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.

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.

Are lithium ion batteries more expensive?

Different battery technologies (e.g., lithium-ion, lead-acid, saltwater) come with different costs. Lithium-ion batteries are typically more expensive, but they're also more efficient and have longer lifespans. The more energy a battery can store (measured in kilowatt-hours or kWh), the more it costs.

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.

How much does Lib storage cost?

Figure 1. 2022 U.S. utility-scale LIB storage costs for durations of 2–10 hours (60 MW DC) in $/kWh EPC: engineering, procurement, and construction Figure 2. 2022 U.S. utility-scale LIB storage costs for durations of 2–10 hours (60 MW DC) in $/kW

Do longer duration batteries have a lower capital cost?

On a $/kWh basis, longer duration batteries have a lower capital cost, and on a $/kW basis, shorter duration batteries have a lower capital cost. Figure 6 (left) also demonstrates why it is critical to cite the duration whenever providing a capital cost in $/kWh or $/kW. Figure 6.