ABSTRACT
The entry presents four steps to model the supply and demand of energy resources using exergy analysis to transform the energy base of cities toward reducing CO2 emissions. These steps put forth a systemic view that shows how the mismatch between the supply and demand of exergy results in an excess of energy spending in current cities. Alongside a guide to the key equations of each step, the reference environments of 40 capital cities around the world are provided for ease of application. An analytical model further indicates a causal relation between exergy mismatches and compound CO2 emissions in the energy system. All steps are then exemplified based on a combined heat and power district heating network in Stockholm as the 2010 Green Capital. This entry shows that it is possible to make a difference in the quest to boost the speed and direction of curbing CO2 emissions through exergy matches as an urban goal for green cities of the future.
