The paper presents the MEFLO ranking method and the Simple Integrated System Management (SISMan) concept for assessing the feasibility of integrated energy and Waste Management System (WMS) alternatives. The MEFLO method is based on dividing the decision-making process into five modules, including mass, energy and financial flows, legislative criteria (e.g., environmental restrictions and target values) and other decision support criteria, such as the local political guidelines. The utilisation of the MEFLO method is presented by comparing five system alternatives, including energy recovery from household waste. The calculations needed in the MEFLO assessment were performed with the SISMan spreadsheet calculation model developed at the Lappeenranta University of Technology. The MEFLO method and the SISMan concept contribute to the design and assessment of different integrated management systems. Any of the appropriate available tools can be used in the model forming and assessment processes, according to the proposed methods.
Keywords: waste management systems, WMSs, energy supply systems, ESSs, waste to energy, energy from waste, EfW, decision support models, cogeneration, industrial ecology, ranking methods, feasibility assessment, energy recovery, municipal solid waste, municipal services, integrated management