Visit to Plant

Wind Farm Operates in Harmony With Park

Capacity increased by 2MW without expanding substation

2018/07/12 15:55
Kenji Kaneko, Nikkei BP Intelligence Group, CleanTech Labo
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Minamikyushu City, in the southern Satsuma Peninsula of Kagoshima Prefecture, is "Japan's top tea-production region." The city boasts the highest production and the largest growing area of tea among all cities, towns and villages in Japan. Minamikyushu City was created when Eicho, Chirancho and Kawanabecho merged in December 2007. Although tea production is thriving in all these three towns, the city's tea brand has been standardized to "Chinrancha," which is the most well-known.

The "Yume/Kaze-no-sato Agri-land Ei" on a hill by Eicho has become a park where both adults and children can enjoy such facilities as a camp site, hot spa and small animal park. Given its great wind conditions, the former Eicho constructed a wind farm facility with an output of about 500kW in March 2000, which became the park's symbol. However, the facility was demolished in 2014 as it had grown old.

Three financers decrease to one

What now gives form to "Yume/Kaze-no-sato (village of dream/wind)" in the park's name is the "Ei Wind Farm" with a total output of 16MW. Eight large wind turbines with an output of 2MW each were scattered on the hills around the park and are rotating over the tea fields (Fig. 1).

Fig. 1: Panoramic view of the Ei Wind Farm (source: Yonden Engineering)

Yonden Engineering Co Inc (Takamatsu City) constructed the Ei Wind Farm in July 2010 and provides operation & maintenance (O&M) services. The power producer is its subsidiary Ei Wind Farm (Takamatsu City). In March 2015, the wind farm's total capacity was boosted to 16MW from 14MW by adding one more unit to the seven wind turbines with an output of 2MW each that had been set up when it was completed.

Yonden Engineering has abundant experience in designing and constructing wind power generation facilities. Designing and constructing Japan's first find farm (20 units, 20MW) that started operation in Tomamaecho, Hokkaido, in 1999, the company is a sort of pioneer who established the grid connection technology for the wind power generation business in Japan.

In the area of wind farms and mega- (large-scale) solar power plants, Yonden Engineering has been financing power generation business as well as engineering, procurement and construction (EPC) services.

In fact, the Ei Wind Farm was initially planned to be a joint project financed by three firms including Yonden Engineering. However, following the other two firms' withdrawal from the project, Yonden Engineering became the sole financer of the power generation business.