The 4th Budapest Hydrogen Summit, set for 15 April 2025 in Budapest, Hungary, will bring together leaders and stakeholders from 25+ countries to discuss hydrogen's role in Europe's energy transition. The event will feature Attila Steiner and Jorgo Chatzimarkakis, among others, sharing insights on hydrogen's future and industry growth. Projects like 20HyGrid and EUH2STARS will be presented, focusing on hydrogen deployment and storage. Discussions will cover green hydrogen production, regional cooperation in creating hydrogen hubs, and successful strategies for scaling up hydrogen adoption. The summit aims to empower the hydrogen market and promote collaboration in advancing green technology.