Objectives

The main objective of RESTOR is to develop a multi-criteria renewable energy storage planning model to support policymakers, electricity grid operators, and energy stakeholders in designing storage strategies adapted to the specific characteristics of island territories.

The main scientific and technical objectives are:

• Develop a multi-criteria decision-support model: design an MCDA tool integrating technical, economic, environmental, and social criteria to evaluate and compare energy storage solutions.
• Model island energy systems: analyse electricity grid operation and develop prospective energy scenarios for 2030-2050, considering renewable energy resources, existing infrastructure, and territorial constraints.
• Optimise energy storage strategies: investigate solutions addressing renewable energy intermittency, particularly during prolonged periods of low solar or wind generation (Dunkelflaute), using multi-year economic optimisation approaches.
• Apply and validate the methodologies across island territories: implement the model in five pilot case studies with contrasting energy, climatic, and socio-economic characteristics.
• Assess the transferability of results: compare the outcomes of the case studies to identify the main factors influencing energy storage choices and evaluate the model’s applicability to other island territories.

For Reunion Island, ENERGY-Lab focuses on electricity system modelling, meteorological and energy data analysis, prospective scenario assessment, and the identification of energy storage solutions supporting increased renewable energy integration.