We installed a screensaver onto every employee’s computer. Using some rather startling facts, the screensaver creates a visual illusion: that inactive monitors around the office have been transformed into everyday appliances associated with high energy use – such as a microwave or a colour copier.Our idea communicates the right message, in the right place, at the right time. The screensaver – which activates after five minutes of inactivity – is the perfect media to persuade employees to switch off their monitors.We distributed the screensaver to major clients and set up a public domain site for members of the public.

Immediate drop in number of monitors left on overnight – from approximately 60% to 5%. Annual energy saving for London office is an estimated £18,000. (Costing under £5,000 to build, it pays for itself three times over every year.) C02 saving equates to 58 tonnes, proving that a high impact message with the right use of media can have a hugely positive impact.Over 4,000 downloads from our public site within six weeks of launch, so it has spread virally. It's also being successfully employed by Ford, P&G and Land Rover and has won at UK creative awards.