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Grimaldi Group speaks about vessel energy efficiency

Dario Bocchetti speaks with RINA about the major advantages associated with saving energy.

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The following is an interview conducted between classification society RINA and Dario Bocchetti, Energy Saving Manager at Grimaldi Group:

Saving energy has major advantages and no disadvantages. By implementing innovative technologies and smart policies to improve energy efficiency on our ships, we significantly reduce fuel consumption and costs. Saving fuel goes hand in hand with controlling emissions of greenhouse gases and protecting the environment. In turn, stronger environmental protection measures help us comply with international emissions regulations. I’m responsible for energy efficiency and innovation for over 100 ships in the Grimaldi Group, so in our case these advantages are multiplied by 100. It is immensely satisfying to see the real, positive results of our efforts in terms of cost savings, environmental conservation and compliance.

We innovate constantly in order to optimise the energy consumption of our fleet. A good example is our recent order of six hybrid ro-ro vessels from CSC Jinling Shipyard in China, for delivery starting from 2020.

In order to achieve this fuel efficiency, the ships will be equipped with some cutting-edge technologies. Among these are two-stroke, electronically controlled engines, which offer lower consumption than four-stroke engines. Twin shaft lines and a combined rudder-propeller propulsion system will also improve efficiency. The hull will be optimised with a “reverse bulb” design and a special low-friction silicon coating. An air lubrication system under the keel will create a carpet of bubbles to reduce hydrodynamic resistance.

The new vessels will also be equipped with mega lithium batteries that are, until now, the world’s most powerful batteries ever to be installed on a ship. Charged during navigation via shaft alternators and taking advantage of solar panels and a number of energy-saving devices while at sea, they will be able to offer eight hours of zero-emissions power while the ships are in port. The batteries will also provide benefits during navigation through “peak shaving”, i.e. maintaining a constant, efficient engine speed and using the batteries to make any necessary adjustments.

Implementing all these innovative technologies will certainly be a challenge, but we are confident that with the support of RINA and Jinling Shipyard we will be successful. Jinling’s specialist experience in building ro-ro and car carrier vessels is one reason we chose them for the newbuilding project. In addition to the price competitiveness of Chinese shipbuilding, we have had good experiences working with Jinling over the last 10 years and they have always delivered on schedule. Our relationship with RINA is also excellent. Their approach to new technologies is practical and realistic, allowing us to achieve challenging projects by working together.

For existing ships and those scheduled for delivery in 2020, we will combine scrubbers with the use of batteries in port not just in order to comply with the IMO sulphur emissions cap but to go beyond it. It is not viable to retrofit existing ships to run on LNG, and reliable infrastructure to supply gas and electricity is not available in all ports. Perhaps in the future, we will be able to build ships powered purely by hydrogen. However, given the current situation of ships, ports, infrastructure and logistics, and given the type of ships in our fleet and the routes that they operate, scrubbers plus batteries are the winning solution for us. In fact, two of our super-large Grimaldi Lines ferries – Cruise Roma and Cruise Barcelona – will undergo extensive refitting work next January, including extensions and the installation of scrubbers and batteries.

As well as physical measures to improve the efficiency of our operations, we are also adopting new digital technologies to help us with this. In addition to powerful monitoring systems to optimise energy efficiency during navigation and in port, we benefit from digital technologies that help us to manage bookings, organise logistics, communicate and share information, take care of customs formalities, and so on.

Working with experienced partners helps us to innovate and constantly optimise energy efficiency across the fleet. Most of our ships are classed by RINA and we have benefited from their assistance during newbuilding projects and many other initiatives. By adopting suitable technologies and taking bold steps to reduce fuel consumption and emissions, we will continue to elevate the image of Grimaldi Group as a forward-thinking company strongly committed to innovation and sustainability.

Photo credit: Grimaldi Group
Published: 26 June, 2018

 

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Environment

Indonesia to expedite removal of sunken Malaysia-flagged tanker “Silver Sincere”

Vessel sank while carrying about 1,000 mt of waste oil on 12 January 2025; the wreck was discovered in March 2025 and was found to have drifted about 13 nautical miles from its original sinking site.

