KEY POINTS:
New Zealand's biggest commercial office company is responding to power supply concerns by encouraging its tenants to step up their energy savings.
AMP NZ Office Trust (ANZO) said non-essential lighting - such as facade and artwork lighting - has been progressively switched off from Friday, while daytime foyer lighting levels will also be reduced.
The company has also written to the tenants of its buildings outlining areas for potential energy savings, and will work with them to achieve reductions.
Two of their tenants, AMP and State Insurance, have already decided that the illuminated signage on top of the buildings they occupy in Auckland and Wellington respectively will remain off until power supplies become more certain.
ANZO boss Robert Lang said that in a typical office tower, tenant premises accounted for 55 per cent of energy use, 15 per cent by airconditioning plant and 30 per cent in common areas such as lobbies.
Some aspects, such as lighting in stairwells and carparks, will stay lit as they are are essential for health and safety reasons.
