Private company

Active Power

Logo: Unknown author Unknown author, Public domain, via Wikimedia Commons4

American uninterruptible power supply manufacturer

Active Power Inc. 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 devices that integrate critical power components into a pre-packaged, purpose built enclosure that can include Active Power’s UPS products as a component.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1992Founded1
  • Industryenergy technology1
  • HeadquartersAustin1
  • Websitewww.activepower.com
  • Legal formjoint-stock company1
  • LEI2549000RIF3L7FI2WJ093
  • StatusActive3
  • LEI statusLapsed (not renewed)3
  • Registered address30 N Gould St Ste R, 82801 Sheridan, United States3
  • Registered withBusiness Center (Wyoming Secretary of State), 2022-0011280693

Active Power Inc. 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 devices that integrate critical power components into a pre-packaged, purpose built enclosure that can include Active Power’s UPS products as a component.2

The story

1992–2000

Active Power was founded in 1992 as Magnetic Bearing Technologies, Inc., where the company manufactured magnetic bearings for a variety of applications.

In 1996, the company changed its name to Active Power and the following year introduced its first flywheel DC product.

In 1999, Active Power deployed its first flywheel UPS product which fully integrates flywheel energy storage and power electronics.

2001–2009

In 2007, the company opened its APAC headquarters in China.

2010–present

In 2010, The University of Texas at Austin chose to deploy Active Power UPS at its university data center.

In 2011, Active Power shipped its 3,000th flywheel.

In 2011, Active Power received a multimillion-dollar, multiple PowerHouse order from Hewlett-Packard.

In 2012, Heineken selected Active Power to provide critical power protection at its bottling facility off the coast of Madagascar.

Read the full text

In 2013, the company shipped its 4,000th flywheel including its next generation CleanSource HD UPS product.

In 2014, Capgemini selected Active Power to provide critical power infrastructure for a UK data center expansion.

In 2014, Verizon Terremark significantly expanded the power capacity of their Silicon Valley data center by deploying four PowerHouse units.

In 2016, it was acquired by Piller Power Systems. The new system with longer UPS runtime was launched.

From Wikipedia’s article on Active Power, shared under CC BY-SA 4.0.5

Timeline

  1. 1992Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5