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Indonesia to expedite removal of sunken Malaysia-flagged tanker “Silver Sincere”

Indonesia’s Coordinating Ministry for Political and Security Affairs on Tuesday (14 July) held a cross-agency coordination meeting to expedite efforts in handling the Malaysian-flagged tanker Silver Sincere that sank off Bintan Regency, Riau Islands.

The vessel sank while carrying about 1,000 metric tonnes (mt) of waste oil on 12 January 2025. 

According to authorities, the ship sank within Indonesian waters. After several surveys, the wreck was finally discovered in March 2025 and it was found to have shifted approximately 13 nautical miles from the initial sinking location.

The meeting was aimed to align cross-ministerial and institutional measures to expedite the handling of the Silver Sincere wreck while minimising risks to shipping safety, the marine environment, and national interests.

Deputy for Coordination of State Defense and National Unity Purwito Hadi Wardhono emphasised that the handling of the impact of the Silver Sincere sinking was the first case to be comprehensively coordinated, serving as a model for handling foreign vessels sinking within Indonesian jurisdiction.

Through this cross-sectoral coordination, the government will establish a clear and measurable framework that can serve as a reference for resolving similar cases in the future, while minimising state losses due to environmental pollution, damage to underwater ecosystems and infrastructure, and disruption to shipping lanes.

“The most important thing is to immediately stop and prevent the negative impacts of this ship sinking,” Purwito said.

“Therefore, a coordinating role is crucial, as maritime security governance involves various ministries and institutions with varying authorities, allowing for faster, more integrated, and more effective response,” he said. 

He added that the Silver Sincere was a Malaysian-flagged vessel that sank within Indonesian jurisdiction, and therefore, all handling processes must comply with the provisions of Indonesian laws and regulations.

In the meeting, Prof. Eko Ganis Sukoharsono, representing the SAE Energy Consulting Team, presented the results of an analysis based on 14 observation periods using Sentinel-1 Synthetic Aperture Radar (SAR) satellite imagery. 

The analysis results showed strong indications of a waste oil spill that has resulted in marine pollution, damage to the seabed due to shifting shipwrecks, disruption of coastal ecosystems and fishing grounds, and potentially threatening the livelihoods of fishing communities around the Riau Islands. 

Purwito added these findings further emphasise the importance of accelerating the removal of the shipwrecks to prevent widespread environmental impacts, maintain shipping safety, and avoid the potential for greater state losses.

The meeting brought together representatives of related ministries and institutions including the Ministry of Foreign Affairs, Ministry of Defense, Ministry of Transportation, Ministry of Maritime Affairs and Fisheries, Ministry of Environment, Attorney General’s Office.  

Related: MPA: Malaysia-registered tanker “Silver Sincere” sinks off Pedra Branca

 

Photo credit: MarineTraffic / Julian T
Published: 20 July, 2026

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Methanol

China launches methanol shipping supply chain alliance to accelerate green transition

Marine fuel suppliers in the alliance include Sinopec Fuel Oil Sales, China Marine Bunker (PetroChina), SIPG Energy (Shanghai), and Shenzhen Port Energy Development.

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China Waterborne Transport Research Institute under the Ministry of Transport and China Transport News recently jointly launched a Methanol Fuel Shipping Supply Chain Innovation Alliance with 20 organisations spanning the shipping, port, energy, equipment, research and industry association sectors.

The alliance was officially announced during the main event of China Maritime Day 2026 on 11 July, where members also released a joint initiative to develop a collaborative methanol-fuelled shipping supply chain.

The alliance aims to implement China’s national strategy for green economic transformation and support the Ministry of Transport’s “One Network, Four Modernisations” initiative by building a safe, efficient, economical and reliable methanol marine fuel supply chain

Under the joint initiative, alliance members pledged to align with China’s national decarbonisation strategy by promoting methanol as a key pathway for the shipping sector’s green transition and optimising the industry’s energy mix.

The members also pledged to strengthen collaboration across the supply chain to improve coordination between bunker fuel production, transportation and end users while advancing technological innovation.

Lastly, the alliance will support the development of policies, planning and technical standards, promote resource sharing and joint research, and accelerate the large-scale adoption of methanol as a marine fuel.

