ABB Marine & Ports has signed a Memorandum of Understanding(MoU) with Maritime Partners LLC(MP), Elliott Bay Design Group(EBDG) and e1 Marine to develop a hydrogen-powered inland towboat for operation in the U.S.
The 27-meter towboat, Hydrogen One, designed to push barges along inland waterways, is intended for deployment on the vast 14,500-mile waterway network that extends from the Port of New Orleans, operating along the Mississippi River and its many tributaries.
Hydrogen One will be able to travel with a load for about four days at the speed of 6 miles per hour, covering approximately 550 miles before the need to refuel. The vessel’s propulsion system will be capable of generating up to 2,700 HP propulsion power, with 1,700 HP generated by fuel cell and the remaining 1,000 provided by the battery. The vessel will be operated by Maritime Partners, a New Orleans-based owner of close to 550 towboats, barges and other maritime assets.
The innovative towboat will convert methanol to hydrogen directly on board deploying a hydrogen generator by e1 Marine, which convert a mixture of methanol and water into fuel-cell grade high-purity hydrogen. Hydrogen generated by this process will be fed into the fuel cells to generate electricity.
Onboard hydrogen production will eliminate complexities typically associated with direct fueling and storage of hydrogen. This approach results in no particulate matter emissions and less than 80 percent CO2 emissions compared to an electrolyser solution using electrical power derived from fossil fuel sources. If methanol comes from a renewable energy source, the energy chain can be carbon-neutral.
Methanol is currently available as a bunker fuel at many terminals and is easy to handle and store. It can be transferred to the vessel in a manner similar to conventional fuels and does not need to be stored under pressure.
Towboats, tugs and other service vessels are increasingly coming under scrutiny for their alignment with environmental agendas. Traditional towboats operate with the main engines and generators engaged at all times, which often means poor utilization of onboard power and increases the fuel consumption. With an electric system, fuel cells and batteries can provide just the right amount of power exactly when it is needed.
Having pioneered the development of integrated power systems for a variety of ship types and marine fuels, ABB will provide the full electrical propulsion plant for the vessel, including electric motors, transformers, as well as the integration of fuel cells and batteries. ABB’s award-winning Onboard DC Grid™ power distribution system will ensure that the fuel cell and battery output is delivered to the towboat’s subsystems in the most optimal way. The overall power setup will be controlled by ABB's Power and Energy Management System(PEMS™), which will also increase fault tolerance and provide a high degree of reliability while ensuring the maximum lifetime for the batteries.
Fuel cells turn the chemical energy from hydrogen into electricity through an electrochemical reaction. The fuel cell technology is widely considered as one of the most promising solutions for supporting the shipping industry’s decarbonization agenda and meeting International Maritime Organization’s targets to reduce annual emissions by 30 percent by 2025.
New Orleans-based leasing company, Maritime Partners, is a frontrunner in the development of alternative marine fuels for workboats, while Elliott Bay Design Group is a leading firm of naval architects and marine engineers and e1 Marine is specialized in hydrogen generation.