Flywheel energy storage cost calculation table

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.

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 .

What is a flywheel energy storage system (fess)?

Modern flywheel energy storage system (FESS) only began in the 1970’s. With the development of high tense material, magnetic bearing technology, permanent magnetic motor, power electronics and advanced control strategy, FESS regains interests from many research organizations and companies, such as NASA’s GRC, US Army and Active Power Inc.

What are the components of a flywheel energy storage system?

A overview of system components for a flywheel energy storage system. Calnetix/Vycon Flywheel , which includes a steel flywheel and an electrical machine, is designed for UPS. Ricardo TorqStor , which includes a composite flywheel and magnetic gear, is designed for automotive applications.

Could flywheels be the future of energy storage?

Flywheels, one of the earliest forms of energy storage, could play a significant role in the transformation of the electrical power system into one that is fully sustainable yet low cost.

How do you calculate the energy capacity of a flywheel?

The following equations describe the energy capacity of a flywheel: (2) E m = α α α K σ / ρ (3) E v = α α α K σ where α ′ is the safety factor, α ′ ′ the depth of discharge factor, α ′ ′ ′ the ratio of rotating mass to the total system mass, σ the material’s tensile strength, K the shape factor, and ρ the density.