| Type | Public |
|---|---|
| Headquarters | Christchurch, New Zealand |
| Key people | Geoff Henderson |
| Products | wind turbines |
| Website | http://www.windflow.co.nz/ |
Windflow Technology is a company based in Christchurch, New Zealand known for its unique wind turbine gearbox design.
It was listed on the New Zealand Stock Exchange on 2 December 2003.[1] In October 2008, Mighty River Power purchased a 19.95% share of Windflow Technology.[2][3]
The operation of a Windflow Technology turbine installed at Gebbies Pass near Christchurch encountered opposition from local residents who raised concerns about noise. The neighbouring valley was very sheltered, and therefore had very little background sound. Because of this, Windflow offered to comply with low sound levels of 30 dBA, 10 dBA lower than the District Council's usual requirement of 40 dBA. However, sound levels were at 35 dBA, so Windflow modified the gearbox, which reduced the turbine's sound. Sound levels were again measured and this time be within the requirement of its resource consent.[4] [5]
Windflow Technology set up New Zealand Windfarms to own and run the Te Rere Hau Wind Farm near Palmerston North. Initially this was wholly owned but now has been completely sold off.[6][7] Windflow Technology supplied the wind turbines for this wind farm,[8] and are also contracted to supply turbines for Mighty River Power's proposed Long Gully Wind Farm.
The company achieved ISO 9001:2000 certification for the design and production of its Windflow 500 wind turbine in 2008.[9] In September 2010 the Windflow 500 gained Class 1A of the International Electrotechnical Commission (IEC) design standard IEC 61400-1 (edition 3) through Lloyd's Register.[10]
In September 2011, Windflow Technology signed a contract to install a Windflow 500 turbine on the island of Shetland [11]
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