This report presents the results of a case study undertaken into the technical challenges posed by the growing photovoltaic (PV) penetration in the Carnarvon electricity supply network. This case study is the second in a series of case studies aimed to give Australian and international audiences insights into some of the key technical challenges and management options to facilitate high PV penetrations in Australian electricity networks. These case studies are being undertaken as a part of the broader Australian research project entitled “Support for Australian participation in an international RD&D collaboration on Photovoltaics – IEA PVPS Task 14: High Penetration of Photovoltaic systems in electricity grids”. It is hoped that this research project will ultimately establish methods to facilitate higher PV penetrations in Australia and internationally.