A Case Study on a Stochastic-Based Optimisation Approach towards the Integration of Photovoltaic Panels in Multi-Residential Social Housing

The socioeconomic reality and the energy retrofit potential of the social housing neighbourhoods in Portugal are stimulating challenges to be addressed by research to pursue suitable energy efficient strategies to be integrated into these buildings. Therefore, this study explored a stochastic-based...

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Autores principales:	Rui Oliveira, Ricardo M.S.F. Almeida, António Figueiredo, Romeu Vicente
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	social housing energy demand energy refurbishment internal gains occupation rate life cycle cost Technology T
Acceso en línea:	https://doaj.org/article/de4e7c4b84e840f1bbf7a7b81307ef87
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spelling	oai:doaj.org-article:de4e7c4b84e840f1bbf7a7b81307ef872021-11-25T17:27:17ZA Case Study on a Stochastic-Based Optimisation Approach towards the Integration of Photovoltaic Panels in Multi-Residential Social Housing10.3390/en142276151996-1073https://doaj.org/article/de4e7c4b84e840f1bbf7a7b81307ef872021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/22/7615https://doaj.org/toc/1996-1073The socioeconomic reality and the energy retrofit potential of the social housing neighbourhoods in Portugal are stimulating challenges to be addressed by research to pursue suitable energy efficient strategies to be integrated into these buildings. Therefore, this study explored a stochastic-based optimisation approach towards the integration of photovoltaic (PV) panels, considering different scenarios that combine the occupancy rate, the internal gains, the envelope refurbishment and the heating system efficiency. The optimisation approach has as its objective the minimisation of the life cycle cost of the photovoltaic system while using a limited space area on the rooftop for its installation. This study allowed concluding that the use of passive measures such as improving the thermal performance of the building envelope is essential to attain a lower optimal-sizing of a photovoltaic installation. The results reveal a decreasing trend in the PV optimal sizing, attaining a reduction up to 30% of the total number of PV panels installed on the sloped rooftop in several scenarios with 50% of occupancy rate. However, the impact can be greater when passive measures are coupled to more efficient heating systems, with higher COP, which result in a decrease up to 64% of the number of PV panels. Thus, the approach proposed is of paramount importance to aid in the decision-making process of design and sizing of photovoltaic installation, highlighting the practical application potential for social housing and a contribution for mitigation of the energy poverty of low-income families that live in these buildings.Rui OliveiraRicardo M.S.F. AlmeidaAntónio FigueiredoRomeu VicenteMDPI AGarticlesocial housingenergy demandenergy refurbishmentinternal gainsoccupation ratelife cycle costTechnologyTENEnergies, Vol 14, Iss 7615, p 7615 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	social housing energy demand energy refurbishment internal gains occupation rate life cycle cost Technology T
spellingShingle	social housing energy demand energy refurbishment internal gains occupation rate life cycle cost Technology T Rui Oliveira Ricardo M.S.F. Almeida António Figueiredo Romeu Vicente A Case Study on a Stochastic-Based Optimisation Approach towards the Integration of Photovoltaic Panels in Multi-Residential Social Housing
description	The socioeconomic reality and the energy retrofit potential of the social housing neighbourhoods in Portugal are stimulating challenges to be addressed by research to pursue suitable energy efficient strategies to be integrated into these buildings. Therefore, this study explored a stochastic-based optimisation approach towards the integration of photovoltaic (PV) panels, considering different scenarios that combine the occupancy rate, the internal gains, the envelope refurbishment and the heating system efficiency. The optimisation approach has as its objective the minimisation of the life cycle cost of the photovoltaic system while using a limited space area on the rooftop for its installation. This study allowed concluding that the use of passive measures such as improving the thermal performance of the building envelope is essential to attain a lower optimal-sizing of a photovoltaic installation. The results reveal a decreasing trend in the PV optimal sizing, attaining a reduction up to 30% of the total number of PV panels installed on the sloped rooftop in several scenarios with 50% of occupancy rate. However, the impact can be greater when passive measures are coupled to more efficient heating systems, with higher COP, which result in a decrease up to 64% of the number of PV panels. Thus, the approach proposed is of paramount importance to aid in the decision-making process of design and sizing of photovoltaic installation, highlighting the practical application potential for social housing and a contribution for mitigation of the energy poverty of low-income families that live in these buildings.
format	article
author	Rui Oliveira Ricardo M.S.F. Almeida António Figueiredo Romeu Vicente
author_facet	Rui Oliveira Ricardo M.S.F. Almeida António Figueiredo Romeu Vicente
author_sort	Rui Oliveira
title	A Case Study on a Stochastic-Based Optimisation Approach towards the Integration of Photovoltaic Panels in Multi-Residential Social Housing
title_short	A Case Study on a Stochastic-Based Optimisation Approach towards the Integration of Photovoltaic Panels in Multi-Residential Social Housing
title_full	A Case Study on a Stochastic-Based Optimisation Approach towards the Integration of Photovoltaic Panels in Multi-Residential Social Housing
title_fullStr	A Case Study on a Stochastic-Based Optimisation Approach towards the Integration of Photovoltaic Panels in Multi-Residential Social Housing
title_full_unstemmed	A Case Study on a Stochastic-Based Optimisation Approach towards the Integration of Photovoltaic Panels in Multi-Residential Social Housing
title_sort	case study on a stochastic-based optimisation approach towards the integration of photovoltaic panels in multi-residential social housing
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/de4e7c4b84e840f1bbf7a7b81307ef87
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A Case Study on a Stochastic-Based Optimisation Approach towards the Integration of Photovoltaic Panels in Multi-Residential Social Housing

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