Tidal energy

Japan develops tidal energy as part of US$501 million project


Japan’s New Energy and Industrial Technology Development Organization (NEDO) has selected IHI Corp. and Toshiba Corp. to research and develop an underwater floating-type ocean current tidal energy turbine system as part of a US$501 million effort for sustainable, renewable energy.

The specific location for the system and its generating capacity are not immediately known.

The system includes power generation devices that each have two counter-rotating turbines. Each unit is anchored to the sea floor and floats like a kite carried and driven by the ocean current, according to Toshiba.

IHI is a heavy equipment manufacturer that produces a multitude of products including marine propellers. Toshiba is a widely-recognized electronics manufacturer.

“IHI is the lead company in the project and will manufacture the turbine and floating body,” said Toshiba and IHI in a joint press release. “Toshiba will supply electric devices, such as the generator and transformer.”

The project is the latest step in a NEDO-funded project begun in 2011 that involves Toshiba and IHI, with the University of Tokyo and Mitsui Global Strategic Studies Institute, in ocean energy research. An exact completion date for deployment of the system has not been announced, but the project is expected to continue until 2017.

The research work is expected to prove the viability of ocean energy power generation and to create the framework for an industry, and also to contribute to improved energy security for Japan, according to Toshiba.

Ocean currents, such as the Kuroshio Current, are a natural energy resource with little fluctuation in flow regardless of time or season. In Japan, an island nation, success in converting the massive power of the ocean current will create a large-scale, stable power source.

Japan’s Ministry of Economy, Trade and Industry determines policy for and funds NEDO. NEDO is responsible for promoting energy research and development, environmental and industrial technologies and acquiring emission reduction credits through the Kyoto Protocol mechanisms.

Source: http://www.hydroworld.com/articles/2014/12/japan-develops-tidal-energy-as-part-of-us-501-million-project.html


Largest Tidal Stream Turbine Power Plant In The World To Begin Construction

January 2nd, 2015 by
Originally published on RenewEconomy.
By Sophie Vorrath

Construction of the world’s largest tidal stream turbine power plant looks set to begin next month in Scotland, after the project’s majority owners – the Australian-founded and managed company, Atlantis Resources – got the go-ahead to start drawing on government grant money.

The-coast-of-Caithness-Sc-012-300x180Atlantis said last week that its flagship MeyGen project had met all the conditions required to start drawing down finance through the UK’s Renewable Energy Investment Fund.

The huge tidal energy plant will comprise 269 turbines, installed on the seabed at Ness of Quoys in Caithness, north-east Scotland. It will have the potential to power nearly 175,000 homes and a total capacity of almost 400MW once completed.

In August, Atlantis raised around $US83 million towards the tidal project’s construction, to be used to finance the installation of four 1.5MW turbines in Scotland’s Pentland Firth – a small portion of the 86MW planned for the project’s demonstration phase.

In an announcement to investors on Friday, the LSE-listed company said onshore construction at the project site was expected to commence in January 2015, with ABB – the project’s major design and construction contractors – due to start building infrastructure for connection to the electricity transmission grid for power export.

Atlantis expects the first supply of tidal power to be delivered to the national grid in 2016, and to have about 60 turbines installed and delivering power by 2020.

Read more here: http://cleantechnica.com/2015/01/02/largest-tidal-energy-plant-world-begin-construction/