Active Power designs, manufactures, sells, and services flywheel-based uninterruptible power supply (UPS) products that use kinetic energy to provide short-term power as an alternative to conventional battery-based UPS products. The company also designs and manufactures modular infrastructure solutions that integrate critical power components into a pre-packaged, purpose built enclosure that can include Active Powers UPS products as a component. The companys products and solutions support and enable mission critical applications that cannot tolerate downtime due to a power disturbance across a number of industries including data centers, industrial/manufacturing, healthcare, transportation, broadcast, government, and casino/gaming. To date, Active Power has shipped more than 4,000 flywheels in UPS systems, delivering more than 1 gigawatt of critical backup power to customers in more than 50 countries around the world. The deal to acquire the business and assets of Active Power Inc (NASDAQ: ACPW), the flywheel energy storage specialist, has been completed.