Dispersed settlement patterns can hinder the net-zero transition: Evidence from Ireland

Limiting the growth of final energy demand helps meet the steep greenhouse gas (GHG) reduction trajectories required to address climate change, and can also bring wider sustainability benefits. Integrated Assessment Modelling (IAM) and energy systems modelling analyses are increasingly including low...

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Main Authors: Ankita Gaur, Jason McGuire, Vera O’Riordan, John Curtis, Hannah Daly
Format: Article
Language:English
Published: Elsevier 2024-01-01
Series:Energy Strategy Reviews
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2211467X24000038
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author Ankita Gaur
Jason McGuire
Vera O’Riordan
John Curtis
Hannah Daly
author_facet Ankita Gaur
Jason McGuire
Vera O’Riordan
John Curtis
Hannah Daly
author_sort Ankita Gaur
collection DOAJ
description Limiting the growth of final energy demand helps meet the steep greenhouse gas (GHG) reduction trajectories required to address climate change, and can also bring wider sustainability benefits. Integrated Assessment Modelling (IAM) and energy systems modelling analyses are increasingly including low energy demand (LED) measures in GHG mitigation scenarios, but their granularity and empirical basis is typically low, limiting actionable insights. Here, we contribute to addressing this gap by examining the role of spatial settlement patterns as a driver of energy service demand, particularly in the transport and residential sectors. We focus on Ireland, which has enacted ambitious decarbonisation commitments in law, that are challenging to deliver partially due to a large proportion of the population living in rural one-off housing. We perform exploratory data analysis to estimate the mathematical relationship between various energy service demands and the dispersal of population, and calculate the energy service demand level and CO2 emissions per capita at various population densities. We also review the indirect impact spatial settlement patterns have on climate mitigation, via the viability of enabling low-carbon infrastructure. We find that higher density settlement patterns are associated with lower energy service demands and greater potential for infrastructure to enable the low carbon transition. We also find that residential and transport GHG emissions are, respectively, 62% and 52% lower for populations living in the highest density regions than in the lowest. Finally, we discuss a path forward for incorporating this empirical analysis into future mitigation scenarios.
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spelling doaj.art-de883cfe61ec49849d4c9ad772afd3c32024-02-08T05:07:47ZengElsevierEnergy Strategy Reviews2211-467X2024-01-0151101296Dispersed settlement patterns can hinder the net-zero transition: Evidence from IrelandAnkita Gaur0Jason McGuire1Vera O’Riordan2John Curtis3Hannah Daly4MaREI, The SFI Centre for Climate, Energy and the Marine, Environmental Research Institute, University College Cork, Co. Cork, T23 XE10, Ireland; School of Engineering and Architecture, University College Cork, Co. Cork, Ireland; Corresponding author at: Environmental Research Institute, Lee Rd, Cork, T23 XE10, Ireland.MaREI, The SFI Centre for Climate, Energy and the Marine, Environmental Research Institute, University College Cork, Co. Cork, T23 XE10, Ireland; School of Engineering and Architecture, University College Cork, Co. Cork, IrelandMaREI, The SFI Centre for Climate, Energy and the Marine, Environmental Research Institute, University College Cork, Co. Cork, T23 XE10, Ireland; School of Engineering and Architecture, University College Cork, Co. Cork, IrelandEconomic and Social Research Institute, Sir John Rogerson’s Quay, Dublin, D02 K138, Ireland; Trinity College Dublin, Ireland; MaREI, The SFI Centre for Climate, Energy and the Marine, Environmental Research Institute, University College Cork, Co. Cork, T23 XE10, IrelandMaREI, The SFI Centre for Climate, Energy and the Marine, Environmental Research Institute, University College Cork, Co. Cork, T23 XE10, Ireland; School of Engineering and Architecture, University College Cork, Co. Cork, IrelandLimiting the growth of final energy demand helps meet the steep greenhouse gas (GHG) reduction trajectories required to address climate change, and can also bring wider sustainability benefits. Integrated Assessment Modelling (IAM) and energy systems modelling analyses are increasingly including low energy demand (LED) measures in GHG mitigation scenarios, but their granularity and empirical basis is typically low, limiting actionable insights. Here, we contribute to addressing this gap by examining the role of spatial settlement patterns as a driver of energy service demand, particularly in the transport and residential sectors. We focus on Ireland, which has enacted ambitious decarbonisation commitments in law, that are challenging to deliver partially due to a large proportion of the population living in rural one-off housing. We perform exploratory data analysis to estimate the mathematical relationship between various energy service demands and the dispersal of population, and calculate the energy service demand level and CO2 emissions per capita at various population densities. We also review the indirect impact spatial settlement patterns have on climate mitigation, via the viability of enabling low-carbon infrastructure. We find that higher density settlement patterns are associated with lower energy service demands and greater potential for infrastructure to enable the low carbon transition. We also find that residential and transport GHG emissions are, respectively, 62% and 52% lower for populations living in the highest density regions than in the lowest. Finally, we discuss a path forward for incorporating this empirical analysis into future mitigation scenarios.http://www.sciencedirect.com/science/article/pii/S2211467X24000038Settlement patternsEnergy demandInfrastructure lock-inMitigation strategiesEnergy systems modellingClimate change
spellingShingle Ankita Gaur
Jason McGuire
Vera O’Riordan
John Curtis
Hannah Daly
Dispersed settlement patterns can hinder the net-zero transition: Evidence from Ireland
Energy Strategy Reviews
Settlement patterns
Energy demand
Infrastructure lock-in
Mitigation strategies
Energy systems modelling
Climate change
title Dispersed settlement patterns can hinder the net-zero transition: Evidence from Ireland
title_full Dispersed settlement patterns can hinder the net-zero transition: Evidence from Ireland
title_fullStr Dispersed settlement patterns can hinder the net-zero transition: Evidence from Ireland
title_full_unstemmed Dispersed settlement patterns can hinder the net-zero transition: Evidence from Ireland
title_short Dispersed settlement patterns can hinder the net-zero transition: Evidence from Ireland
title_sort dispersed settlement patterns can hinder the net zero transition evidence from ireland
topic Settlement patterns
Energy demand
Infrastructure lock-in
Mitigation strategies
Energy systems modelling
Climate change
url http://www.sciencedirect.com/science/article/pii/S2211467X24000038
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AT johncurtis dispersedsettlementpatternscanhinderthenetzerotransitionevidencefromireland
AT hannahdaly dispersedsettlementpatternscanhinderthenetzerotransitionevidencefromireland