Operational Assets

Mahinerangi Wind Farm is located west of Dunedin near Lake Mahinerangi, in the South Island of New Zealand. The wind farm development was split into 2 stages in order to utilise the existing 33kV transmission line to the Deep Stream hydro asset. This was completed in 2011 and consists of twelve Vestas V90 turbines, each producing 3MW, for a total capacity of 36 MW. Estimated annual production is 101 GWh.

Tararua Wind Farm

The Tararua Wind Farm stands on 700 hectares of private farmland in the Tararua Ranges, in the lower North Island of New Zealand. Three of the V90 turbines at this site were the first Vestas turbines in the world to reach production of one hundred million kilowatt hours, further cementing the site's reputation as one of the best in the world. Commissioned in 2007, the maximum capacity is 93 MW and the annual output is 318 GWh.

Turitea Wind Farm

New Zealand’s largest wind farm is in the Tararua Ranges near Palmerston North. The site extends southwards from the Pahiatua-Aokautere Road, on both sides of the Turitea Reserve. With 33 Vestas V112-3.6 MW turbines in the northern zone and 27 Vestas V112-3.8 MW turbines in the southern zone. A 12km long 220kV transmission line connects the wind farm to the national grid at the Linton substation. 

Turitea was fully commissioned in May 2023 and has a maximum capacity of 222MW and an annual output of 840GWh.

Waipipi Wind Farm

The Waipipi Wind Farm project is located approximately 6km south-east of Patea and 8km south-west of Waverley, in the South Taranaki, New Zealand. The wind farm consists of 31 wind turbines connected to the Transpower 110kV network via 11 kilometres of 110kV transmission line to the Waverley Substation. The installed capacity is 133 MW and annual output is 455 GWh.


Kaiwera Downs I Windfarm is located 15km southeast of Gore in the South Island. With 10x4.3MW Vestas turbines connected to an 18km long 33kV line back to the Gore substation. It was commissioned in November 2023 and has a capacity of 43MW and an annual output of 147Gwh.



The proposed Kaiwera Downs II Wind Farm is 15km southeast of Gore in the South Island. The recently commissioned Kaiwera Downs I and proposed Kaiwera Downs II will generate approximately 230MW of renewable energy.

Kaiwaikawe wind farm
The proposed Kaiwaikawe Wind Farm site (previously named Ōmāmari Wind Farm) is approximately 10km north-west of Dargaville. The wind farm will generate approximately 73MW of renewable energy.
Mahinerangi Stage 2
The Mahinerangi Wind Farm Stage 2 development is located west of Dunedin near Lake Mahinerangi. Consent was granted for Mahinerangi Wind Farm in 2008. The project was split into two stages with Stage 1 built in 2011. Stage 2 allows for up to 100 wind turbines and will be around 164MW.
Puketoi wind farm
The Puketoi Wind Farm development is on the Puketoi Range, 40km south of Dannevirke and 39km east of the Turitea Wind Farm. The Turitea transmission line was designed with spare capacity to connect Puketoi. The development has 53 turbines, with a capacity of around 228MW, generating approximately 1,040GWh per year. Mercury was recently granted a resource consent extension to 2031 to start construction. Mercury is applying lessons learned during the construction of Turitea Wind Farm, as it plans development of the Puketoi Wind Farm.


Take a look behind the sleek white surface of a wind turbine and discover the technology it uses to create electricity from the wind’s natural energy.
Video Length: 1m 50s