Energy Savings News

A new generation of hybrid vessels is demonstrating significant gains in both fuel economy and operational output. For Olympic Subsea’s owner and CEO Stig Remøy, it proves that technology-led efficiency is the fastest path to decarbonization—and a powerful business case.When Stig Remøy began pivoting Olympic Subsea toward subsea and renewables a decade ago, the move was met with some internal skepticism. “Naturally, there were internal discussions — some believed oil and gas was the future,” he recalled.

Finland-based Bluetech has partnered with NYSE-listed INSW to develop Bluetech’s new ‘SeaWasp’ tanker vessel design, purpose-designed for wind but still practical for INSW MR fleet operations.With the support of wind-propulsion specialist Norsepower, Bluetech modified its BT50 design to extract maximum forward thrust from two 35-metre Rotor Sails. This resulted in a total savings of up to 876kW of propulsion power on one representative INSW MR tanker route from San Francisco to…

Second of Two Large Car Ferries Ordered by Shinnihonkai Ferry and Japan Railway Construction, Transport and Technology Agency Second ferries in Japan to use a buttock-flow stern hull and ducktail design, providing energy savings of 5%  Delivery scheduled for June 2026, planned to go into service between Otaru and MaizuruMitsubishi Shipbuilding Co., Ltd., a part of Mitsubishi Heavy Industries (MHI) Group, held a christening and launch ceremony on October 9 for the second of two large car ferries ordered by Shinnihonkai Ferry Co., Ltd.

Earlier this year, the Port of Tyne became the first port in the UK to invest in a fully electric foiling pilot boat, designed and built by Belfast-based Artemis Technologies.This week, the Artemis eFoiler technology, which will be powering the pilot boat that is set to join the Port of Tyne’s fleet in 2026, has taken to the River Thames onboard the Artemis EF-12 Workboat for an international showcase set against the backdrop of Tower Bridge.Using advanced hydrofoiling technology to lift its hull above the water…

New insights from DNV’s Maritime Forecast to 2050 indicate that the number of alternative-fuel-capable vessels in operation is set to almost double by 2028.By 2030, the alternative-fuelled fleet will be able to burn up to 50 million tonnes of oil equivalent (Mtoe) of low-greenhouse gas (GHG) fuels annually, double the estimated volume needed to meet the IMO 2030 emissions target.Yet today, actual consumption of low-GHG fuels remains at just 1 Mtoe.The widening gap between capacity…

Stena Line has announced the concept for a new generation vessel: Stena Futuro, a 240-meter-long roro intended for transporting semi-trailers and cars.The hull and superstructure have been optimized to achieve the most efficient use of cargo space possible. At the same time, low weight and optimized hydro- and aerodynamics are central to achieving low fuel consumption.In addition to the vessel’s design, Stena Futuro will be equipped with technology to limit its environmental footprint.

Taiwanese shipping firm Yang Ming Marine Transport Corp has purchased three 8,000 TEU methanol dual-fuel-ready container ships from Japanese ship leasing company Shoei Kisen Kaisha.The vessels, being built by Imabari Shipbuilding, are scheduled for delivery between 2028 and 2029.Yang Ming said the acquisition will strengthen its global service network and reinforce its commitment to providing customers with reliable and sustainable transportation service.To support business growth and maintain core competitiveness…

As the International Maritime Organization (IMO) prepares to meet in London from March 31 to April 11 to finalize measures for its greenhouse gas (GHG) strategy, a new report by marine NGO Seas At Risk shows the economic and climate benefits of using wind-assisted propulsion to power global shipping.The ‘Wind First!’ study shows that retrofitting sails on large, existing vessels can save close to half a million U.S. dollars on fuel costs and reduce fuel consumption and carbon emissions by up to 12%…

Hoyer, a leader in electric motors and automation solutions, announced the launch of Hoyer ESS (Energy-Saving System) at Sea Asia 2025 in Singapore. Specifically designed for retrofits on operating vessels, Hoyer ESS offers shipowners, operators, and fleet managers a fast-track solution to reduce motor energy consumption by 40-65% while lowering emissions and improving operational efficiency—all without the need for drydocking.With tightening environmental regulations like EEXI…

Goltens Worldwide announced a new distribution agreement with Denmark's Marine Fluid Technology A/S (MFT) covering MFT’s SEA-Mate Blending-on-Board (BOB) system, SEA-Mate Filter system and other SEA-Mate products across key maritime markets in Singapore, Indonesia, India, the Philippines, and the Middle East including the UAE, Saudi Arabia, Bahrain, and Qatar.SEA-Mate Blending-on-Board is touted as a revolutionary technology designed for ship owners to rethink their lubrication oil use by recycling and enhancing engine efficiency and reducing operating costs…

Each year, as we prepare for the largest U.S. based maritime industry conference in New Orleans, we tend to look back on the state of the industry and initiatives that were announced from the conference that took place the year before. 2023 provided us with plenty to talk about. In September of 2023, while the International Maritime Organization (IMO) and the global shipbuilding industry were fixated on “emissions” and alternative fuels, U.S. Secretary of the Navy Carlos Del Toro held the opening meeting of the Government Shipbuilders Council.

