One of the larger projects my team and I are involved in at present is one to consolidate the University's IT estate. Like any large organisation the dependency on IT has never been greater and around the clock availability of key systems is now an expectation (but not always a reality - see my blog post re. Outages!). With many buildings and a wide range of servers our aim is to consolidate as much as possible and reduce the distribution of servers and storage serving users across the campus.
Being a University we will always have an elements of distributed equipment however where it makes economic sense to do so we will aim to provide the service centrally. Good examples of this are systems such as email, authentication, storage, network services, telephony, etc.
Not only are we reducing energy consumption but we are also reducing our carbon output. I was recently interviewed by Graeme Burton of Computing and the article was published in this weeks Computing and can be found at http://www.computing.co.uk/ctg/feature/2291483/driving-down-costs-and-carbon-emissions-at-the-university-of-st-andrews