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PrevA data-driven methodology for enhanced measurement and verification of energy efficiency savings in commercial buildings (Español)16 septiembre 2021NextOperation and energy flexibility evaluation of direct load controlled buildings equipped with heat pumps (Español)23 septiembre 2021
  • Scientific publication

Baseline Energy Use Modeling and Characterization in Tertiary Buildings Using an Interpretable Bayesian Linear Regression Methodology (Español)

16/09/2021
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Baseline Energy Use Modeling and Characterization in Tertiary Buildings Using an Interpretable Bayesian Linear Regression Methodology

 

ENERGIES 2021, 14(17), 5556, September 2021

DOI: https://doi.org/10.3390/en14175556

Authors: B. Grillonea ;G. Mora ; S. Danova ; Jordi Ciprianoa,b ; F. Lazzaria ;  A. Sumperc

a Building Energy and Environment Group, Centre Internacional de Mètodes Numèrics a l’Enginyeria, CIMNE, Spain
b Applied Physics Section of the Environmental Science Department, University of Lleida, Jaume II 69, 25001 Lleida, Spain
c ECentre d’Innovació Tecnològica en Convertidors Estàtics i Accionaments (CITCEA-UPC), Departament d’Enginyeria Elèctrica, ETS d’Enginyeria Industrial de Barcelona, Universitat Politècnica de Catalunya, 08028 Barcelona, Spain

VIEW PUBLICATION
Abstract:

Interpretable and scalable data-driven methodologies providing high granularity baseline predictions of energy use in buildings are essential for the accurate measurement and verification of energy renovation projects and have the potential of unlocking considerable investments in energy efficiency worldwide. Bayesian methodologies have been demonstrated to hold great potential for energy baseline modelling, by providing richer and more valuable information using intuitive mathematics.

This paper proposes a Bayesian linear regression methodology for hourly baseline energy consumption predictions in commercial buildings. The methodology also enables a detailed characterization of the analyzed buildings through the detection of typical electricity usage profiles and the estimation of the weather dependence. The effects of different Bayesian model specifications were tested, including the use of different prior distributions, predictor variables, posterior estimation techniques, and the implementation of multilevel regression. The approach was tested on an open dataset containing two years of electricity meter readings at an hourly frequency for 1578 non-residential buildings. The best performing model specifications were identified, among the ones tested.

The results show that the methodology developed is able to provide accurate high granularity baseline predictions, while also being intuitive and explainable. The building consumption characterization provides actionable information that can be used by energy managers to improve the performance of the analyzed facilities.

  • Gerard Mor
  • Jordi Cipriano
  • Stoyan Danov
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Publications

Book (6) Energy that matters (5) Scientific publication (10) Uncategorised (1)

Researchers

Biodigesters (5) Daniel Pérez (1) Eloi Gabaldon (2) Energy empowerment & user behaviour (1) Energy positive living (1) Energy that Matters (1) Gerard Mor (10) Jaime Martí-Herrero (7) Jordi Carbonell (1) Jordi Cipriano (9) Stoyan Danov (5)

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