What are energy storage systems?

Energy storage systems allow energy consumption to be separated in time from the production of energy, whether it be electrical or thermal energy. The storing of electricity typically occurs in chemical (e.g., lead acid batteries or lithium-ion batteries, to name just two of the best known) or mechanical means (e.g., pumped hydro storage).

Are battery electricity storage systems a good investment?

Battery electricity storage systems offer enormous deployment and cost-reduction potential, according to the IRENA study on Electricity storage and renewables: Costs and markets to 2030.

Can Electrical and thermal energy storage facilitate deep decarbonisation?

This need to accommodate variable energy supply while providing undisrupted output in the electricity sector, as well as efforts to integrate renewables into the end-use sectors has brought into sharp relief the significant potential, as well as crucial importance, of electrical and thermal energy storage to facilitate deep decarbonisation.