Investment cost of flywheel energy storage technology

How much does a flywheel energy storage system cost?

The amortized capital costs are $130.26 and $92.01/kW-year for composite and steel rotor FESSs, respectively. The corresponding LCOSs are $189.94 and $146.41/MWh, respectively. Table 4. Cost summary for 20 MW/5MWh flywheel energy storage systems.

Why are composite rotor flywheel energy storage systems more expensive?

The differences in the TIC of the two systems are due to differences in rotor and bearing costs. The composite rotor flywheel energy storage system costs more than the steel rotor flywheel energy storage system because composite materials are still in the research and development stage and material and manufacturing costs are high.

How does a flywheel energy storage system work?

Flywheel Energy Storage (FES) uses a rotor accelerated at a very high speed and maintains the energy in the system as rotational energy. When energy is removed from the system, the flywheel's rotation is reduced due to energy conservation. Adding energy to the system increases its speed.

How much does a steel rotor flywheel cost?

The steel rotor flywheel has a lower capital cost and levelized cost of storage. The costs of composite and steel rotor flywheels are $190 and $146/MWh, respectively. Flywheel energy storage systems are increasingly being considered as a promising alternative to electro-chemical batteries for short-duration utility applications.

Do flywheel energy storage systems support fast charging stations?

Fast charging stations supported by flywheel energy storage systems. In 2020 IEEE 5th international conference on computing communication and automation (ICCCA) (pp. 109–113).

What is the power rating of a flywheel energy storage system?

Utility-scale energy storage systems for stationary applications typically have power ratings of 1 MW or more . The largest flywheel energy storage is in New York, USA by Beacon Power with a power rating of 20 MW and 15 min discharge duration .