Energy Storage

Powerbridge Flywheel

The Powerbridge is a battery-free alternative for DC energy supply in a Piller UPS system. A vertically mounted flywheel and generator, the Powerbridge is designed to operate within a speed range of 3,600 to 1,500 rpm. The unit can deliver 8 seconds of ride-through at 2.4 MW load and proportionately longer ride-through at lesser loads. The highly reliable, easily maintainable Powerbridge is an environmentally clean source of back up power.


Common batteries, both sealed and flooded, are a widely utilized source of back up energy storage for Piller power quality systems. Solutions can include battery cabinets. Piller offers comprehensive monitoring and maintenance to assure reliable battery operation and to prolong their life. Services are turnkey, including removal, installation, testing and reporting.