SPIonExcel—Fast and easy calculation of the Sustainable Process Index via computer

Life cycle analysis (LCA) is becoming increasingly important information in the course of technological development. Comprehensive LCAs usually require large resources in terms of time and money. It is therefore necessary to include easily applicable tools into the technological development process that give an overall picture of environmental impacts of products and processes and on top of that offer insights into the steps of a life cycle that exert the largest environmental pressures and to convert this information into engineering optimisation guidelines. Life cycle assessment with the Sustainable Process Index (SPI), a member of the ecological footprint family, is well suited for this task. SPIonExcel was developed to bring this methodology into an easy applicable form.