Since its launch, CRETE VALLEY has made significant technical and scientific progress across multiple work packages, laying the foundation for a fully operational REV in Crete. Central to this effort has been the establishment of the REV-Lab and the CELs through a co-creation process guided by SSH frameworks. Key achievements include the development of open-source decision-support tools for energy planning, incorporating multi-energy system optimisation and user-centric design. These tools include computational modules, visual applications (augmented reality) and a REV Readiness Assessment Toolkit, which will later on be integrated into the Crete Valley Decision support tool (DST) for REV planning. The project has also advanced with the initial version of the Crete Valley Digital Twin, which integrates consumer data, forecasting models, and operational analytics. By M15, 15 novel analytics techniques had been developed, improving energy forecasting models, with further enhancement expected. On the data front, CRETE VALLEY has implemented semantic models and open APIs aligned with Energy Data Space (EDS) principles to ensure trusted, sovereign, and interoperable data sharing. Preparations for deploying IDSA-compliant connectors and smart contracts for demand response are underway. Finally, the project has begun integrating PV, wind, biogas, biomass, geothermal, and hydrogen technologies across CELs and initiated modelling for sectoral coupling with non-energy domains like tourism and agriculture. These technical milestones mark strong momentum toward the full deployment and validation of the REV concept.
