UPS Systems | Active Power Flywheel UPS | CLEANSOURCE XT UPS

CLEANSOURCE XT UPSThe Active Power CLEANSOURCE XT UPS Modular Series (SMS and MMS), with flywheel technology, uses stored energy to provide ride-through for up to 2 minutes, depending upon configuration, making them a clear alternative to modular static UPS systems that rely on battery storage.

The built-in flywheel energy storage takes up less than half the footprint of traditional battery-based systems, delivers efficiency up to 98% and lowers the total cost of ownership by up to 40% over the life of the product. This field-proven technology is based on a highly fault tolerant IGBT architecture designed to protect all critical loads, such as data centers, industrial processes and healthcare applications. These models are made in the USA.


  • Up to 98% efficient
  • Half the footprint of legacy battery-based UPS
  • Modular
  • Redundant fans and control power units
  • Lower installation costs
  • Easier maintenance and less service required
  • Remote Monitoring
  • Built-in power factor correction
  • Generator compatibility
  • Bypass pre-installed or optional depending on model
  • Seismic provisions depending on model
  • 20 year design life

Flywheel Technology

  • Stores 6.2 MJ of energy
  • Up to 2 minutes of runtime (load dependent)
  • Wide operating temperature range, ideal for rugged applications


CleanSource XT MMS UPS (250kW-1800kW)
Active Power CLEANSOURCE MMS UPS systems solve power problems for customers with mission critical facilities and offer a wide range of modular and redundant back-up power systems from 250kW to 2000kW.  The XT MMS modular UPS system has more than enough energy storage for diesel starting and synchronization, even when paralleling generating sets. Elimination of batteries saves space and weight, reduces site testing and maintenance and removes the need for routine replacement after a few years of service life.

CLEANSOURCE XT MMS G and Z Series UPS systems are modular and capable of multiple redundancy levels. Customers may readily expand their systems in line with their own growth needs by adding further modules over time. Each system consists of an input/output cabinet (IOC), a system cabinet (SC) and the ability to connect up to four 250kW modules with built-in wireway. In total, 8 modules can operate in a single system, providing up to 2000kW of high efficiency, battery-free UPS power. The XT MMS G Series UPS can be configured up to 500kW N+1. The XT MMS Z Series UPS can be configured up to 2000kW.

For more in-depth specifications, see the XT MMS data sheet.

The Active Power single, modular CLEANSOURCE XT SMS, 250kW, with flywheel technology, is the perfect combination of low total cost of ownership, superior reliability, and sustainability for any mission critical application. The XT SMS provides 78% more runtime than the CLEANSOURCE 300, delivering one minute at typical industry loads.

For more in-depth specifications, see the XT SMS data sheet.


For more information about Active Power Flywheel UPs system,
call 800-876-9373 or email [email protected].