The energy monitoring system e2watch displays the consumption data of your buildings. With the internet-based visualisation, operators and users of buildings can carry out efficient energy consumption controlling. Continuously rising energy costs require efficient energy management. With e2watch, consumption data of electricity, water and heat as well as IoT sensor data can be collected and displayed. The energy management solution, which is provided as Software as a Service, can be individualized as a white label product (optional) in the layout and adapted to the wishes of a resale customer. Conceived as a Big Data Management solution, e2watch is based on a state-of-the-art technological platform and has various interfaces for data communication with the measuring equipment on site. e2watch is a multi-client capable software with a modular structure, is operated in a certified municipal computer centre in Germany and is certified by TÜV Rheinland.