Who has fitted it
Barclays Bank
Trillium
Norwich Union
Alastair Sawday Publishing
Ministry for Communications and National Projects, Malta
Julia Hayles, author 'The New Green Consumer Guide'
Windsor Castle, the Royal Bindery
National Portrait gallery
Bradford Council, Flockton House
Royal Bank of Scotland
Norwich Union
Ewan Group plc for Southern Water
Integral Facilities Management
Inspace Maintaine
Crown and County corts of the seven counties of the South-West
Doncaster NHS Trust
Anglia Pub Company
TEC Construction
Wimpey Homes Relmfield Builders Ltd
Cornhill Estates, Poundbury
The Eagle Brewery
North Devon District Hospital
Princess Alexandra Hospital, Harlow
AXA insurance centre, Bristol
Carillion Ltd, Leeds
The Lundy Company Ltd
Coolfactor Group
High Trenhouse, Malham
BOCM Pauls Ltd
And thousands of others.