Everllence HydroMonia Project: Hydrogen and Ammonia Engines for Carbon-Free Backup Power

German engineering firm Everllence has launched the HydroMonia R&D project to adapt traditional engines for burning green hydrogen and clean ammonia. The goal is to produce carbon-free backup power that can help balance the grid as renewable energy sources grow. The project targets lifecycle CO2 reductions compared to conventional gas and diesel generators, addressing a key gap in on-demand low-carbon power. HydroMonia focuses on retrofitting existing engine designs rather than building from scratch, which could lower deployment costs and speed up adoption. If successful, the technology would provide a dispatchable, zero-carbon power source for grid stability. The project is still in early R&D, so timelines and cost targets are not yet public. This is one to watch for anyone tracking hydrogen and ammonia as grid-scale storage and backup fuels.