Grid-Scale Energy Storage

The demand for large-scale battery ESS is on a steady rise, particularly in the United States. Regulatory initiatives such as FERC Order No. 2023, further streamlines the interconnection process for energy storage systems.

Advanced Battery Technologies

The industry is moving beyond traditional lithium-ion batteries towards more advanced solutions, including lithium-polymer batteries, which offer increased efficiency and safety. Additionally, there's a growing focus on lithium alternatives such as sodium-sulphur, zinc-air, and nickel-zinc batteries, offering improved sustainability and cost-effectiveness.

Long-Duration Energy Storage (LDES)

Reliability and resilience have become priorities as the grid infrastructure evolves, driving a surge in technologies such as flow batteries and Compressed Air Energy Storage (CAES), capable of storing energy for 10 hours or more, addressing the need for extended storage durations.

Meanwhile, lithium-ion technology is also advancing, now being integrated into battery ESS which sustains up to eight hours of storage — a significant leap from the traditional 4–6-hour duration.

Battery Cost Changes

In the last two years, battery cell prices have declined by an average of 25%. This price shift is largely due to intensified competition within the battery ESS market, coupled with an oversupply observed during the same period, pushing down the overall costs of batteries used internally.