The alliance brings together companies and organisations representing the entire methanol shipping supply chain.

Members include shipping and port members such as China Changjiang National Shipping (Group) Corporation, COSCO Shipping Bulk Co., Ltd., Shandong Port Group, and Wuhan Chuangxin Jianghai Shipping Co., Ltd.

Energy companies in the alliance include Sinopec Chemical Commercial Holding Company Limited and Methanex Corporation.

Marine fuel suppliers including Sinopec Fuel Oil Sales, China Marine Bunker (PetroChina), SIPG Energy (Shanghai) Co Ltd and Shenzhen Port Energy Development Co Ltd are also part of the alliance. 

Equipment manufacturers in the alliance are CSSC 711th Research Institute, CSSC Power (Group) Corporation Ltd and Chongqing Hongjiang Machinery Co Ltd.

Research, media and industry organisations participating in the alliance include the China Waterborne Transport Research Institute, China Transport News, and the Methanol Institute.

The Methanol Institute said methanol is moving beyond individual projects towards coordinated action across the entire value chain. 

“And China continues to play a leading role in advancing methanol as a marine fuel,” it said in a social media post.  

“We’re proud to work alongside our fellow alliance members to help strengthen the methanol supply chain and support the continued growth of methanol as a marine fuel.”

 

Photo credit: David Yu from Pixabay
Published: 17 July, 2026

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Wind-assisted

DNV awards TADC to Econowind for VentoFoil 3-Series

System actively harnesses wind power to generate forward thrust, helping to reduce bunker fuel consumption and mitigate FuelEU penalties.

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DNV awards TADC to Econowind for VentoFoil 3-Series

Dutch wind-assisted propulsion technology firm Econowind on Wednesday (15 July) said it has received a Type Approval Design Certificate (TADC) from classification society DNV for its VentoFoil 3-Series boundary layer suction wing. 

The company said the certification confirms compliance with DNV’s ST-0511 standard for Wind-Assisted Propulsion Systems and enables easier integration of VentoFoils on DNV-classed vessels worldwide. 

Econowind added that the approval accelerates the deployment of wind propulsion across the shipping industry.

“DNV is one of the world’s leading classification societies. This TADC gives DNV-classed shipowners confidence that VentoFoils meet the highest industry standards,” said Chiel de Leeuw, Chief Commercial Officer at Econowind. 

“It simplifies the approval process for both retrofits and newbuilds. VentoFoils are ideal for late-stage design integration and retrofit projects. This is an important milestone for Econowind and for the wider adoption of wind-assisted ship propulsion.”

The 3-Series VentoFoil is Econowind’s best-selling suction wing to date, with over 150 units sold. The system actively harnesses wind power to generate forward thrust, helping to reduce fuel consumption and mitigate FuelEU penalties. The system includes a tilting foundation, allowing the wings to be tilted down during port operations or in adverse weather conditions, making it a flexible solution.

The TADC applies to the 16-meter VentoFoil 3-Series product design and supports easy integration into DNV-classed vessels without repeating the full design assessment process. This enables shipowners, shipyards, and project teams to move more efficiently from concept to installation, reducing project complexity and accelerating deployment. 

Hasso Hoffmeister, Senior Principal Engineer at DNV Maritime, said: “It is a great pleasure to award Econowind this new certificate. WAPS have been going from strength to strength over the past few years, from 2022 the number of vessels in operation has increased five times, and we’ve now topped the century mark. 

“And with the current advances in technology, materials, and production capacity in the segment, we expect this to accelerate. So, while the wind always changes, the shipping industry is likely to be sailing strong for years to come.”

Econowind expects the DNV Type Approval Design Certificate to accelerate adoption of the VentoFoil, particularly among shipowners seeking proven, independently certified technology that can support fuel savings, emissions reductions, and decarbonization goals.

MS Heinz of HS Schiffahrt is among the first vessels to sail under this TADC.The company said the approval builds on Econowind’s growing installed base and further strengthens confidence in wind-assisted ship propulsion as a practical solution to address energy scarcity and high fuel prices. 

In addition to the 3-Series, Econowind offers the 5-Series for the deep-sea market.

 

Photo credit: Econowind
Published: 17 July, 2026

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