NZ Windfarms Limited NZ Windfarms Limited is a New Zealand-based specialist owner and operator of wind farms, generating and selling renewable electricity to the national grid primarily through its Te Rere Hau wind farm located on North Range Road in the Tararua Ranges near Palmerston North; the facility features 91 Windflow WF500 turbines, each 500 kW with 30-meter hub heights and 33-meter rotor diameters, delivering a nameplate capacity of 45.5 MW and annual production of approximately 117 GWh sufficient to power around 16,000 households; operations are supported by wholly-owned subsidiary TRH Services Ltd for maintenance, with electricity fed into the grid via connection to the adjacent Tararua wind farm; founded in 2002 and headquartered at 376 North Range Road, Palmerston North, the company focuses exclusively on the New Zealand market within the renewable energy sector. In a major strategic development, Meridian Energy Limited acquired 100% ownership of NZ Windfarms Limited in July 2025 for NZ$91 million following High Court approval of the scheme of arrangement and shareholder consent in June 2025, after previously holding a 19.99% stake and forming a 50-50 joint venture in 2023 to repower Te Rere Hau with up to 39 modern three-bladed turbines targeting 170 MW capacity and sevenfold energy output increase to over 530 GWh annually, plus potential Aokautere Extension adding nine turbines for up to 740 GWh total; this transaction enables enhanced financing and execution of the repower while securing Meridian's off-take of all generated power, leading to NZX delisting upon implementation on 30 July 2025.