Abstract:
A sequence of three-dimensional numerical models, of increasing complexity, of the Ohaaki geothermal system have been developed at the University of Auckland in collaboration with Contact Energy Ltd (CEL) and its predecessors. A report on one of the most recent versions of these models (called here Model 2012) formed part of the application for the re-consenting of the Ohaaki Geothermal Power Project, approved at an RMA hearing in 2013. The current paper summarises the report on the 2012 model and discusses improvements to the model that have been made since 2012.