A methodology for selecting a green technology portfolio based on synergy

Green manufacturing (GM) is a kind of modern manufacturing mode with the full consideration of resources consumption and environmental impact. The publication of EMS ISO14000, OHSAS18000, environmental label system and environmental regulations has also promoted the practice of GM in real production to a large extent. In order to help enterprises to effectively implement GM with limited environmental investment, we present a methodology for selecting a green technology portfolio from the perspective of environmental strategy. The enterprise benefits derived from each portfolio, including economic and environmental benefits, are evaluated by six main objectives: cost, quality, time, service, resource consumption, and environmental impact. In addition, the synergies among the different types of technologies in one green technology portfolio are also taken into account. Lastly, an illustrative example provides some insights into the application of this methodology.