Engineers Bill Currie and Wayne O'Hara detailed the advances they had made to the single-bladed machine, which they have been working on full-time for the past 16 months, with help from their business partner, Richard Butler.
A selection of the many engineers and designers who had helped create the wind turbine was also present.
Many had suggestions on how the company could improve the prototype, which is designed to power single households.
The support from Dunedin for the project was pleasing, Mr Currie said.
Financial backing for further development was required and Mr Currie said he had received an indication of interest from Southland-owned equity and debt investment company Invest South.