As tighter environmental regulations emphasize the need for innovative technology in the maritime sector, Foreship’s containerized battery energy storage system offers an efficient, reliable and cost-effective solution for sustainable inland and coastal operations .
In response to the growing carbon footprint of the European transport sector, which now constitutes almost a quarter of the continent’s greenhouse gas emissions, the European Commission recently proposed a “Fit for 55” package aimed at a net reduction 55% emissions by 2030 compared to 1990 levels. To help the sector meet this target, the proposal includes an extension of the European Union Emissions Trading System (EU ETS) to integrate maritime transport.
The inclusion of the shipping industry in the EU ETS provides shipping companies with an additional incentive to reduce emissions by adopting environmentally friendly technology, a promising example of which is battery power. Yet although batteries are recognized as a catalyst for sustainable inland and coastal navigation operations, their widespread adoption is hampered by electrical integration systems and costs.
To make battery power more accessible to shipowners, the industry needs innovative solutions. Foreship’s containerized battery energy storage system maximizes the energy content in the fixed footprint of a 20-foot equivalent-sized structure. Known as E-House, this facility meets all regulatory requirements in terms of structural integrity and fire safety. It is permanently welded to the ship as an extension of its infrastructure and is usually connected to existing cooling, electrical, machinery and fire safety systems.
Although the configuration can be configured to provide either AC or DC output, Foreship studies reveal that DC voltage is the preferred option because it maximizes the energy density of the same E-House and, thanks to the limited number of main components. , minimizes the occurrence of faults. It is also adaptable to different power levels and offers a lower build cost per kilowatt hour than its AC counterpart.
Another key consideration for a containerized battery energy storage system is how the battery itself draws energy from the grid. Typically this would be done via a shore charge, but it takes time. The EU-funded Current Direct project explores an alternative: swapping the E-House when the batteries are empty. The target time, as also defined by the EU-funded Current Direct project, for this exchange is only five minutes, which significantly reduces the wearing time; and by eliminating the need for shore connection infrastructure, the method minimizes capital expenditure. Foreship therefore sees “tradable” electronic homes as a viable way to reduce marine emissions – and one that will accelerate the electrification of river traffic.
The company’s research on these systems as part of the EU-funded Current Direct project, which focused on container ships operating on inland waterways, found that ships fitted with three E-Houses traveled an average distance. 80 km between exchanges, while those equipped with four The E-Houses could travel 100 km. During this time, ships sailing downstream traveled an average of 120 km between exchanges with three E-Houses and 150 km with four. Foreship also noted that the number of electronic houses required per vessel varied depending on vessel type, size, and power demand.
As a leading naval architecture and marine engineering company, Foreship has over a decade of experience in sizing and designing battery systems on board existing ships and new builds. He is an expert in energy storage, fuel cells and alternative fuels, with more than 2,000 projects that make up his extensive list of references.
About the Author: Jan-Erik Räsänen is currently CTO at Foreship Ltd. He is responsible for the global technology team which consists of experts in 7 offices. A well-known expert in ship energy, Mr. Räsänen specializes in the management / reduction of energy consumption on board ships and thus in the minimization of emissions from ship power plants. Based in Helsinki, Mr. Räsänen’s role consists in particular of supporting shipowners in the implementation of energy saving solutions already developed by Foreship, such as with ALS (air lubrication system). Drawing on a career in energy efficiency and retrofits, he has extensive knowledge of the application of alternative fuels, including hybrid, battery and fuel cell energy efficient technologies in marine transportation, an expertise for which it is widely known in the maritime sector.
Source: Article by Jan-Erik Räsänen, CTO at Foreship Ltd.