Tilt chief executive Deion Campbell is delighted with the expansion in New Zealand, made without the need for new investment from shareholders.
The Waipipi Wind Farm will have 31 turbines, each a 4.3MW Siemens Gamesa model with a rotor diameter of 130m - said to be the largest ever installed in New Zealand.
It will take up to 20 months for 150 people to build. Once operational it will generate 455GWh of electricity a year, enough to power about 70,000 houses. Genesis Energy has committed to buying all the electricity for 20 years.
Construction will be managed by Tilt, with the turbines supplied and installed by Siemens Gamesa Renewable Energy Pty Ltd. ElectroNet Services will handle the plant's electrical balance and Higgins Contractors will do the civil construction.
Tilt has other wind farms in New Zealand, and wind and solar generation projects in Australia.