- ASPES Engineering AG - Graphic comparisons of power, rotor speed, and energy. Bibliography includes English and German titles.
- Beacon Power - Makes 2 and 6 kilowatt-hour flywheel (kinetic-electric) energy storage units.
- FAQ: Kinetic Energy Storage - ASPES Engineering AG site with technical information and theory on flywheels and design. Photos of failures.
- Flywheel energy storage - Wikipedia - article includes equation for kinetic energy
- Flywheel Energy Systems, Inc. - Private corporation to "bring flywheel technology to the marketplace" Rotors, testing, and systems.
- Flywheel Theory - Basics of flywheel energy storage, with links to many other sites.
- Flywheels - Technical paper and information on exotic bearings for flywheels.
- Motor Generator - Brushless DC Motor - on motor types for high speed flywheel energy storage.
- PowerCorp - Markets PowerStore flywheel system.
- Regenerative Power and Motion: A Low-Loss Flywheel Battery - technology and applications of stationary model.
- RPM's Flywheel Battery - Flywheel battery described as having near-zero storage (idling) loss, unlimited service life with no maintenance, ultra-high power conversion efficiency.
- Tribology Systems, Inc. - Solid-lubricated bearing technology. Operational speeds can range up to 500,000 RPM, with temperatures up to 1000 F. Links to flywheel battery information.
Media publications
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