This paper presented an approach for automatic generation of reports from domain ontologies encoded in Semantic Web standards like OWL. The paper identifies the challenges that need to be addressed when generating text from RDF and OWL and demonstrates how the ontology is used during the different stages of the generation process. The main contribution is in showing how NLG tools that take Semantic Web ontologies as their input can be designed to minimises the portability effort, while offering better output than template-based ontology verbalisers.