Which energy storage technologies are included in the 2020 cost and performance assessment?

The 2020 Cost and Performance Assessment provided installed costs for six energy storage technologies: lithium-ion (Li-ion) batteries, lead-acid batteries, vanadium redox flow batteries, pumped storage hydro, compressed-air energy storage, and hydrogen energy storage.

How much does energy storage cost in a cavern?

Therefore, efforts to reduce cost of storage via engineering design are expected to gain traction. As long-duration energy storage (diurnal and seasonal) becomes more relevant, it is important to quantify cost for incremental storage in the cavern. The incremental cost for CAES storage is estimated to be $0.12/kWh.

How many MW is a battery energy storage system?

For battery energy storage systems (BESS), the analysis was done for systems with rated power of 1, 10, and 100 megawatts (MW), with duration of 2, 4, 6, 8, and 10 hours. For PSH, 100 and 1,000 MW systems at 4- and 10-hour durations were considered. For CAES, in addition to these power and duration levels, 10,000 MW was also considered.

How much does a power plant cost?

Assuming these costs do not include substation/switchgear and transmission lines, the total costs are at the lower end of the $2,500 to 3,500/kW range provided in conversations with developers (Manwaring et al., 2020; Miller, 2020a).

How much does a powerhouse cost?

The sum of the powerhouse C&I and electromechanical costs comes out to $1,500/kW and is greater than the $1,260/kW reported in the 2012 Black & Veatch report, but the total project cost is similar as the latter assumed indirect costs to be 55% of direct costs (Black & Veatch, 2012).

Does discharge duration affect unit power costs?

Technologies with independent power and energy costs and low energy costs, like CAES, are only marginally impacted in terms of unit power costs by changes in discharge duration.