Does battery storage cost reduce over time?

The projections are developed from an analysis of recent publications that include utility-scale storage costs. The suite of publications demonstrates wide variation in projected cost reductions for battery storage over time.

Are lithium-ion batteries the future of energy storage?

Lithium-ion batteries delivered 82% of 2024 deployments, cementing their role as the backbone of the United States energy storage market. Cost drops below USD 300 per kWh, and cycle lives exceeding 5,000 cycles reinforce their suitability across duration bands.

Are battery storage costs based on long-term planning models?

Battery storage costs have evolved rapidly over the past several years, necessitating an update to storage cost projections used in long-term planning models and other activities. This work documents the development of these projections, which are based on recent publications of storage costs.

How much does a 4 hour battery system cost?

Figure ES-2 shows the overall capital cost for a 4-hour battery system based on those projections, with storage costs of $245/kWh, $326/kWh, and $403/kWh in 2030 and $159/kWh, $226/kWh, and $348/kWh in 2050.

Which states have more battery storage?

Only California brought gigawatt hours online, 6 GWh, thanks to the state’s focus on longer-duration storage. Arizona, Colorado, Florida, and Vermont also added storage last quarter, hinting at a much larger appetite for grid-scale battery deployment nationwide.

What are battery cost projections for 4 hour lithium-ion systems?

Battery cost projections for 4-hour lithium-ion systems, with values normalized relative to 2022. The high, mid, and low cost projections developed in this work are shown as bolded lines. Figure ES-2.