
Active Power CLEANSOURCE® XT
CLEANSOURCE® XT comes as a single module (SMS) and as a modular system (MMS). The MMS version was introduced as an extended run-time system for data centres and process industry.
- Data centres and process industry
- Sites wanting longer ride-through without batteries
Technical data
| Manufacturer | Active Power (Piller) |
| Type | Flywheel UPS |
| Power | 225 kW (SMS) / 225–1800 kW (MMS) @ 50 Hz |
| Energy | 6.2 MJ per flywheel |
| Efficiency | Up to 98 % |
| Ride-through | Up to 2 minutes (load dependent) |
| Ambient | 0–40 °C |
Source: www.activepower.com; www.activepower.com.
Technology
How it works
Each flywheel stores 6.2 MJ and provides up to 2 minutes of run time depending on load – ample for diesel start and synchronisation.
The system is built from 225 kW modules (50 Hz) and expands up to 1800 kW.

Application
Where it fits
- Data centres and process industry
- Sites wanting longer ride-through without batteries
Versions and options
- SMS or MMS
- CSView and BMS integration

Service
Operation and maintenance
Like the rest of the CleanSource family: annual check-up and bearing changes at fixed intervals.
A rotary plant should always be load-tested at commissioning – stepped load, utility failures and transfer to engine.

Other models from Piller
Read more at Bluecircle
Norwerk’s partner Bluecircle has in-depth pages on the topic.
Do you have a project or a system that needs service?
Send us the load, required autonomy and voltage level – or describe the task. We will come back with a solution sized for your operation.