Active Power battery-free backup power solutions delivers ultimate power protection for mission critical operations. Integrated with Active Power's patented flywheel motor-generator technology, CleanSource DC & cleanSource UPS (Uninterruptible Power Supply) systems provides highly reliable back-up power portection while dramatically reducing space and cost. CleanSource DC spans 100kW-2000kW, while CleanSource UPS covers power ratings from 65kVA-3600kVA. CleanSource XR, based on Active Power's new TACAS technology, uses thermal and compressed air energy storage to provide the world's first minute-for-minute alternative to batteries. The system can provide 85 kW for 15 minutes, or 20 kWh.