Realtime environmental systems monitor for the world's first sustainable danceclub. WATT Rotterdam is the world's first sustainable danceclub. This sustainability is accomplished by incorporating a gray water system (collecting rain water from the roof), an efficient climate management system and a minimal waste policy a.o. These systems do not only reduce energy consumption, they also generate data that is used by the WATT Systems Monitor to visualize the activity of the danceclub. The software shows, that as more people enter the buidling all systems start working harder and the buidling comes to life. A dynamic VJ show is generated based on the club's overall activity and a CNN style bizbar provides live updates on the activity of all the systems. The goal of this dynamic digital installation is to raise awareness among visitors about their ecological impact in a positive way and illustrate the interconnection between human activity and the infrastructure that facilitates this activity.