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.
Composite Flywheel Design - Project Update: Reviews work done by the Genetic Algorithms Research and Application Group (the GARAGe) on the design of composite material flywheels
EV World: Flywheels Offer New Spin on Energy Storage: Flywheels Offer New Spin on Energy Storage - Columnist writes that electric storage will be affordable. Column has links to 4 companies. (June 29,2002)
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.
Flywheels channel at Power Design 365: articles, product information and vendors
Hybrid Electric Vehicle Program - HEV Flywheel Safety: Safety concerns associated with flywheel technology.
Liebert FS Advanced Flywheel Energy Storage System: Emerson Network Power announcement of new product.
Motor Generator - Brushless DC Motor: on motor types for high speed flywheel energy storage.
NASA P&PO: Aerospace Flywheel Development: wants 5x specific energy (Whr/lb), and 2x life, for spacecraft. Applications, accomplishments, events, development, details, business opportunities, images, papers/presentations, and resources/links.
NASA P&PO: Highlights and Accomplishments: NASA Glenn Research Center, Power & Propulsion Office news. Page shows 3 items on flywheel development. Pictures and contacts.
Pentadyne Selected as ``Most Promising Company'': at Energy Venture Fair V. Flywheel maker lauded.
PowerCorp: Markets PowerStore flywheel system.
Regenerative Power and Motion: promotes company. (includes popup ad)
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.
Technology Management & Funding Press Release: Announces addition of World Flywheel Consortium, Inc. (WFC) to its portfolio & demonstration unit with 0.5 kWh of energy and 40 kW of power. Contact info.
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.