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Type: Artigo
Title: Attractiveness of using photovoltaic panels in a building connected to a mainly renewable electricity grid
Author: Saade, M. R. M.
Da Silva, M. G.
Gomes, V.
Abstract: Photovoltaic (PV) panels contribute to overall building's loads, but generally have their impacts offset at the operational stage. For increasingly renewable electricity grids, PV's contribution to lowering non-renewable energy becomes less significant. This paper aims at investigating the non-renewable cumulative energy demand (CEDnren) and global warming potential (GWP) payback times associated to onsite PV generation in the highly renewable Brazilian grid, considering a 50-year building service life. Operational energy consumption was simulated in Energy Plus. CEDnren and GWP were calculated through the CED method and CML-IA, respectively. SimaPro 7.3 and Ecoinvent 2.2 supported performed LCAs. Different PV settings were analyzed to rank the most effective technological options. Amorphous and single-Si panels performed worst (around 17 years of non-renewable CED payback time, whilst for GWP the payback time was much shorter for all technologies). PV's production and replacement loads played a significant role, therefore technological investments to increase panels' durability and improve manufacturing efficiency could ensure its attractiveness
Subject: Silício amorfo
Edificios inteligentes
Country: Reino Unido
Editor: Institute of Physics Publishing
Rights: Aberto
Identifier DOI: 10.1088/1755-1315/290/1/012084
Date Issue: 2019
Appears in Collections:FEC - Artigos e Outros Documentos

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