From Open Energy Information
The Times Integrated Assessment Model (TIAM) comprises several thousand technologies in all sectors of the energy system. It is characterized by several technical and economic parameters and by emission coefficients for the three main greenhouse gases (GHGs). This is a useful market analysis tool for users who wish to compare renewable energy technologies.
UNEP. (August 2009). "Integrated Assessment: Mainstreaming sustainability into policymaking--A guidance manual" http://www.unep.ch/etb/publications/AI%20guidance%202009/UNEP%20IA%20final.pdf