ABB and Blykalla just took a major step toward bringing nuclear power to the maritime industry. Their new memorandum of understanding (MoU) aims to accelerate the deployment of small modular reactors (SMRs), particularly lead-cooled designs, as a shipboard power source. This isn’t just another corporate handshake—it’s a strategic pivot that could reshape the future of maritime decarbonisation.
The agreement builds on an existing MoU between the two companies, signed last October, which focused on developing lead-cooled SMR technology to support Sweden’s clean energy needs. But this time, the scope is broader: maritime applications. And the timing couldn’t be better. The International Maritime Organization (IMO) just approved recommendations to update the Code of Safety for Nuclear Merchant Ships, reflecting advances in nuclear technology—including SMRs—since the original code was introduced.
Blykalla’s Swedish Advanced Lead Reactor (SEALER) is at the heart of this collaboration. It’s a compact, passively safe reactor with inherent safety features that don’t require operator intervention. The NuProShip I project, which aims to adapt a Generation IV SMR for maritime use, identified SEALER as one of three promising reactor designs—particularly for larger vessels.
ABB brings its expertise in system integration, power distribution, control, and automation to the table. This isn’t just about slapping a reactor onto a ship; it’s about integrating it seamlessly into the vessel’s operations. ABB’s role will be crucial in ensuring the SMR functions as a reliable, efficient, and safe shipboard power source.
“We’re pleased to extend our partnership with ABB into this strategically important vertical,” said Jacob Stedman, CEO at Blykalla. “With our compact reactor design, we see a unique opportunity to lead the way in maritime nuclear propulsion—a solution uniquely positioned to meet the sector’s demand for clean energy.”
This isn’t just about technology; it’s about building an ecosystem. Stedman’s point about the need for committed partners hits the nail on the head. The maritime industry is complex, and deploying SMRs at scale will require collaboration across the board—from regulators and shipowners to fuel suppliers and classification societies.
Juha Koskela, President of ABB’s Marine & Ports division, echoed this sentiment. “SMRs hold significant potential to drive decarbonization, and our collaboration with Blykalla will help to advance their viability in maritime applications,” he said. “Next-generation SMRs will enable innovative ship designs that can help to reduce emissions compared to vessels powered by carbon-based fuels. We are proud to partner with Blykalla on what represents an important step on shipping’s decarbonization journey.”
This partnership is a clear signal that nuclear power is back on the table for maritime propulsion. For years, the industry has been grappling with how to meet increasingly stringent emissions targets. While alternative fuels like ammonia, hydrogen, and LNG have garnered significant attention, nuclear has often been sidelined due to safety concerns, regulatory hurdles, and public perception.
But the tide is turning. The IMO’s recent move to update safety codes for nuclear-powered ships is a clear indication that regulators are taking nuclear seriously again. And with advancements in SMR technology—particularly in safety and compactness—nuclear power is becoming a viable option for shipowners looking to future-proof their fleets.
The potential impact of this collaboration extends beyond just ABB and Blykalla. If successful, it could pave the way for other companies to explore nuclear propulsion, creating a ripple effect across the industry. It could also spur further regulatory developments, making it easier for shipowners to adopt nuclear technology.
Of course, challenges remain. Public acceptance, regulatory frameworks, and the high upfront costs of nuclear technology are all hurdles that need to be overcome. But with industry heavyweights like ABB and Blykalla throwing their weight behind the technology, the maritime sector is one step closer to a nuclear-powered future.
This partnership is more than just a business deal—it’s a bet on the future of maritime decarbonisation. And if it pays off, it could be a game-changer for an industry under pressure to clean up its act.