This article describes a techno-economic model for pumped thermal energy storage systems based on recuperated Joule-Brayton cycles and two-tank liquid storage. Models have been developed each component, with particular emphasis the heat exchangers. Economic metrics such as power capital costs (i.e., per-kW per-kWh capacity) levelized cost of are evaluated by gathering numerous correlations from...

The combination of distributed generation and energy storage technology has become a mainstream operation mode to ensure reliable power supply when is connected the grid. This paper first introduces two typical technologies: pumped battery storage. Then, it technologies represented by “ubiquitous Internet things” in new stage industry, such as virtual plant, smart micro grid electric vehicle. F...