Geoff received his PhD in Physics (1991) for research in radioastronomy at the University of Tasmania. He then joined the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and until 2002 worked on research and commercial projects in radio antenna engineering. Following a period working on distributed systems with embedded intelligence, Geoff began to apply these ideas to distributed energy. As a Principal Research Scientist with CSIRO, his research and consulting interests evolved to include demand management, integrating renewable generation, distribution network evolution, transmission planning, and energy storage technology and applications. In 2013 Geoff left CSIRO to develop renewable energy partnerships in China, Australia, and South-East Asia, and to join Reposit Power to help commercialise residential energy storage in the Australian electricity market and elsewhere.