Existing and new arrangements of pumped-hydro storage plants

Development and assessment of geothermal‐based underground pumped hydroenergy storage system integrated with organic Rankine cycle and district heating

“…Environment temperature is a significant parameter for the exergetic performance of an energy system since the exergy content of a system or stream is defined according to the reference conditions [see Equation (1)]. Therefore, environmental temperature (T 0 ) plays a critical role in exergy efficiency.…”

“…Pumped ES also called pumped hydroelectric storage covers 97% of the global capacity of storage power and 99% of the stored energy around the world. 1 Chine has the highest installed capacity of pumped ES around the world with the 29.9 GW according to 2018 data. 2 The most significant disadvantage of the pumped ES is to provide the height difference and the water mass required for the system.…”

“…Pumped ES systems are used for both shifting the peak energy demand to off‐peak periods and storing renewables for later use. Pumped ES also called pumped hydroelectric storage covers 97% of the global capacity of storage power and 99% of the stored energy around the world 1 . Chine has the highest installed capacity of pumped ES around the world with the 29.9 GW according to 2018 data 2 .…”

“…Hunt et al 1 have reviewed existing and planned pumped energy storage systems. Types of pumped energy storage systems have also been reviewed and compared.…”

CO2conversion by plasma: how to get efficient CO2conversion and high energy efficiency

“…Short-term storage, for hours, days or weeks, can be achieved through battery storage or pumped-storage. 10,11 However, long-term storage for seasons or years, is also required to ensure a stable energy supply and strategic security over several seasons. This kind of storage is not only required for a long time, but also involves a huge scale of energy storage: hundreds of terawatt hours (TWhs).…”