Rehman, Shafiqur; Al-Hadhrami, Luai M.; Alam, Md. Mahbub - In: Renewable and Sustainable Energy Reviews 44 (2015) C, pp. 586-598
The pumped hydro energy storage (PHES) is a well-established and commercially-acceptable technology for utility-scale electricity storage and has been used since as early as the 1890s. Hydro power is not only a renewable and sustainable energy source, but its flexibility and storage capacity...