Chris Bromley gave a last minute keynote at the recent NZ Geothermal Workshop, which included his journey to supercritical geothermal. Chris has a long history in geothermal research, including conducting resource assessments, geophysical exploration, and environmental studies of geothermal fields in Indonesia, Philippines, Japan, Kenya, Iran, Chile, Australia and New Zealand.
You can view an excerpt of the slides from his presentation here.