Automotive Hybrid Power Limited was established in 2006 to develop advanced flywheel energy storage technology for vehicle applications. In 2008, Williams F1 acquired a significant shareholding in Automotive Hybrid Power. The company was subsequently renamed Williams Hybrid Power Limited (WHP) and relocated from Norwich to Williams F1’s headquarters in Oxfordshire. Williams Hybrid Power Ltd has developed a novel, patented technology aimed at providing a cost effective, environmentally friendly, solution for mobile energy recovery and storage. Having developed the technology for the demanding and harsh environment of Formula One racing, the company is now making the technology available to meet the demands of the wider transport and mobile energy storage market. The flywheel is electrically driven, and can be considered as an electro mechanical battery, which can replace a conventional battery or Ultra capacitor pack in a hybrid system. Our flywheel technology has unique features which enable us to provide class leading solutions for hybrid vehicles. The unique feature, protected by worldwide patent, is the Magnetically Loaded Composite. In essence this feature means that we can produce a wholly composite flywheel, which integrates the magnets of the electric motor into the composite. The key benefit this brings is that the flywheel system can be made significantly smaller and lighter than conventional flywheels, and also runs at very high efficiencies of between 97 - 99 % The flywheel system is manufactured using conventional, scalable, manufacturing technologies and therefore provides the opportunity for cost effective volume production.