The bills are in and we're bang on target for project OFF-ON.

Over the past 3 months, we've reduced our electricity consumption by an average of 9%.

January saw the best average reduction of -12%, which we hope to keep up.

So we've now saved almost £700 for Cheryl's Children's Home and lit up almost 1 and a half classrooms.

Our "computers unplugged" campaign is working brilliantly, thanks to the efforts of John Kirkham. The number of computers left plugged in over night/on weekends has dropped from 37 to 5. 

As Tony D says "you've got to break some eggs on the way", and our first eggs to go were the eco kettles. Great for domestic use, but not ideal for 200 avid tea drinkers.

We've replaced them with a temporary alternative, marked with cup quantity measures. They'll be auctioned off for charity once we get our eco friendly wall kettles.

We've also been lucky enough to have Stefana Broadbent and two of her UCL MA tech anthropologists (Brian and Luiz) studying the project.

They've been looking at the bits that are working, the bits that aren't and most importantly, why.

We'll keep you posted on the results over the next couple of weeks.

W+K planner Sophie Dollar today presented our project Off-On at the M&S Sustainability Conference at the Queen Elizabeth Conference Centre in Westminster.

Off-On's key objective is to encourage employees to do more good by behaving in a more environmentally responsible way.

Today's annual conference is part of M&S's commitment to corporate social responsibility and is part of 'Plan A' – an initiative the company launched in 2007 which has set out 180 commitments to achieve by 2015.  M&S's ultimate goal is to become the world's most sustainable, major retailer.

Sophie presented Off-On as part of the afternoon session: 'How to engage your employees' – and continued to spread the word that a democratic, simple and accessible idea is the key to sustainable behaviour change.

Judging by the string of delegates queuing to congratulate her following her slot – people are certainly listening!