Otago wind farm expansion becomes sixth renewable project fast-tracked

The Government has granted fast-track approval for the expansion of the Māhinerangi Wind Farm in Otago, making it the sixth renewable energy project approved under the Fast-track Approvals regime.

The project, known as Puke Kapo Hau, will expand the existing wind farm, which has operated since 2011, with approximately 44 additional wind turbines, a new 110kV transmission line, a substation and a 60MW battery energy storage system.

Transport and Infrastructure Minister Chris Bishop says the approval is the 26th project to receive consent through the fast-track process.

“The approved Stage 2 development, known as Puke Kapo Hau, will expand the existing wind farm, which has been operating since 2011,” Bishop says.

The project was lodged by Tararua Wind Power Limited in November 2025, with approval granted four and a half months after the independent expert panel began considering the application.

Once complete, the expanded wind farm is expected to have an installed generation capacity of up to 190MW and produce about 550GWh of electricity annually — enough to power the equivalent of around 68,000 homes.

Regional Development Minister Shane Jones says the development represents a significant investment in Otago.

“The project represents a significant investment in Otago and will contribute to the region’s economic growth while supporting New Zealand’s transition to a more secure and sustainable energy future,” Jones says.

“Fast-tracking major infrastructure projects helps unlock investment, supports regional development, and creates opportunities for local communities while delivering the infrastructure New Zealand needs.”

Energy Minister Simeon Brown says increasing renewable generation is central to the Government’s energy strategy.

“We are fixing the basics and building the future by taking key actions to increase energy supply and put downward pressure on prices,” Brown says.

“Fast-tracking consenting rules to encourage energy investment is one of those actions. Renewable energy projects like this are critical to strengthening New Zealand’s energy security and supporting a more reliable national electricity system.”