Technology
Rolls-Royce introduces lithium-ion battery system for ships
Color Line, Norled and the Norwegian Coastal Administration Shipping Company have trial the system.

Published
5 years agoon
By
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Engineering firm Rolls-Royce is launching SAVe Energy, a lithium-ion based energy storage system for ships.
SAVe Energy is a cost competitive, highly efficient and liquid cooled battery system with a modular design that enables the product to scale according to energy and power requirements.
The battery system also complies with international legislations for low and zero emission propulsion systems.
The system’s development work has been partly funded by the Norwegian Research Council of Norway’s ENERGIX program.
The three ship owning companies Color Line, Norled and the Norwegian Coastal Administration Shipping Company have been partners in the development, trialling the energy storage system on a wide variety of marine applications, including ferries, cruise vessels and multi-purpose vessels.
“The electrification of ships is building momentum,” says Andreas Seth, Rolls-Royce, EVP Electrical, Automation and Control – Commercial Marine.
“From 2010 we have delivered battery systems representing about 15 MWh in total. However now the potential deployment of our patent pending SAVe Energy in 2019 alone is 10-18 MWh.”
According to Seth, battery systems have become a “key component” of Rolls-Royce’s power and propulsions systems, and SAVe Energy is being introduced on many of the projects the company is currently working on.
“This includes the upgrade programme for Hurtigruten’s cruise ferries, the advanced fishing vessel recently ordered by Prestfjord and the ongoing retrofits of offshore support vessels,” he shares.
“As a system provider we can find the best solution considering both installation and operational cost.”
SAVe Energy is an ESU system (Energy Storage Unit), and was recently class approved by DNV GL, and is accepted for installation on all vessels classed by DNV GL.
Photo credit: Rolls-Royce
Published: 17 August, 2018
Newbuilding
Wärtsilä signs agreement for first zero-emission high speed ferries in US
Group has signed a strategic partnership agreement to provide its Fleet Electrification and Systems Integrator Services for a project to build the first zero-emission high speed ferries in the United States.

Published
4 hours agoon
November 29, 2023By
Admin
Technology group Wärtsilä on Tuesday (28 November) said it has signed a strategic partnership agreement to provide its Fleet Electrification and Systems Integrator Services for a project to build the first zero-emission high speed ferries in the United States.
The fully electric vessels will be built for San Francisco’s Water Emergency Transportation Authority (WETA), the operator of the San Francisco Bay Ferry system.
The project, and several others Wärtsilä will work on under this partnership, are a part of the agency’s Rapid Electric Emission-Free (REEF) Ferry Program, a phased decarbonisation of high-speed, high-capacity ferry service in the San Francisco Bay.
Wärtsilä will work within the WETA project team to finalise vessel and charging system concepts.
“We’re proud to operate the cleanest high-speed ferry fleet in the nation, but a zero-emission future for our system is within reach,” said WETA Executive Director, Seamus Murphy.
“Wärtsilä’s expertise and experience will be incredibly valuable given the complexity our ferry decarbonisation program entails.”
“This is a major project within the maritime sector’s journey towards decarbonisation, and we are proud to be a part of it,” said Hanno Schoonman, Director of sales for AMER region, Wärtsilä Marine Power.
“Wärtsilä joins an industry leading team tasked to develop newbuild battery electric vessels that combine innovative technology and sustainable practices. Wärtsilä is well qualified to provide this project support, and this agreement is a clear endorsement of our strong track record in systems integration and emission-free propulsion.”
After completing the conceptual phase, WETA will move on to the initial construction phase of a multi-vessel programme. This phase will involve the building of three smaller ferries with a capacity of approximately 150 passengers each and two larger ferries capable of carrying at least 300 passengers.
Additionally, the scope of this phase will encompass the inclusion of battery charging floats. The construction of the first electric-powered vessel is slated to commence before the conclusion of 2023, with commercial operations expected to launch in 2025.
Photo credit: Wärtsilä
Published: 29 November, 2023
Engine
MAN ES announces MAN 175D methanol dual-fuel engine will be available by 2026
Dual-fuel version of MAN 175D high-speed engine, capable of operating on methanol, will be available by the end of 2026; will be available both as newbuild and retrofit variants.

