Green-IT is a current trend in all areas of information technology. We as a database research group focus on the energy-efficiency aspects of database processing. To explore new algorithms, energy-saving, evaluate various data processing approaches, and monitor energy consumption, we have developed WattDB, a research prototype of an energy-aware DBMS, where we can research our vision of an energy-proportional database cluster.

WattDB is a newly developed Database Management System running on a dynamically forming cluster of nodes. By adjusting the number of active nodes, performance and power consumption can be tuned.