The technology group Wärtsilä, with Knutsen OAS Shipping, Repsol, and Sustainable Energy Catapult Centre, will commence the world’s first long term, full-scale, testing of ammonia as a fuel in a marine four-stroke combustion engine. The testing is made possible by a 20 MNOK grant from the Norwegian Research Council through the DEMO 2000 program, a statement said. “This is a…