At the heart of the Siemens Crystal building in London’s Royal Victoria Docks, is a Siemens Desigo building energy management system (BEMS) from Siemens, a KNX UK member.  It controls the building to ensure it operates in the most energy efficient manner. Meeting room chilled beams, trench heating, blinds and lighting are controlled using devices on a KNX network.

A combination of occupancy and CO2 sensors in the meeting rooms put these areas at their “day” setpoints only when a room is occupied. All of this can be controlled via room units, and occupants can use third party touch screens in each meeting room. This total room automation solution balances energy efficiency with occupant comfort. The Crystal has achieved both BREEAM Outstanding and LEED Platinum certification and is the first building in the world to reach the top rating in both systems.

The Crystal uses renewable energy sources including wind power from the London Array of offshore wind farms and building integrated photovoltaics. The building also uses a ground source heat pump system to meet all of its heating and cooling requirements. Desigo enables the many renewable building services elements of The Crystal to be used at their most effective levels because it is compatible with a range of open protocols such as BACnet, KNX, Mbus and others. It also provides reporting features so the building management team understand how energy is being used and keep energy use within required parameters.

For more information contact KNX UK, PO Box 4082, Bracknell, Berkshire, RG42 9EQ, Email: Website: