FLOW boosts and demonstrates multifaceted EV smart charging and V2X integration into energy systems thanks to a range of comprehensive solutions providing answers to the needs of all actors involved. These solutions include highly replicable user-centric products, concepts, configurations and mechanisms to optimise operation. Cross-sector harmonisation and standardisation is delivered to facilitate activities of stakeholders and EV users. Advanced interoperable solutions enhance planning, operation and assessment of EV charging for seamless integration into the energy system and identification of the most appropriate scenario based on a multi-criteria model, leveraging appropriate business models and tailored services. FLOW also delivers multi-actor orchestration to ensure data exchange and synchronisation across actors for VGI and EV flexibility services. These solutions are deployed in 5 demonstrations (including 2 testbeds and 3 large-scale demos) in CZ, IE, IT, DK, and ES covering a wide range of applications (e.g., V1G/V2B/V2H/V2G, public/private/semi-public, urban/rural/touristic, car/small- & medium commercial) to validate and quantify the benefits associated with enabling and valorising EV flexibility, alleviating grid challenges, and fostering mobility and energy decarbonization. Expected impacts include GHG emission reduction of 0.6MtCO2/y, grid reinforcement saving up to 1.3B€/country, increase local RES by 14% and avoid RES curtailment by 4TWh. The consortium includes 26 partners from 9 European countries covering the entire value chain, including OEM, technology providers, CPOs, aggregators, DSOs, TSO, ICT developers, RTOs experts in users, mobility, harmonisation, optimisation tools, energy integration and leveraging the networks of umbrella associations from the electromobility and the DSOs. These ensure replicability and scalability to foster the EV penetration trends, thanks also to comprehensive communication, dissemination and exploitation actions