Hurtigruten released updated plans for its Sea Zero project, a zero-emission ship scheduled to debut in 2030 which is now in its R&D phase. The ship, as designed today, will lean on large batteries, sails, and other solutions to sail emission-free during normal operation, while energy consumption could be reduced by 40-50%.Hurtigruten announced its Sea Zero project in October 2022, and unveiled its first set of renderings in summer 2023. A second version of renderings are now released…

Hurtigruten has released updated plans for its Sea Zero project, the zero-emission ship scheduled to debut in 2030.With the help of large batteries and sails, the ship will be able to sail entirely emission-free during normal operation, with energy consumption reduced by 40-50%.Hurtigruten initially announced its Sea Zero project in October 2022, and then unveiled its first set of renderings in summer 2023. This latest advancement was developed in the Norwegian city of Ålesund by Vard…

Two mechanical sails have been installed on board Jumbo's heavy lift vessel (HLV) Jumbo Jubilee. The wind assisted ship propulsion (WASP) solution is the latest in a series of innovative technologies installed to the vessel in a bid to boost fuel efficiency and cut carbon.Jumbo is committed to advancing sustainable heavy-lift shipping with innovative energy-saving and decarbonization initiatives across its fleet, said Jumbo Maritime CEO Daan Kornneef.“At Jumbo, we believe that every step towards sustainability is crucial.

Reaching the International Maritime Organization’s (IMO) target of a 20% reduction in shipping emissions by 2030 will hinge on significant advancements in energy efficiency, according to DNV's latest Maritime Forecast to 2050. The report underscores the need for immediate action to enhance energy savings, especially as carbon-neutral fuels remain limited and costly.To meet the IMO’s decarbonization goal, the shipping industry will require between 7 and 48 million tonnes of carbon-neutral fuels by 2030.

Kongsberg Maritime’s rim-drive azimuth thruster has achieved Silent-E notation from DNV, the first of its kind to receive this certification.Installed on the new commissioning service operation vessel (CSOV) Norwind Hurricane and its sister vessels, the thruster demonstrated exceptional performance in reducing underwater noise pollution during a recent trial.To assess the noise levels of the Norwind Hurricane, an extensive underwater noise study was conducted using hydrophones placed on the seabed.

NYK has tested its Hz Navi system which can reduce the energy consumption of marine generators by lowering their frequency.Current generator frequencies are set so that onboard equipment such as pumps and motors, which operate in conjunction with the power supply frequency, can perform adequately even under the worst conditions. However, operating at the normal frequency during normal navigation consumes extra power. Therefore, NYK developed a system that can reduce fuel consumption by lowering the frequency to best match optimal specifications.With Hz Navi…

Kongsberg Maritime has been tasked to conduct energy efficiency upgrades on Solstad’s Normand Sentinel, one of its most prominent subsea construction vessels.This upgrade will see the vessel transition to Kongsberg Maritime’s electric rim-drive azimuth thrusters, marking a milestone in maritime energy efficiency.The Normand Sentinel, measuring 143 metres in length and boasting years of reliable service, is set to receive this upgrade during its next scheduled drydocking.The vessel’s…

As part of its ongoing Aquarius Eco Ship Project, Eco Marine Power and Nakashima Propeller will explore the further use of carbo-fiber reinforced plastic (CFRP) and glass-fiber reinforced plastic (GFRP) for ship structures and other maritime applications.Eco Marine Power will also investigate the use of CFRP propellers to improve energy efficiency and reduce underwater noise created by ship propulsion systems.CFRP & GFRP are composite materials that can offer a versatile and efficient solution for a range of ship structures by providing a balance of strength…

Compliance, performance, profitability, sustainability; take the biggest ‘pain points’ for almost any shipping company and watch NAVTOR’s digital ecosystem work wonders. Here Tor Svanes, Founder and CEO, explains how NAVTOR has grown to lead the smart shipping world, why the recent merger with Voyager Worldwide was so critical, and how he hopes to help steer the industry towards brighter, simpler, and more intelligent horizons.“The morning of the announcement I got a text from the boss of one of our biggest competitors…

NYK Stolt Tankers, a joint venture between NYK Line and Stolt Tankers, has placed an order with Nantong Xiangyu Shipyard in China to build six 38,000 deadweight tonne stainless steel chemical tankers for delivery between late 2026 and 2029.The newbuilds will be sisters to a series of six vessels Stolt Tankers ordered at Wuhu Shipyard in November. The ships feature 30 cargo tanks, offering a range of cargo flexibility and are designed to maximize fuel efficiency using a wide range of energy savings devices and shore power connection, Stolt Tankers said.

Hapag-Lloyd reports it has initiated a conceptual study for a 4,500 TEU ship featuring a wind-assisted propulsion system.The German shipping company, which aims to be carbon neutral by 2045, is exploring the use of wind-assisted propulsion systems among a number of options to make its shipping operations sustainableThe company said its recent wind-assisted propulsion research is supported by Boris Herrmann and TEAM MALIZIA from the professional sailing sector and have now outlined a potential containership design. The vessel's design includes eight sails totaling 3,000 square meters.

W&O Supply will add BROEN Clorius Controls' low-leakage valves to its portfolio of marine valves, actuated valves, pipes and engineered solutions.Engineered to helping vessel owners and operators in the international maritime industry to reduce their carbon emissions, the new product is an ultra-low leak three-way valve especially designed for HT-systems on 2-stroke main engines. It increases system efficiency, helping save fuel and reduce CO2 emissions.Compared to most valves…