Abstract
Districts can be considered as a system of complex interconnections, interactions, relationships and flows. Therefore, a comprehensive approach is essential for effective decision-making with regards to energy efficiency improvement. When addressing interventions with a wider scale, the range of possible interventions is greater, as well as the possibilities of new business models to make bankable the interventions. However certain barriers can appear linked to the interactions among stakeholders, which are usually more complex than when tackling individual actuations. To overcome these barriers it is necessary to establish integrated and systemic methodologies able to support stakeholders to implement better collaboration approaches and carry out more informed decisions. These decisions should be based on a set of relevant indicators, calculated at district level, capturing the different stages that form the retrofitting process (from the diagnosis to the final assessment). This paper presents a holistic design methodology based on the application of a Multi-Criteria Decision Making approach that allows designing optimised solutions. This methodology is based on the evaluation of a set of District Sustainability Indicators while proposing an Integrated Project Delivery method improving the communications among stakeholders and, therefore, the decision-making process.
Highlights
The Energy 2020 strategy posed the objective of increasing energy efficiency as one way to tackle the challenge to lower the EU GHG emissions
The main innovative aspect of the methodology (Figure 1) derives from the utilization of the Integrated Project Delivery (IPD) concept accompanied by the Building Information Modelling (BIM) principles in order to improve the efficiency during all the phases of the retrofitting process and optimize the project results
For a district energy retrofitting, it is recommended that the main decision making board is covered by a Project Management Team (PMT), which is a committee shaped by the main representative of the
Summary
The Energy 2020 strategy posed the objective of increasing energy efficiency as one way to tackle the challenge to lower the EU GHG emissions. The creation of economies of scale is a key factor for their feasibility and success of this kind of projects In this context, the European project R2CITIES aims at developing and validating an integrated and systemic methodology for energy retrofitting at urban scale, providing a methodological and scientific instrument able to support the evaluation and implementation of solutions at district level. The European project R2CITIES aims at developing and validating an integrated and systemic methodology for energy retrofitting at urban scale, providing a methodological and scientific instrument able to support the evaluation and implementation of solutions at district level This methodology is based on the Multi-Criteria Decision Analysis (MCDA) evaluation method that explicitly considers multiple criteria in decision-making environments [4]. This methodology presents a step beyond the state-of-the-art tackling the change of scale from buildings to districts and adopting an optimized management structure to improve the efficiency of the process
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