Electricity storage is one of the main ways to enable a higher share of variable renewable electricity such as wind and solar, the other being improved interconnections, flexible conventional generation plant, and demand-side management. Pumped hydropower storage (PHS) is currently the only...

Electricity storage is one of the main ways to enable a higher share of variable renewable electricity such as wind and solar, the other being improved interconnections, flexible conventional generation plant, and demand-side management. Pumped hydropower storage (PHS) is currently the only...

Dwindling fossil fuel resources and pressures to reduce greenhouse gas emissions will result in a more diverse range of generation portfolios for future electricity systems. Irrespective of the portfolio mix the overarching requirement for all electricity suppliers and system operators is to...

The substantial increase in power generation from variable renewable sources has led to renewed interest in energy storage. Pumped hydropower remains the only mature and widely-adopted utility-scale energy storage technology. However, the selection and development of new pumped hydropower sites...