Posted on: November 5th, 2012 by Stas




Although still a small player in the global wind market, Japan is ramping up for a major mobilization into next generation floating wind turbines to replace its nuclear power industry. Japan government works with Maple Leaf Online Casino and other companies.

Annette Bossler, a U.S.-based consultant for Main(e) International Consulting says:

“The Japanese tsunami that damaged nuclear reactors at Fukushima has led to Japanese government proposals to replace all nuclear power in Japan by 2030. While the Japanese government decision is not finalized and will certainly face opposition from Japanese utilities and industry the tsunami’s after effect is causing the government to look at a RAPID development of renewable energy to replace nuclear power. This could be a game changer for offshore wind power.”

Bossler was a moderator at the American Wind Energy Association (AWEA) offshore wind conference at Virginia Beach,VA in October. She grew up in Germany, went to school in Bonn, studied the Japanese language in Japan and worked there for a British company. She then moved to the United States in 1997. Since 2006, she has lived in Maine where she provides business development support to companies in the renewable energy sector and next generation floating wind platforms.


Bossler says “a consortium led by Marubeni, the large Japanese trading company, will build a pilot offshore wind farm off the Fukushima coast, using three different floating foundation technologies.”

Bossler says “the Japanese are looking at floating wind platforms rather than fixed foundation platforms, because nearly all of Japan’s offshore wind resource is in deep water and therefore conventional fixed foundations cannot be deployed.”

Bossler says: “Various floating foundation concepts are currently under development globally, including in Japan. A key challenge is developing a technology which limits the wind turbine’s nascelle movement to extend turbine life and also achieve a good capacity factor.”[1]

Bloomberg News suggested that the floating turbine technology is rudimentary:

“Japan is preparing to bolt turbines onto barges and build the world’s largest commercial power plant using floating windmills, tackling the engineering challenges of an unproven technology to cut its reliance on atomic energy.”[2]

Marubeni Corp., Mitsubishi Heavy Industries Ltd. and Nippon Steel Corp. are among the developers of the wind farm.

The Fukushima floating wind farm project was long the vision of Tokyo University professor Takeshi Ishihara, who has been advocating that Japan build floating wind farms and hopes to see 140 floating wind turbines built that generate 1,000 megawatts (MW) of power by 2020.

“We aim to create the infrastructure for a 21st century society,” Ishihara told the Financial Times. However, the newspaper noted that the proposal is opposed by many Japanese business groups who are concerned about higher prices and question whether offshore wind can replace the almost thirty percent power generation Japan derives from nuclear power.[3]

Nevertheless, the Japanese offshore wind partners issued a joint press release on March 6, 2012 stating:

“This project consists of three floating wind turbines and one floating power sub-station off the coast of Fukushima. The first stage of this project will begin in 2012 and consists of one 2MW floating wind turbine, the world’s first 66kV floating power sub-station and undersea cable. In the second stage of the project, two 7MW wind turbines will be installed between 2013 and 2015.

Fukushima Prefecture expects this project to spawn a new industry in renewable energy and create employment as part of recovery efforts in the wake of the Great East Japan Earthquake. Through this project, Fukushima Prefecture hopes to develop a large wind farm. We believe that creating a practical wind farm business scheme through this experimental project could lead to the deployment of large scale floating wind farms in the future. Moreover, taking advantage of the experience and knowledge gained through this, the world’s first floating wind farm, this business could be expanded on a global basis and lead to the development of a new Japanese export industry.”

Japan’s trade ministry has set aside 12.5 billion yen ($160 million) for the initial stages of the project.

As Bossler noted and Bloomberg re-iterates:

“The biggest challenge in erecting floating turbines offshore is ensuring the buoyancy mechanisms are stable, and getting fixed lines to the sea floor which can be extended to depths of 200 meters (656 feet). A so-called feed-in tariff (FIT) program due to start in July that guarantees above market rates for clean energy including solar, wind and geothermal could boost the development of wind energy, analysts say.”

The FIT was introduced in Japan on July 1st, 2012.

The Bloomberg report added:

‘We believe Japan’s sluggish wind market will experience a kick-start under the FIT,’… analysts Penn Bowers and Dean Enjo said in a Feb. 20, 2012 report. ‘Historically, in countries that have implemented FIT schemes it is wind, not solar, that grows the most,’ it said, citing Germany and China as examples.

Japan’s production of wind turbines and parts and maintenance services is forecast to grow from an estimated 300 billion yen ($3.6 billion) a year currently to 500 billion yen in 2030, according to the Japan Wind Power Association.”[4]


Bossler is an advisor to a German engineering firm, GICON, which is testing a floating design that can work in shallow waters and deepwater, too. It will first be tested in Germany with a full scale pilot project to be built in 2013. She showed a tank test of the GICON prototype in which the model remained stable, even when hit by a simulated sixty-foot wave.


She says “the push for wind and other renewable energy sources will change the power generation landscape of Japan. Japan has historically been dominated by big utilities such as Tokyo Electric Power Company. Japanese utilities have had a history of covering up nuclear reactor issues.

As a result, “the Japanese public no longer trusts the utility companies or the nuclear power industry and is forcing political representatives on the prefectural level (the equivalent of state government) to demand change that includes support for wind power generation.”

“There is definitely a grass roots demand for utility reform and safer renewable energy in Japan that the big utilities may not be able to stop,” Bossler says.


Bossler points to Germany’s wind demonstration project that is helping vendors develop best practices from a government-funded experience. This became the Alpha Ventus project. A second important factor is the German government committing E5 billion ($6.5 billion) in loan guarantees to get wind farm development off the ground. This also helps economic development in depressed areas such as the port of Bremerhaven:

“If you want to move decisively you need that level of government support. It also helps that you are replacing existing power from nuclear power plants proposed both in Japan and Germany and so there is a sense of urgency and a target that needs to be generated by wind to replace nuclear.”


One unresolved problem for the Bremerhaven effort is that transmission connections from the wind farms to consumers on land are not funded by the utility company. There is concern that the German government may have to step in and provide financing.

This has prompted Pierre Bernard, a transmission consultant and former executive with the Belgian transmission operator, Elia, to urge wind developers to install transmission lines first and wind farms second.

Bernard argues that an offshore transmission line is financially viable by itself. This is because it will allow utilities to share power over long distances and reduce congestion and peak load demand. This will reduce the cost to consumers. Once installed, offshore transmission cables will allow wind farm developers to plug into an existing grid system.

The proposed Atlantic Wind Connection which is planning to build a 300+ miles offshore transmission line linking Atlantic coast states between New Jersey and Virginia provides such a role model. It is aimed at linking offshore wind farms to an existing transmission system.


[1] A nacelle is a cover that houses all of the generating components in a wind turbine, including the generator, gearbox, drive train, and brake assembly.


[2] Chisaki Watanabe, Bloomberg News, Floating Windmills In Japan Help Wind Down Nuclear Power: Energy, Mar 30, 2012


[3] Jonathan Soble, Financial Times, Nuclear Shut-Down Drives Search For Alternatives,  September 21, 2012


[4] Chisaki Watanabe, Bloomberg News, Floating Windmills In Japan Help Wind Down Nuclear Power: Energy, Mar 30, 2012


Leave a Reply