Kinetic Traction Systems
Encyclopedia
Kinetic Traction Systems is a business founded in November 2010, producing energy storage systems for electric railways.

Technology

Kinetic Traction Systems' main product uses flywheel energy storage technology developed by Pentadyne Power Corp; staff from Pentadyne joined Kinetic. The 36000 RPM flyweels are originally based on uranium centrifuge
Gas centrifuge
A gas centrifuge is a device that performs isotope separation of gases. A centrifuge relies on the principles of centripetal force accelerating molecules so that particles of different masses are physically separated in a gradient along the radius of a rotating container.A prominent use of gas...

 technology developed by Urenco

KTS' rail-side device uses a brushless DC motor/generator per to spin up the flywheel to store electrical energy (for instance, from regenerative braking on trains) as kinetic energy; and later to converted back to electrical energy.on demand. This allows significant energy-efficiency improvements in urban rail systems; it has been used by NYC Transit and the London Underground
London Underground
The London Underground is a rapid transit system serving a large part of Greater London and some parts of Buckinghamshire, Hertfordshire and Essex in England...

.

Usable stored energy is approximately 6 MJ or 1.7 kWh. The devices can provide bursts of 200kW.
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