Lithium battery energy storage project cost analysis

What are base year costs for utility-scale battery energy storage systems?

Base year costs for utility-scale battery energy storage systems (BESSs) are based on a bottom-up cost model using the data and methodology for utility-scale BESS in (Ramasamy et al., 2023). The bottom-up BESS model accounts for major components, including the LIB pack, the inverter, and the balance of system (BOS) needed for the installation.

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.

Do battery storage technologies use financial assumptions?

The battery storage technologies do not calculate levelized cost of energy (LCOE) or levelized cost of storage (LCOS) and so do not use financial assumptions. Therefore, all parameters are the same for the research and development (R&D) and Markets & Policies Financials cases.

Are battery storage projects financially viable?

Different countries have various schemes, like feed-in tariffs or grants, which can significantly impact the financial viability of battery storage projects. Market trends indicate a continuing decrease in the cost of battery storage, making it an increasingly viable option for both grid and off-grid applications.

What is the future of lithium batteries?

The elimination of critical minerals (such as cobalt and nickel) from lithium batteries, and new processes that decrease the cost of battery materials such as cathodes, anodes, and electrolytes, are key enablers of future growth in the materials-processing industry.

How long does a lithium-ion battery storage system last?

As per the Energy Storage Association, the average lifespan of a lithium-ion battery storage system can be around 10 to 15 years. The ROI is thus a long-term consideration, with break-even points varying greatly based on usage patterns, local energy prices, and available incentives.