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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

A sensitivity analysis of a cost optimality study on the energy retrofit of a single-family reference building in Portugal

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Tadeu, Sergio [1, 2] ; Tadeu, Antonio [1, 3] ; Simoes, Nuno [1, 3] ; Goncalves, Marcio [1] ; Prado, Racine [2]
Total Authors: 5
[1] ITeCons Inst Res & Technol Dev Construct Sci, Rua Pedro Hispano S-N, P-3030289 Coimbra - Portugal
[2] Univ Sao Paulo, Escola Politecn, Dept Civil Engn Construct PCC, Tr 2 83 Cidade Univ, BR-05508900 Sao Paulo - Brazil
[3] Univ Coimbra, FCTUC, Dept Civil Engn, ADAI LAETA, Polo 2, Rua Luis Reis Santos, P-3030788 Coimbra - Portugal
Total Affiliations: 3
Document type: Journal article
Source: ENERGY EFFICIENCY; v. 11, n. 6, p. 1411-1432, AUG 2018.
Web of Science Citations: 1

Improvement of the energy efficiency of residential buildings must ensure compliance with cost optimality criteria, assuming a specific lifespan of the building. At the same time, the energy retrofit of buildings ought to preserve their intrinsic architectural and heritage value. Portuguese residential buildings constructed before 1960 did not follow any energy efficiency rules. They represent 29% of the housing stock in the country and there is a high potential for increasing their energy efficiency. However, it costs more to implement envelope energy efficiency measures through retrofitting works than to provide for them in new buildings. An evaluation based on cost optimality criteria should therefore be performed. This work evaluates the energy performance of a Portuguese reference building typical of the pre-1960 building stock for different thicknesses of thermal insulation retrofit solutions (roof, facade, and ground floor) and systems. The study describes a sensitivity analysis that took a range of climate data, intervention costs, energy prices, discount rates, and energy needs into account. An energy needs factor dealt with the occupants' habits and the effective reduction of energy consumption compared with the estimated energy needs. (AU)

FAPESP's process: 16/00880-9 - Cost optimality of energy retrofit of buildings
Grantee:Sérgio Fernando Tadeu
Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE