How big is the current energy storage scale

What is grid-scale energy storage?

When asked to define grid-scale energy storage, it’s important to start by explaining what “grid-scale” means. Grid-scale generally indicates the size and capacity of energy storage and generation facilities, as well as how the battery is used.

What types of energy storage are included?

Other storage includes compressed air energy storage, flywheel and thermal storage. Hydrogen electrolysers are not included. Global installed energy storage capacity by scenario, 2023 and 2030 - Chart and data by the International Energy Agency.

How big is the global battery storage pipeline?

The global battery storage project pipeline for the next two years reached 748 GWh, indicating a surge of the global battery storage ecosystem. Notably, in November 2024, COP29 agreed to a global energy storage target of 1,500 GW by 2030, up from existing 340 GW, covering all technologies, including BESS and pumped hydro.

What is a battery energy storage system?

Lithium-ion battery energy storage systems are the most common electrochemical battery and can store large amounts of energy. Examples of products on the market include the Tesla Megapack and Fluence Gridstack. Flow batteries for grid-scale energy storage collect energy in liquid electrolytes, have a long cycle life, and are scalable.

How long does a grid-scale battery last?

The lifespan of a grid-scale battery depends on its chemistry, how long the battery has been used, and how often it’s charged and discharged. Applications of lithium-ion batteries in grid-scale energy storage systems last about 10–15 years. Lead-acid is between 5–10 years.

How much battery storage is needed to achieve energy transition goals?

In fact, at least 1200 GW of battery storage capacity will be needed if the world wants to achieve 2030 energy transition goals. While Pumped storage hydropower (PSH) is a traditional storage method that accounts for a majority of global storage still, it faces challenges which make alternative storage solutions a more attractive option.