HySISI is a first-of-its-kind cross-border co-operation in the field of green hydrogen in Central and Eastern Europe, supporting the Interreg AT-HU 2021–2027 Programme’s Green and Resilient Border Region Priority.

It promotes sustainable solutions and knowledge exchange across sectors and public actors.

The project addresses climate challenges by promoting decarbonisation and strengthening energy security through local hydrogen production and storage, reducing dependence on imported fossil fuels while enhancing system resilience.

HySISI will develop a cross-border hydrogen strategy in Austria and Hungary including hard-to-abate sectors like steel, cement, chemicals and transport. These sectors are critical for regional competitiveness but require innovative solutions to meet climate targets.

By integrating hydrogen technologies, stakeholders can provide clean fuel, store excess renewable energy and reduce fossil-fuel dependence. The initiative pioneers a collaborative framework to align efforts, share knowledge and speed up regional decarbonisation.

Beyond technology, HySISI pioneers a collaborative governance and planning framework, aligning regional policies, investment priorities, and technical know-how. Through joint planning, pilot actions, and stakeholder engagement, the project accelerates the scaling-up of hydrogen solutions and contributes to a more resilient, decarbonised cross-border region.

HySISI runs for 24 months, from 1 December 2025 to 30 November 2027. With a total budget of €820,075.05, the project is co-financed by the European Union through the European Regional Development Fund (ERDF) with €576,479.28 under the Interreg VI-A Austria–Hungary 2021–2027 Programme.