State Grid Energy Storage Sector Analysis

Does grid energy storage have a supply chain resilience?

This report provides an overview of the supply chain resilience associated with several grid energy storage technologies. It provides a map of each technology’s supply chain, from the extraction of raw materials to the production of batteries or other storage systems, and discussion of each supply chain step.

What is the preferred choice for grid-scale storage?

Lithium iron phosphate batteries, a subset of lithium-ion batteries, are still the preferred choice for grid-scale storage based on cost and energy density considerations.

Can stationary energy storage improve grid reliability?

Although once considered the missing link for high levels of grid-tied renewable electricity, stationary energy storage is no longer seen as a barrier, but rather a real opportunity to identify the most cost-effective technologies for increasing grid reliability, resilience, and demand management.

What is the grid-scale battery storage capacity in 2022?

In 2022, the installed grid-scale battery storage capacity is 11 GW. Grid-scale battery storage in particular needs to grow significantly. In the Net Zero Scenario, installed grid-scale battery storage capacity expands 35-fold between 2022 and 2030 to nearly 970 GW.

What are other grid-scale storage technologies besides batteries?

Batteries are the most scalable type of grid-scale storage and the market has seen strong growth in recent years. Other storage technologies include compressed air and gravity storage, but they play a comparatively small role in current power systems.

What is the relationship between grid renewable content and storage duration?

The relationship between the grid renewable content and storage duration is complex and dependent on the details of the particular use scenario. Figure 62 illustrates this relationship and shows the estimated length of storage required versus grid renewable penetration.