The UK's university ICT consortium (JISC) is providing a free ICT Energy and Carbon Footprinting Tool and a Cost and Carbon Comparison Tool. These were developed for assessing university campuses, but may be more widely applicable. The comparison tool is not as flexible as it may first appear as it just compares desktop PCs with thin clients.
1. An ICT Energy and Carbon Footprinting Tool to estimate the energy and carbon footprint of your ICT estate. Contains a worked example from the University of Sheffield. An updated version (August 2009) is designed to be more user friendly and incorporates changes based on feedback from other institutions. Detailed commentary by Chris Cartledge on how the University of Sheffield's energy and carbon footprint was calculated can also be downloaded.
2. A Cost and Carbon Comparison Tool for thick vs thin clients (Beta Version). An Excel tool designed to help Further and Higher Education Institutions estimate the costs and carbon emissions of thick (PCs) versus thin clients over a given evaluation period. An updated version will be posted by the end of August 2009.
From: Sustainable IT Tools, SusteIT, 2009