The document discusses using the JRC-EU-TIMES energy system optimization model to analyze the impacts of technology costs and assumptions on the deployment of low carbon technologies in Europe. The model can explore scenarios assessing different technology sensitivities to provide insights for targeting research and innovation efforts. Examples analyzed include the impacts of solar PV costs and the role of geothermal with and without carbon capture and storage. The model results can indicate potentially cost-effective research and innovation investment levels to achieve breakthrough technology performance levels.