Energy storage power station capacity and cost

How much does a storage energy capacity cost?

We estimate that cost-competitively meeting baseload demand 100% of the time requires storage energy capacity costs below $20/kWh. If other sources meet demand 5% of the time, electricity costs fall and the energy capacity cost target rises to $150/kWh.

How much does energy capacity cost?

Ranges of storage power capacity costs ($0–$2,000/kW) and energy capacity costs ($0–$300/kWh) were used as simulation inputs, in order to cover a variety of cost combinations for current and potential future technologies.

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 storage system cost?

The costs of energy from optimized systems are summarized in Figure 3 for two different storage technology cost structures, with power and energy capacity costs of $1,000/kW and $20/kWh (Tech I) and $700/kW and $150/kWh (Tech II).

How much energy is stored in the world?

Worldwide electricity storage operating capacity totals 159,000 MW, or about 6,400 MW if pumped hydro storage is excluded. The DOE data is current as of February 2020 (Sandia 2020). Pumped hydro makes up 152 GW or 96% of worldwide energy storage capacity operating today.

How does storage energy capacity affect solar power?

As storage energy capacity costs increase, the solar power plant size increases (B), optimal storage duration decreases (C), and storage power capacity relative to output power increases (D). Solar cost of ownership is estimated as $1,000/kW for all three cases, and the EAF is 100%.