Light for offices and communication
VHV Group, Hanover | DE
The workplace of the future is already a reality at the head office of
Hannoversche Lebensversicherung AG. This highly efficient building
with triple glazing and thermally insulating façade elements uses
geothermal probes, heat pumps and district heating to meet its
considerably reduced energy requirements.
The future starts now
The client wanted a highly efficient office building that provided
maximum flexibility and was ideally prepared to cope with a large
number of anticipated alterations in room layouts. It was looking for
a company that supported lighting management externally, took
over facility management and performed maintenance.
Lighting control strategies
All the luminaires and blinds in the three-part building complex are
controlled by a TCP/IP-based LITENET lighting management sys-
tem. All settings and changes to the system can be made from a
central location. This was achieved by integrating the system into a
building-wide OPC visual display. Individually addressed DALI lumi-
naires make it possible to respond flexibly to changes.
Available daylight is measured by a central daylight measuring head.
Exterior blinds with a light guidance function are adjusted appropri-
ately depending on the position of the sun. The required dimming
level of each individual luminaire to ensure constant lighting levels is
recalculated and set at one-minute intervals. Presence detectors
reduce the operating hours of luminaires in line with staffing levels.
Employees can use wireless light switches to adapt lighting scenes
to suit their personal preferences completely independently of any
wiring in the building.
Key data
• 8,000 m² of office space divided up between three buildings
• 1,500 workstations
• 60% energy saving by using daylight-based management
• System support provided by trained building services specialists
and Zumtobel
Central daylight-based control and blinds
control | LUXMATE LITENET
