Rolls-Royce is leading the Phoenix project in Germany to develop a hydrogen combustion engine for a combined heat and power system. Funded by the German government, the project aims to create a carbon-neutral stationary energy plant using green hydrogen. Dr Jörg Stratmann, CEO of Rolls-Royce Power Systems, emphasized the importance of combustion engines in ensuring a reliable energy supply during the transition to sustainable energy sources. The project involves partners like the Technical University of Munich and Robert Bosch AG, working on advancements in injection systems, piston groups, ignition systems, and lubricants. Rolls-Royce's investment in next-generation hydrogen engines aims to make combustion engines more climate-friendly with sustainable fuels. The German government's strategy includes expanding renewable energies through gas-fired power plants to balance the variability of wind and solar power. The Phoenix project aligns with this strategy by focusing on hydrogen cogeneration plants to reduce CO2 emissions. As green hydrogen availability increases, the technology developed in the Phoenix project is expected to be ready for widespread use.