AEGIR aims at developing an ammonia-fuelled ship propulsion system that offers high efficiency in combination with a low total system volume and weight, all whilst avoiding emissions of NOx and the reducing CO2 emissions.

Ammonia is a promising fuel alternative that has the potential to be zero-emission if produced using renewable energy. Ammonia is easier to liquefy than hydrogen and contains 70% more energy per volume compared to liquid hydrogen, making it an attractive fuel especially for large, ocean-going ships. Furthermore, as ammonia is widely used as a fertilizer, an infrastructure for safe transport and handling is already in place worldwide. The AEGIR project aims to demonstrate a reduction of greenhouse gas emissions by 90% compared to current state in a well-to-propeller analysis and identify potential scale up issues for a 20 MW maritime system in a concept study.