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Title: Multiple Impacts of Energy Efficiency Technologies in Portugal
Authors: Tenente, Marcos 
Henriques, Carla 
Gomes, Álvaro 
Silva, Patrícia Pereira da 
Trigo, António
Keywords: Energy efficiency; Hybrid input–output lifecycle analysis; Multiple benefits
Issue Date: 2022
Publisher: Springer Nature Switzerland AG
Project: POAT-01-6177-ERDF-000044 ADEPT: Evaluation of Co-Financed Intervention Policies in Enterprises 
Serial title, monograph or event: EU Cohesion Policy Implementation - Evaluation Challenges and Opportunities
Abstract: Portuguese programs aimed at fostering Energy Efficiency (EE) measures often rely on cost–benefit approaches only considering the use phase and neglecting other potential impacts generated. Therefore, this work suggests a novel methodological framework by combining Hybrid Input–Output Lifecycle Analysis (HIO-LCA) with the Portuguese seasonal method for computing the households’ energy needs. A holistic assessment of the energy, economic, environmental, and social impacts connected with the adoption of EE solutions is conducted aimed at supporting decision-makers (DMs) in the design of suitable funding policies. For this purpose, 109,553 EE packages have been created by combining distinct thermal insulation options for roofs and façades, with the replacement of windows, also considering the use of space heating and cooling and domestic heating water systems. The findings indicate that it is possible to confirm that various energy efficiency packages can be used to achieve the best performance for most of the impacts considered. Specifically, savings-to-investment ratio (SIR), Greenhouse gases (GHG), and energy payback times (GPBT and EPBT) present the best performances for packages that exclusively employ extruded polystyrene (XPS) for roof insulation (packages 151 and 265). However, considering the remaining impacts created by the investment in energy efficiency measures, their best performances are obtained when roof and façades insulation is combined with the use of space heating and cooling and DHW systems to replace the existing equipment. If biomass is assumed to be carbon–neutral, solution 18,254 yields the greatest reduction in GHG emissions. Given these trade-offs, it is evident that multiobjective optimization methods employing the impacts and benefits assessed are crucial for helping DMs design future EE programs following their preferences.
ISBN: 9783031181603
ISSN: 2731-6890
DOI: 10.1007/978-3-031-18161-0_9
Rights: openAccess
Appears in Collections:I&D INESCC - Livros e Capítulos de Livros
FCTUC Eng.Electrotécnica - Livros e Capítulos de Livros
I&D CeBER - Livros e Capítulos de Livros

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