Published
1 day agoon
November 28, 2023By
Admin
MAN Energy Solutions on Monday (27 November) announced that a dual-fuel version of its MAN 175D high-speed engine, capable of operating on methanol, will be available by the end of 2026.
The new variant, designated MAN 175DF-M, will be available both as newbuild and retrofit variants.
MAN Energy Solutions states that the 175DF-M will be optimised for diesel-mechanical and diesel-electric propulsion to achieve the largest methanol share and best efficiency for various applications and load profiles. In fact, the engine has already been awarded the ‘fuel ready’ certificate by DNV, guaranteeing the introduction of this dual-fuel methanol technology.
“The 175D engine is MAN Energy Solutions’ latest addition to the high-speed maritime sector and is, as such, one of the pillars of its efforts to develop a methanol-ready engine portfolio as the demand for such technology has rapidly been increasing of late,” the firm said in a statement.
With its success in achieving series-approval for its two-stroke engines, MAN Energy Solutions said it has used this experience to develop an optimised solution for its four-stroke engines, including successful single-cylinder testing. As such, the results of these efforts will fuel the upcoming development and validation of the dual-fuel PFI (Port Fuel Injection) technology for its methanol-ready 175D engine.
Florian Keiler, Head of High Speed, MAN Energy Solutions, said: “The MAN 175D has proven to be very competitive in terms of sustainability and efficiency with the lowest fuel consumption, lowest lube-oil consumption and longest overhaul times in its class, minimising its environmental footprint. In terms of future fuels, the next logical step, apart from being able to run on 100% bio-fuels, is to ensure methanol combustion.”
“Based on numerous exchanges with customers, we came to the conclusion that the dual-fuel principle, reliability, efficiency, a high methanol share, competitive life-cycle costs and maximum achievable output were key requirements for the 175DF-M’s development. Therefore, after conscientious investigation and consideration, we settled upon the PFI combustion technology as the most favourable. Fundamental combustion development will start in 2024, leading up to a first field-test of the methanol engine in 2026. The MAN 175DF-M engine will subsequently be ready for sales release at the end of 2026.”
MAN Energy Solutions believes that PFI is the most advanced technology currently available. Its development targets a highest methanol share over a wide power range while achieving the highest cylinder output in its high-speed engine class. In particular, optimisation for diesel-electric multi-engine plants will allow operation of the engines at an optimal load point achieving the highest methanol share. As result, when using biofuels, the MAN 175DF-M’s carbon footprint will be reduced to zero while retaining full fuel-flexibility for operation anywhere in the world.
Photo credit: MAN Energy Solutions
Published: 28 November, 2023
Engine
Wärtsilä explains steps taken by Seaspan Ferries to slash 90% less carbon intensity
Wärtsilä explains three measures that helped Canadian ferry operator Seaspan Ferries slash the well-to-wake carbon intensity of one of its vessels by a colossal 90%.

Published
1 day agoon
November 28, 2023By
Admin
Technology group Wärtsilä Corporation on Thursday (23 November) explained the three measures that helped Canadian ferry operator Seaspan Ferries slash the well-to-wake carbon intensity of one of its vessels by a colossal 90%:
Seaspan Ferries Corporation’s cargo vessels provide a vital link between the Canadian cities around Vancouver and neighbouring Vancouver Island. As part of its commitment to reducing air emissions and preserving the pristine local environment, Seaspan Ferries upgraded the engine control software and operational profile of its hybrid ferries Reliant and Swift, slashing the well-to-wake carbon intensity of the vessels by a colossal 90%.
Seaspan Ferries Corporation (SFC) operates around the clock, seven days a week, and is by far the largest RoRo cargo carrier to and from Vancouver Island. The company has already gone a long way to reduce the environmental impact of its operations – for example, by adopting electrified port equipment and shore power systems as well as through its support for local environmental initiatives. In its latest move to reduce the carbon intensity of its vessels, SFC made three changes to its hybrid ferries Reliant and Swift to make the vessels even more environmentally friendly.
1 – Installing a greenhouse gas reduction package
The vessels’ engines have been upgraded with the Wärtsilä 34DF greenhouse gas (GHG) reduction upgrade. “This simple and cost-effective control software upgrade can reduce the greenhouse gas emissions of any vessel powered by Wärtsilä 34DF engines,” explains Mark Keneford, General Manager, Sales, Canada, Wärtsilä. The upgrade reduces unburned methane emissions – known as methane slip – by reducing the charge air pressure and air-fuel ratio at key load points. The GHG reduction package also included engine low load optimisation, which further reduces methane slip by disabling some of the engine cylinders at low loads and allowing others to take higher loads.
2 – Switching to renewable fuel
The Reliant and Swift are both powered by two Wärtsilä 34DF engines, a medium-speed 4-stroke marine engine with fully fuel-flexible operation. The Wärtsilä 34DF engines onboard the Reliant and Swift can run on LNG, MDO or biofuels. Seaspan took advantage of this fuel flexibility by switching to 100% biodiesel for the pilot fuel and renewable LNG for the main fuel when it is available. This switch dramatically reduced the vessel’s carbon footprint in the process.
3 – Upgrading the battery
SFC upgraded the vessels’ onboard battery capability to reduce engine operating hours. The upgrade made it possible to switch from running two engines at low load, which increases methane slip, to running one engine at a higher load, which further minimises methane slip and other emissions.
Impressive results with a real impact
These three steps reduced the well-to-wake carbon intensity of the Reliant by an impressive 90%. The University of British Columbia confirmed the reduction in a published paper. “We’re really happy with these results,” says Harly Penner, Vice President, SFC. “The improvements fit with our vision of reducing the carbon footprint of our operations while continuing to improve the quality and efficiency of our services for customers in British Columbia.”
Wärtsilä and SFC are continuing to collaborate on solutions to further reduce the GHG impacts of the vessels’ operations. Recently, the Wärtsilä SmartDock autonomous docking system was commissioned onboard the Reliant and Swift to increase safety and improve operational efficiency. These vessel upgrades are all part of Seaspan’s strategy. Naturally, Wärtsilä will be on hand to offer support and expertise as Seaspan continues its decarbonisation journey
Photo credit: Seaspan
Published: 28 November, 2023

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