Energy Savings after Comprehensive Renovations of the Building: A Case Study in the United Kingdom and Italy

Olman Araya Mejías, Cristina Montalvo, Agustín García-Berrocal, María Cubillo and Daniel Gordaliza
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Olman Araya Mejías: Energy and Fuels Department, Universidad Politécnica de Madrid (UPM), Ríos Rosas 21, 28003 Madrid, Spain
Cristina Montalvo: Energy and Fuels Department, Universidad Politécnica de Madrid (UPM), Ríos Rosas 21, 28003 Madrid, Spain
Agustín García-Berrocal: Energy and Fuels Department, Universidad Politécnica de Madrid (UPM), Ríos Rosas 21, 28003 Madrid, Spain
María Cubillo: Superior Technical School of Buildings, Universidad Politécnica de Madrid (UPM), Avenida Juan de Herrera 6, 28040 Madrid, Spain
Daniel Gordaliza: Sinceo2 Consultora Energética, Calle Arte 21, 28033 Madrid, Spain

Energies, 2021, vol. 14, issue 20, 1-18

Abstract: The housing sector is one of the largest energy consumers in the world. There is an urgent need to renovate the housing stock of existing buildings. Therefore, it is necessary to correctly calculate the energy savings that can be obtained in a renovation project. The correct collection of energy data, the main variables that affect consumption, and people’s usage habits are fundamental elements to quantify the success or consequences that occur in an energy efficiency project. This research study quantifies the results of the energy savings of the European project DREEAM (District Scale Renovation for Energy Efficiency and Market Uptake). This article aims to facilitate the calculation of energy savings with mathematical linear regression models in two different climatic zones in Europe. Furthermore, it aims to improve the calculation of energy savings with mathematical models based on energy data and variables that affect consumption before and after renovations. The variables used for the calculation are hours of use, degree days, and reading days. Tenant behavior has been found to play an important role in actual measured savings. Additionally, the energy consumption patterns of the tenants are different after the renovations.

Keywords: energy efficiency; energy use; energy retrofitting of buildings; energy savings evaluation; measurement; verification; monitoring of energy data (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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