In August 2024, PD Ports, a major UK port operator, added a new state-of-the-art trailing suction hopper dredger (TSHD) to its fleet: the Emerald Duchess. Designed by DEKC Maritime, a renowned Dutch naval architecture firm, the vessel is built to meet the highest environmental and safety standards. This addition highlights PD Ports’ commitment to eco-friendly and efficient dredging operations.
Cutting-Edge Hybrid Propulsion for Enhanced Efficiency
Hybrid Propulsion System for Flexibility and Sustainability
The Emerald Duchess features a hybrid propulsion system, integrating both a battery pack and engines capable of running on renewable hydrotreated vegetable oil (HVO). This innovative combination allows for quick transitions between power sources, providing greater operational flexibility when dredging and navigating between work sites.
With the ability to swiftly switch between battery power and HVO, the Emerald Duchess significantly reduces emissions while maintaining operational efficiency. This feature is particularly beneficial when working across multiple sites in a single day.
Future-Ready with Potential for Fuel Cell Technology
Designed with sustainability in mind, the Emerald Duchess is ready for future advancements in fuel technology. The vessel can be easily modified to accommodate ethanol and methanol fuel cells as the technology becomes available. Hatches above the engine room are specifically designed to allow quick upgrades, ensuring the ship remains at the forefront of low-emission technology.
Intelligent Energy Management and Efficient Hull Design
Optimized Hull for Reduced Fuel Consumption
One of the standout features of the Emerald Duchess is its streamlined hull design, which minimizes fuel consumption, further reducing its environmental footprint. This design ensures that the vessel operates at peak efficiency, lowering operational costs and contributing to the vessel’s overall sustainability.
Smart Energy Management for Maximum Efficiency
The vessel is also equipped with an advanced energy management system, designed to optimize power usage. This intelligent system ensures that energy is used efficiently, enhancing operational performance while keeping fuel consumption to a minimum.
Long-Term Service Life and Environmental Compliance
Ensuring Safe Passage in the River Tees
As the Statutory Harbour Authority (SHA), PD Ports is responsible for dredging and maintaining safe navigation routes along the 19-kilometre (12-mile) stretch from the River Tees to the Port of Hartlepool. The Emerald Duchess plays a crucial role in maintaining these waterways, ensuring vessels with drafts of up to 17 meters (56 feet) can navigate safely.
Sustainable Dredging Practices with Environmental Oversight
The Emerald Duchess follows a regulated process for removing sediment brought into the river by tidal action. This sediment is carefully discharged into designated offshore areas, a practice that is closely monitored by the Marine Management Organisation (MMO). This sustainable approach has been in place for over 50 years, ensuring that dredging operations remain environmentally responsible.
A £23 Million Investment for the Future
Replacing the Cleveland County with Superior Technology
The Emerald Duchess represents a £23 million (US$31 million) investment in the future of PD Ports’ dredging operations. With an expected service life of 40 years, this TSHD will replace the Cleveland County, the company’s current dredger. The Emerald Duchess is equipped to meet modern dredging demands while adhering to strict environmental standards, ensuring the safe and efficient maintenance of the River Tees for decades to come.
Conclusion: The Emerald Duchess – A New Era of Eco-Friendly Dredging
PD Ports’ acquisition of the Emerald Duchess marks a significant step forward in the use of low-emission dredging vessels in the UK. With its hybrid propulsion system, future-ready design, and sustainable dredging capabilities, the Emerald Duchess sets a new benchmark for environmental responsibility in the maritime industry.
This investment not only enhances PD Ports’ operational efficiency but also reaffirms its dedication to protecting the environment while maintaining vital waterway navigation routes.
Key Benefits of the Emerald Duchess:
- Hybrid propulsion system for operational flexibility
- Ready for future fuel cell technology
- Optimized hull design for reduced fuel consumption
- Smart energy management system for maximum efficiency
- Compliance with strict environmental regulations
By investing in the Emerald Duchess, PD Ports is ensuring that its dredging operations remain environmentally sustainable and operationally efficient for many years to come.