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Hawi Wind Farm
Hawi Wind Farm is a wind farm located on Upolu Point, the northern tip of Hawaii's largest island, Hawai'i. Commissioned in 2006, it comprises sixteen 660 kW wind turbines manufactured by Vestas, specifically the Vestas V47 turbine. At maximum capacity the farm is able to produce 10.56 MW.〔(【引用サイトリンク】title=Hawaii Electric Existing Wind Farms )〕
On 14 May 2004, Hawaii Electric Light Company (HELCO) bought the farm from enXco or EDF Renewable Energy. Since then the farm has been operated by Hawi Renewable Development LLC, but continues to provide power to HELCO. The Hawi wind farm was the first utility scaled wind farm built in Hawaii, quickly followed by the Kaheawa Wind Farm built later in 2006.
==Advancements and shortcomings==
In 2011, the Hawi Wind Farm added a 1 megawatt back-up battery system to their wind farm. The Hawaii Natural Energy Institute approved this 1.8 million dollar project which allowed Altair Nanotechnologies to make this installation. This addition has proved advantageous as it allows the wind farm to store up to one megawatt in energy that can be fed into the grid if the wind farm were to shut down due to safety reasons.
However, as recently as 2013 the farm has also had its setbacks. On 7 January 2013, the farm was forced to shut down due to high sustained winds and gusts up to 50 miles-per-hour. This shut down directly impacted over 6,000 customers. Similarly, a week later the farm went off line again, this time affecting about 4,500 customers.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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