Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Siemens builds the first European onshore power supply for cruise ships


The Hamburg Port Authority (HPA) has commissioned Siemens to build a turnkey onshore power supply at the Hamburg Altona cruise terminal. The system will supply electricity to cruise ships of all common sizes and electrical system designs, allowing them to turn off their own diesel generators and reduce harmful emissions during their lay days.

The first European onshore power supply system of this type has a capacity of 12 megavolt amperes (MVA) and works with a patented, mobile robot arm designed specifically for the tidal range. The heart of the system is a frequency converter with control software that adjusts the frequency of the local distribution grid to the ship's electrical system.

The onshore power supply system from Siemens works with a patented, mobile robot arm designed specifically for the tidal range.

The scope of supply for Siemens, in its capacity as general contractor, includes the medium and low voltage switchgears, the transformers, the fire safety system and the building's air conditioning and ventilation system. Commissioning is scheduled for the spring of 2015. The order volume will run to around €8.5 million.

The onshore power supply system from Siemens meets the required international standards IEC/ISO/IEEE 80005-1 (cable connection between shore and ship on the medium voltage side) and IEC 62613-2 (connectors and sockets).

The modular system from Siemens covers all power ranges required in the shipping industry and is suitable for the world's common ship frequencies (50 and 60 Hertz) as well as all necessary voltage levels for shipping. Voltages of 6 or 10 kilovolts (kV) are provided in the 50-Hertz range and 6.6 or 11 kV in the 60-Hertz range. In principle, for example, 50 Hertz AC current is converted to 60 Hertz AC current during frequency conversion.

In the Siemens system, two converters are therefore connected to back to back by a DC link, and each converter is connected to the onshore and onboard converter transformers. As a result, the system is able not only to power an isolated network from a distribution grid but to harmonize power supply grids having different parameters and to connect them to each other.

Siemens uses a multi-level converter on the ship facing side onshore, which guarantees a harmonic-free alternating current characteristic. Converter transformers are used to connect the system to the supply grid. The transformer on the ship facing side ensures galvanic isolation between the ship and shore grids, as required by IEC 80005-1.

The system has a specially developed cable management system for cruise ships that provides a fast, easy and flexible connection between the shore and the ship. The system is self-propelled and can be automatically operated from the ship as needed, so that no additional specialists are needed on shore. A concrete channel along the quay wall guides a high tide-resistant cable chain for system mobility and is designed with a length of 300 meters for this project.

A robot arm is used to transport the power cable connectors and the communication link into the ship through the outer hatch, like on a tray. Developed jointly between Siemens and Stemmann Technik in Schüttorf, this technology also compensates for the tidal range during power supply. Power is transferred to the ship without slip rings, making it immune to dysfunction.

The concrete channel's steel plate cover can easily support the required axle loads, so that telescoping cranes, trucks and buses can drive over the quay operating area with no restrictions during the lay days. The cable management system is stored in a high tide-protected garage when not in operation, thus meeting the Hanseatic City of Hamburg's requirement for granting visitors public access to wharfage.

One of the main causes of local air pollution in ports is the combustion of ship fuels for generating electricity during lay days. Reducing harmful emissions due to shipping is a concern in port cities around the world. For more than ten years now, the European Commission has recommended, through regulations, incentives and access facilitation, that port authorities provide ways for ships to use onshore power sources during lay days in port.

This recommendation was last specified and expanded in 2006. In 2013, the European Commission also drew up a proposal for a directive on "Deployment of alternative fuels infrastructure." According to this proposal, the greenhouse gas emissions caused by traffic must be lowered by 60 percent by 2050. Alternatives such as electricity at berths and liquefied natural gas (LNG) during transport are gaining in importance in seaports. According to Article 4 of the proposal, the member states are to ensure that an onshore power supply for ships is provided in most seaports and inland harbors.

For further information on onshore power supply, please see

The Siemens Infrastructure & Cities Sector (Munich, Germany), with approximately 90,000 employees, focuses on sustainable and intelligent infrastructure technologies. Its offering includes products, systems and solutions for intelligent traffic management, rail-bound transportation, smart grids, power distribution, energy efficient buildings, and safety and security. The Sector comprises the divisions Building Technologies, Low and Medium Voltage, Mobility and Logistics, Rail Systems and Smart Grid.
For more information visit

The Siemens Low and Medium Voltage Division (Erlangen, Germany) serves the entire product, system, and solutions business for reliable power distribution and supply at the low- and medium-voltage levels. The Division's portfolio includes switchgear and busbar trunking systems, power supply solutions, distribution boards, protection, switching, measuring and monitoring devices as well as energy storage systems for the integration of renewable energy into the grid. The systems are supplemented by communications-enabled software tools that can link power distribution systems to building or industry automation systems. Low and Medium Voltage ensures the efficient supply of power for power grids, infrastructure, buildings, and industry. Additional information is available on the Internet at:

Reference Number: ICLMV20140503e


Mr. Heiko Jahr
Low and Medium Voltage Division

Siemens AG

Freyeslebenstr. 1

91058  Erlangen


Tel: +49 (9131) 7-29575

Heiko Jahr | Siemens Infrastructure & Cities

Further reports about: Division IEC Medium capacity connection electricity emissions fuels voltage

More articles from Power and Electrical Engineering:

nachricht 'Super yeast' has the power to improve economics of biofuels
18.10.2016 | University of Wisconsin-Madison

nachricht Engineers reveal fabrication process for revolutionary transparent sensors
14.10.2016 | University of Wisconsin-Madison

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

Im Focus: New Products - Highlights of COMPAMED 2016

COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.

In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...

Im Focus: Ultra-thin ferroelectric material for next-generation electronics

'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.

Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Innovative technique for shaping light could solve bandwidth crunch

20.10.2016 | Physics and Astronomy

Finding the lightest superdeformed triaxial atomic nucleus

20.10.2016 | Physics and Astronomy

NASA's MAVEN mission observes ups and downs of water escape from Mars

20.10.2016 | Physics and Astronomy

More VideoLinks >>>