Zero-Carbon Maritime Push: Hanwha Power Wins ABS Approval for Battery Containership as Seatrium Secures Powership Contract

## Zero-Carbon Maritime Push: Hanwha Power Wins ABS Approval for Battery Containership as Seatrium Secures Powership Contract Two significant developments in marine energy technology emerged this week, underscoring the industry's accelerating shift toward low- and zero-emission power solutions across vessel segments. ### Hanwha Power's 1,700 TEU Battery Containership Clears ABS Review Hanwha Power has received Approval in Principle (AiP) from the American Bureau of Shipping (ABS) for its fully electric, battery-powered containership design rated at 1,700 TEU, according to a PR Newswire release. The vessel concept centres on an integrated propulsion architecture featuring approximately 151 MWh of containerised battery energy storage — a capacity that positions it among the most energy-dense all-electric commercial ship designs proposed to date. The AiP milestone, a formal validation that a design meets classification society safety and technical standards at the concept stage, is a critical step toward commercial realisation. For Hanwha Power, the certification strengthens its credentials in the growing zero-carbon maritime transport sector and demonstrates the viability of combining electric propulsion systems with modular, containerised battery storage at meaningful commercial scale. The 1,700 TEU size class is well-suited to short-sea and regional feeder trades — routes where voyage distances make full battery propulsion operationally practical and where port emission regulations are increasingly stringent. If brought to market, the design could offer operators a credible zero-emission alternative on intra-regional corridors in Europe, Asia, and North America. ### Seatrium and Karpowership Expand Whale Class Powership Programme In a separate development, Singapore-based Seatrium Limited and floating power specialist Karpowership have signed a contract covering the development, major conversion, and systems integration of Karpowership's third-generation 'Whale Class' powerships, PR Newswire reported on 23 October 2026. The agreement extends a longstanding strategic partnership between the two companies. Whale Class powerships represent Karpowership's latest generation of floating power plants, designed to deliver grid-scale electricity generation to coastal and island markets — particularly in regions where land-based infrastructure is limited or unreliable. Seatrium, which operates one of Asia's leading ship repair and conversion yards, brings substantial offshore and marine engineering expertise to the programme. The contract encompasses a series of conversion and integration projects, reflecting confidence in sustained demand for floating power solutions across emerging markets in Africa, the Middle East, and Southeast Asia. ### Industry Context Taken together, both announcements reflect the breadth of innovation now underway in marine energy — from purpose-built zero-emission vessels targeting decarbonisation goals, to floating power infrastructure addressing energy access challenges. As regulatory pressure mounts globally and shipowners face increasingly firm emissions timelines, investment in alternative propulsion and energy systems is moving from pilot projects toward commercial-scale deployment.