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The world’s first transocean shipment of hydrogen begins to fuel gas turbines for power generation

The world’s first transocean shipment of hydrogen begins to fuel gas turbines for power generation. Image: Flickr/ Guilhem Vellut
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AHEAD is pleased to announce that it has reached an important milestone towards realizing a hydrogen- fueled society by commencing the supply of hydrogen separated from methylcyclohexane *2 at the dehydrogenation plant in the Keihin Refinery of Toa Oil Co., Ltd. in the coastal area of Kawasaki City to fuel gas turbines of Mizue Power Station under the “Demonstration Project for a Hydrogen Energy Supply Chain Utilizing the Organic Chemical Hydride Method*3,” which is undertaken by AHEAD with a subsidy from the New Energy and Industrial Technology Development Organization. 

This represents another step towards commercialization of the international hydrogen supply chain that consists of a series of processes from the production of MCH in Brunei to ocean transport to the separation of hydrogen from MCH in Japan, as the use of hydrogen shipped from abroad as fuel for power generation will create a substantial addition to hydrogen demand, which is expected to rise in the future. 

The Strategic Roadmap for Hydrogen and Fuel Cells established by the Ministry of Economy, Trade and Industry in March 2019 states the importance of hydrogen-fueled power generation, along with the transition to renewable energy, towards a low carbon society, setting the commercialization of hydrogen-based electricity as a goal to be achieved in 2030 in its Basic Hydrogen Strategy and Fifth Basic Energy Plan that lay out specific actions to be taken up to 2030. 

The supply of hydrogen to gas turbines marks the first consumption of foreign-produced hydrogen for power generation in Japan, leaving a significant footprint towards mass consumption of hydrogen in the electricity sector. 

AHEAD will continue to demonstrate the feasibility of international hydrogen transport through the pilot operation of the hydrogen supply chain in collaboration with its member companies, namely, Chiyoda Corporation, Mitsubishi Corporation, Mitsui & Co., Ltd., and Nippon Yusen Kabushiki Kaisha, as well as a growing circle of stakeholders. 

Overview

*2: Methylcyclohexane (MCH) 

An organic compound generated though the hydrogenation of toluene. It remains in a liquid state at an ambient temperature and pressure, and is used widely as solvent in liquid paper (correction fluid), etc. 

*3: Organic Chemical Hydride Method 

A technology developed for international shipment of hydrogen. Hydrogen and toluene procured from resource-rich countries are converted through a chemical reaction (hydrogenation) into methylcyclohexane (MCH), which remains in a liquid state at an ambient temperature and pressure. The MCH is stored and transported to a hydrogen consumer country, where it is separated (dehydrogenated) into toluene and hydrogen. The hydrogen is then supplied as gas to customers, and the toluene is shipped back to the origin countries,  where it is re-hydrogenated into MCH and reused for transporting hydrogen. 

Renewable Energy

A first of its kind: grid connection for the Moray East Offshore Windfarm project

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A first of its kind: grid connection for the Moray East Offshore Windfarm project. Image: Siemens
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In a world’s first, Siemens Energy is connecting three Offshore Transformer Modules® (OTM®), its range of AC offshore substation platforms, and will transmit the power generated from the 950MW Moray East Offshore Windfarm project, located 22km off the Aberdeenshire coast in Scotland.

On June 30, 2020, the first OTM began its journey from the fabricator to be installed at the offshore windfarm. The remaining two will sail out in the following months when commissioning will take place.
The OTM, which are significantly smaller in size and weight compared to conventional alternating current platforms, will transform the output of the wind turbines from 66 kilovolts to the transmission voltage of 220kV.
In 2018 Siemens Energy secured the contract to connect the wind farm to the grid and until today Moray East Offshore Windfarm represents the company’s largest UK grid access project.
The scope of supply includes the complete onshore substation including three SVC PLUS (STATCOM) as well as the three offshore substation platform topsides. In addition, Siemens Energy will install a 35km underground export cable to the onshore substation at New Deer in Aberdeenshire for the power generated.
The windfarm will be capable of providing low cost, low carbon power to approximately one million Scottish homes, making a significant contribution to meeting net zero ambitions.
Siemens Energy is a market leader in connecting offshore wind to the grid, with 6.5 gigawatts (GW) connected to date and a further 4.5GW under construction. Using its state-of-the art OTM technology the company continues to innovate and find ways to drive down costs for developers worldwide while meeting the energy demands of the future.

