ABSTRACT

ABSTRACT: This study investigates the impact on the energy system in the city of Linköping, Sweden, if different amounts of waste are used as a fuel. Two different levels of electricity prices are also studied. The effects regarding system costs and carbon dioxide emission are examined. The study is carried out using the optimisation model MODEST. The most important results are the following; it is economically favourable for the energy utility to use waste as fuel.An increased electricity price leads to more locally produced electricity resulting in a lower cost for the district heating production. It also means lower carbon dioxide emissions globally since the assumption is made that the locally generated electricity replaces electricity produced in coal condensing power plants.

INTRODUCTION