This study presented three tools that have been developed within the Horizon 2020 PROSPECT+ aiming to support local and regional authorities in their decision-making process. The presentation highlighted that through the development of the Recommendation – Decision Matrix tool, the Project Finance Readiness tool and the SYNERGISE+ tool, the PROSPECT+ team seeks to empower local governments and decision-makers to plan, finance and implement their sustainable and energy climate plans and actions in the most effective way.