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Maritime

Jan De Nul successfully wraps up U.S. Coastal Virginia Offshore Wind project

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Jan De Nul successfully wraps up U.S. Coastal Virginia Offshore Wind project. Image: Jan De Nul
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Jan De Nul Group’s offshore installation vessels Vole au vent and Adhémar de Saint-Venant have left the United States after having successfully completed the installation of the Coastal Virginia Offshore Wind project.

Ørsted Wind Power North America LLC selected Jan De Nul Group to install a 12MW demonstrator Offshore Wind Farm, 27 miles off the coast of Virginia.

The Coastal Virginia Offshore Wind project, owned by Dominion Energy, is based on an Ørsted design and is only the second offshore wind farm in U.S. waters, after the 30MW Block Island Wind Farm, commissioned in 2016 at 3 kilometres off the coast of Rhode Island. Moreover, the Coastal Virginia wind farm contains the very first offshore wind turbines in U.S. Federal Waters.

“This contract is another important milestone for Jan De Nul’s international expansion in offshore wind farm construction”, says Philippe Hutse, Offshore Director of Jan De Nul Group. “After having expanded into Asia with the completion of the Formosa 1 Phase 2 project and with two further offshore wind projects under construction in Taiwan, Changhua OWF and Formosa 2 OWF, we are proud to have been able to support Dominion Energy and Ørsted in the U.S.”

Jan De Nul scope

The scope for Jan De Nul Group included the transport and installation of both offshore foundations and wind turbines, as well as the procurement and installation of the scour protection. Each foundation is composed of a monopile and transition piece.

Peter De Pooter, Manager Offshore Renewables at Jan De Nul Group, concludes: “This project is of great importance for Jan De Nul Group as it has given us the opportunity to work with local, state and federal government agencies in the U.S. and allowed us to familiarize ourselves with the construction of U.S. offshore wind farms.”

Jan De Nul’s offshore jack-up installation vessel Vole au vent delivered the installation works and was assisted by the multipurpose vessel Adhémar de Saint Venant to perform the scour protection works.

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Maritime

Ulstein Verft delivered the service operation vessel ‘WINDEA JULES VERNE’ 

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Ulstein Verft delivered the service operation vessel ‘WINDEA JULES VERNE’ Image: Ulstein
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Ulstein Verft has delivered the Service Operation Vessel ‘WINDEA JULES VERNE’ to Bernhard Schulte Offshore GmbH. The hybrid vessel will work at the Merkur Offshore Wind farm, where she will be operating for GE Renewable Energy.

Ulstein Verft has delivered the Service Operation Vessel ‘WINDEA JULES VERNE’ to Bernhard Schulte Offshore GmbH. The hybrid vessel will work at the Merkur Offshore Wind farm, where she will be operating for GE Renewable Energy.

The vessel for Bernhard Schulte is based on the ULSTEIN SX195 design from Ulstein Design & Solutions AS, which measures 93.4 m in length and 18m in the beam. It has accommodation for 120 people. The vessel functions as a ‘home away from home’ for numerous offshore wind service engineers as well as the ship’s crew. Much effort has been placed in keeping comfort high for those on board. Firstly, the X-BOW® and X-STERN™ lead to softer motions in head seas, significantly reducing slamming and vibrations. This leads to increased quality of sleep and rest when off shifts. There are also several lounges in close connection to the mess room, a gaming room, a library, saunas and an exercise room.

The vessel is equipped with a tower holding a personnel and equipment elevator and a heave compensated gangway for safe transferral to the offshore wind turbines for maintenance and service work. Besides the usual way of operation with the bow to the weather this vessel can move backwards with the stern first when operating infield and will as an add-on use a daughter craft to further increase the service capacity.

Merkur Offshore is located outside of Germany. The 66 turbines in this wind farm provide green energy for approximately half a million homes.

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