This sub-workshop examines the critical interface between renewable electricity generation and green hydrogen production, a cornerstone for decarbonising energy-intensive sectors. As electrolysers increasingly operate under variable and intermittent power conditions, advanced system design, control strategies, and grid integration concepts are required to maintain efficiency, durability, and economic viability.

The session explores both direct coupling of electrolysers with wind and solar power plants and hybrid grid-connected configurations, with a focus on maximising utilisation while ensuring system reliability. Hydrogen systems can provide valuable flexibility services, helping to stabilise electricity grids with high shares of variable renewables.

Academic presentations will cover modelling approaches, optimisation techniques, and degradation effects on electrolyser performance, providing the scientific foundation for robust system design. Industry speakers will share practical insights and lessons learned from large-scale renewable hydrogen projects, including integration strategies, operational challenges, and real-world performance metrics.

The workshop is designed to provide actionable recommendations for engineers, project developers, policymakers, and investors involved in renewable hydrogen deployment.

Extended Key Takeaways & Outputs

• Technical guidelines for coupling renewable generation with electrolysers
• Defined operational envelopes for flexible electrolyser operation under variable power
• Design principles for establishing renewable hydrogen hubs
• Recommendations for grid-integration, permitting, and regulatory alignment
• Identification of research and development gaps for long-term optimisation