The shares of RE sources are rising because global warming concerns and the depletion fossil fuels. However, due to its intermittent nature sustainable power supply depends on proper energy mix storage. By 2025, Ethiopia has planned export 24 TWh energy. Accordingly, generation is incorporating different dominated by hydropower. This paper reviewed up-to-date status PHES Ethiopia’s current situ...

Pumped thermal energy storage is seen as a possible alternative to pumped-hydro schemes for storing electricity at large scale and facilitating increased integration of renewable sources. This paper presents novel form pumped in which the thermodynamic cycle exploits temperature glide exhibited by zeotropic mixtures. The working fluid blend linear alkanes, optimised so obtain near-constant effe...