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Hama Wing (Yokohama Wind Power Plant) was completed at Mizuho Wharf in Yokohama Port, five years after the start of the concept of windmill construction. As an unusual "urban windmill" in Japan, you can see it from the Minatomirai district, which is a place for many citizens to relax. At that time, there was still no domestic 2 megawatt-class windmills, so the current Bestas in Denmark was selected, the tower was in Korea, the blade was manufactured in China, and Nacel was manufactured in Denmark, and then crossed the sea. It was transported to Yokohama Port in Japan.
Last update date April 12, 2024
Construction of Wind Power Plant
1.Construction site
The construction site of the wind power plant is Mizuho Wharf in Kanagawa-ku, Yokohama. This place is located just in the center of the inner harbor of Yokohama Port and is very visible from the Minatomirai district, which attracts about 80 million people annually.
2.Construction started (October 2006)
The foundation work at the site has begun. The photo shows a pile driving.
3.Foundation work (November 2006)
The amount of concrete used for this foundation is about 530 cubic meters. It was transported and launched by a total of 106 ready-mixed concrete vehicles (concrete mixer trucks).
4.Tower unloading (December 2006)
The tower was transported by boat from Korea, drained (unloaded) at Suzushige Wharf, and transported to the construction site by land transport.
5.Tower assembly (Jan. 10, 2007)
The tower was divided into three parts, and after pasting the designed sticker was attached and assembled in order from the bottom. The height of the tower is 18 meters from the bottom (1st stage), 29 meters in middle (second stage), 29 meters in the top (3rd stage), and weighs 164 tons in total.
6.Nacel mounting (January 11, 2007)
After installing the top (3rd stage) tower, 68 tons of nacells were installed. At that time, there were only two cranes used to assemble windmills were German-made 800-ton crane truck.
7.Blade assembly (January 23, 2007)
The three blades and hubs (center of the blades) are grounded (assembled on the ground), then lifted and fixed to the nacells. This situation was also made public to the press.
8.Completed assembly (January 23, 2007)
All assemblies are completed, and work such as electrical equipment construction, test adjustment, site maintenance, etc. will continue for the start of operation.
9.Operation commenced (March 26, 2007)
The completion ceremony was held, and the operation switch of the wind power generation was pressed by the shout of the children at Kougaya Elementary School, and the windmill began to turn slowly, and the operation was officially started.
For inquiries to this page
Decarbonization and GREEN × EXPO Promotion Bureau Carbon Neutral Business Promotion Section
Phone: 045-671-4225
Phone: 045-671-4225
Fax: 045-550-3925
Email address: da-wind@city.yokohama.lg.jp
Page ID: 836-192-028
