Navigating to net-zero maritime transport

The global shipping industry is the backbone of international commerce, transporting a staggering 80 percent of global trade. However, this vital function comes at a significant environmental cost. Accounting for roughly three percent of global greenhouse gas emissions, the industry is a major contributor to climate change [1].

Web Story

3min

2024-06-13

01

The maritime sector accounts for roughly three percent of global greenhouse gas emissions and now faces challenging net-zero targets

02

The global energy transition means recognizing that every vessel - whether long- or short-haul - can be decarbonized

03

ABB is working with operators throughout the industry to optimize operations, electrify fleets and reduce carbon footprints

Greenhouse Gas Strategy

The International Maritime Organization (IMO) has adopted a revised Greenhouse Gas Strategy [2] that sets a target for:

reduction 30-50%

by 2030

reduction 70-80%

by 2040 [3]

emissions Net-zero

by 2050

Now, industry leaders are charting a course towards a cleaner future, one where the emissions of every vessel – both long-haul shipping and short-haul operations – can be reduced.

ABB and the energy transition at sea

As a key partner in the maritime industry's transformation, ABB stands as a global technology leader in the energy transition. From pioneering electrification, automation and digitalization solutions to powering vessels and optimizing port operations, ABB's comprehensive portfolio is helping the maritime sector decrease emissions.

The urgency to decarbonize the maritime industry is undeniable. With its significant contribution to global emissions, this sector has a crucial role to play in achieving climate goals. ABB is developing and supplying the electrification, automation and digitalization solutions that will empower the shipping industry's journey towards net zero.

Juha Koskela, President, Marine & Ports, ABB

Shore-to-ship power: Electrifying ports

Even when  docked, ships require energy for on-board systems like lighting and refrigeration. One of the important   strategies for reducing emissions in the industry is shore-to-ship (STS) power.

 

This approach involves supplying docked vessels with electricity from land-based grids, eliminating the need for onboard generators that typically run on heavy fuel oil.

 

Several ports around the world, including the Port of Marseille, have already implemented the technology successfully. As infrastructure expands and costs decrease, STS power  will play an increasingly crucial role in reducing emissions from shipping.

Microgrids and energy storage on board

To further reduce reliance on fossil fuels, on-board microgrids are gaining traction. Microgrids are self-contained energy systems that can combine traditional and renewable energy sources such as green hydrogen with energy storage solutions like batteries. This allows for cleaner and more efficient power generation even at sea.

 

Energy storage is a critical component in the net zero journey. Batteries can store excess electricity generated from shore power or renewable sources on board, allowing vessels to operate on clean energy even when disconnected from land-based grids. Advanced battery technology with increased capacity and faster charging times is crucial for making this approach truly viable for long-distance voyages.

Electrifying the short haul

For shorter routes, particularly ferries, tugboats or other vessels operating within harbors and inland waterways, complete electrification is a viable solution. All-electric ferries and tugs, powered by battery packs and charged at terminals, are already operating in various parts of the world.

 

These vessels operate with zero emissions while making the ride more comfortable for both passengers and crew with quieter  operation, lower vibrations and no exhaust.

 

ABB delivered an integrated electric propulsion system and advanced vessel control technology for the US’s first all-electric, battery-powered harbor tugboat, the Crowley eWolf, built for sustainable and safe operations at the Port of San Diego.

 

In its first 10 years of operation, eWolf is expected to eliminate 170 tons of nitrogen oxides (NOx), two tons of diesel particulate matter, and 3,100 tons of CO2 compared with a conventional tug. It will be supplied with power by a shoreside microgrid charging station.

Data-driven operations

Digital technologies are also playing an important role in the maritime industry’s push for net zero. By installing sensors throughout a ship, it's possible to collect real-time data on various parameters – engine performance, fuel consumption, weather conditions, and cargo weight distribution. This data can be analyzed using advanced software to identify areas for improvement.

 

For example, AI and context-specific algorithms can analyze engine performance data to detect inefficiencies and recommend adjustments to optimize fuel burn. Additionally, real-time weather data can be used to optimize routing and sailing speeds, minimizing fuel consumption required to reach the destination.

 

Power energy management system (PEMS™) is another crucial tool for enhancing onboard efficiency. This system integrates data from various sources and provides a holistic view of a ship's energy consumption. PEMS™ can be used to monitor and control onboard systems, automatically adjusting power settings to optimize energy use based on real-time needs.

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