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Communication Dans Un Congrès Année : 2023

Multi-scope social life cycle impact assessment: application to offshore wind energy sector in France

Résumé

To ensure the energy transition, the European Commission aims to install by 2050, a total capacity of 300 GW of offshore wind. In response, the French government , announced a cumulative installed capacity around 5 GW by 2028 (MTE, 2023). Several challenges still need to be tackled to achieve such ambitious goals, including those related to the complex socio-territorial integration. In particular, offshore wind projects can raise some social concerns from local communities, such as local wealth distribution, landscape impacts or sharing of maritime spaces. These issues may depend on the technological design choice (e.g., number and capacity of turbines, bottom-fixed or floating foundations), distance from the coast as well as the local socio-economic and cultural stakes.In addition to local impacts, considering potential social impactsgenerated by industrial processes upstream of the system is key to enable its social sustainability. However, few S-LCA studies in the literature present a framework including both local and global scopes, which may prevent fully informed decisions. In the present study, Social Life Cycle Assessment (S-LCA) is performed to analyse social impacts throughout an offshore wind farm life cycle.S-LCA framework proposed in existing guidelines (UNEP, 2020) comprises 4 phases, analogous to those of ISO 14040 standards for LCA. This work focuses on two phases of S-LCA, namely, social life cycle inventory and social life cycle impact assessment by providing a coherent framework for data collection and calculation of social indicators for the most relevant impact categories. Such framework aims to distinguish impacts indicators according to their spatial scope (i.e., local and global) For covering the global one (i.e., social risks upstream), inventory data of components and process activities are collected. For national and local scopes, specific indicators are defined? from the literature. The defined framework is made iterative and integrates stakeholders’ perceptions in both S-LCA phases. Social indicators are calculated by using the working time activity variable and social weighting impact method to convert raw data to medium risk hours through a set of impact factors. Finally, to establish a coherent framework, and present the results synthetically, the indicators are harmonized on the same scale. The output consists in a list of indicators aggregating information by impact and stakeholder category, and by spatial scope. This output may help consider the concerns of different stakeholders, facilitate monitoring and adjust practices, regarding both the international and local social consequences of offshore wind farm installations.
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Dates et versions

hal-04336231 , version 1 (11-12-2023)

Identifiants

  • HAL Id : hal-04336231 , version 1

Citer

Jérémie Lehmann, Paula Pérez-López, Rhoda Fofack-Garcia, Ghada Bouillass. Multi-scope social life cycle impact assessment: application to offshore wind energy sector in France. The 11th International Conference on Life Cycle Management, Sep 2023, Lille, France. ⟨hal-04336231⟩
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