Energy storage using weights hydraulically lifted above ground
International Journal of Environmental Studies
Energy storage, Hydraulic lifting, Pumped hydro
Renewable energy sources constitute an ever-growing share of the total electrical market; but, the intermittency and instability issues make it difficult to dispatch these sources directly into the grid. Energy storage represents a promising solution to overcome this obstacle. Among energy storage solutions, pumped hydro energy storage is largely considered the most technologically and financially feasible, though having some drawbacks. In this paper, a new design is introduced to address the major challenges associated with the conventional pumped hydro energy storage. The proposed storage solution does not require tall water tank towers or long piping; rendering it more cost effective and implementable. It is also scalable to operate over a wide range of capacities depending on the electrical surpluses. Beyond this, the design provides a constant pressure and faster discharge, furnishing a quick response to instantaneous demand fluctuations. © 2013 Taylor & Francis.
Vasel-Be-Hagh, Ahmadreza; Carriveau, Rupp; and Ting, David S.K.. (2013). Energy storage using weights hydraulically lifted above ground. International Journal of Environmental Studies, 70 (5), 792-799.