For a recent (November 2011) presentation on energy usage in the University, and some of the initiatives to reduce this see this presentation.
For a comprehensive presentation on the the use of energy by the university, what the plans are to reduce it, and who is in charge, please click here.
For a summary of the action plan for chemistry please click here.
An example of an energy saving plan in Radcliffe House is here.
Somewhat unconnected but it might save money information on academic equipment exchange here.