Floating Nuclear Power Plants Slated for Southern California Coast

Long Beach is exploring a plan to deploy a fleet of miniature nuclear reactors on floating barges to provide clean energy and stabilize the local power grid.

As California grapples with recurring power grid failures and rising electricity demands, a novel energy solution is floating into view off the coast of Southern California. The Port of Long Beach is exploring a pioneering partnership to deploy small modular nuclear reactors on barges, a move that could reshape how coastal cities secure clean, reliable energy. If successful, this project would mark California's first new nuclear energy initiative in nearly half a century, highlighting a growing willingness to reconsider nuclear power in the face of climate goals and energy shortages.

WHAT HAPPENED

The Port of Long Beach has entered into a cooperative agreement to explore the deployment of small modular reactors (SMRs) on floating barges off the Southern California coast. The project is being spearheaded by Bluecore Energy, a startup headquartered inside the port at Berth 48. Founded by entrepreneur Kofi Asante, Bluecore Energy is developing light water-cooled reactors designed specifically for maritime and shoreside applications.

Under the plan, these compact nuclear reactors would be built on 185-foot barges. The initial 10-megawatt electric (MWe) system is designed to generate enough electricity to power approximately 15,000 homes. By placing the reactors on floating platforms, the project aims to deliver zero-emissions energy directly to port operations, terminals, and cargo ships without taking up valuable coastal land.

To pave the way for this technology, the Port of Long Beach signed a first-of-its-kind Memorandum of Cooperation with the Federal Maritime Administration (MARAD) in July 2026. This agreement establishes a framework for MARAD, the U.S. Coast Guard, the Department of Energy, and the Nuclear Regulatory Commission to collaborate on safety standards, inspection protocols, and operational rules for maritime nuclear power.

Key Facts

• The Technology: Small modular reactors (SMRs) mounted on 185-foot floating barges.
• Power Capacity: An initial 10-MWe reactor capable of powering 15,000 homes, with the ability to combine multiple units.
• The Partnership: A joint effort between the Port of Long Beach, startup Bluecore Energy, and the Federal Maritime Administration (MARAD).
• The Timeline: Bluecore Energy secured capital funding in early 2026 and has already delivered an electric test reactor to its port headquarters.
• The Goal: To help the Port of Long Beach achieve its target of becoming the world's first zero-emissions port by 2050.

WHY IT MATTERS

This project represents a dramatic shift in California’s energy landscape. For decades, the state has moved away from nuclear energy, but recurring power grid failures, the rise of energy-intensive artificial intelligence data centers, and aggressive climate mandates are forcing a reassessment. Proponents argue that floating nuclear plants offer a highly flexible, land-free solution to shore up California’s fragile electrical grid.

However, the proposal has drawn sharp criticism from environmental groups and local skeptics. Opponents raise serious concerns about ocean safety, potential seismic risks in earthquake-prone Southern California, and the unresolved challenge of processing and storing radioactive nuclear waste. While Bluecore Energy emphasizes that the reactors are designed with multiple physical barriers, passive safety features, and water-based cooling, convincing a wary public remains a steep hurdle.

WHAT HAPPENS NEXT

Bluecore Energy is currently testing components of its electric test reactor at Berth 48 while navigating a complex web of engineering, regulatory, and classification requirements. The company and port officials will continue working with federal regulators to draft robust safety and oversight rules. Public engagement sessions are expected to be scheduled to address community concerns regarding safety and environmental impacts. If the technology receives regulatory approval, the port hopes to eventually scale the project to power commercial vessel propulsion and supply electricity to the broader regional grid.

WHAT WE STILL DON'T KNOW

1. How will federal regulators address the specific seismic and tsunami risks associated with operating floating nuclear reactors off the active Southern California coastline?
2. What concrete plans will be established for the safe handling, transport, and long-term storage of the nuclear waste generated by these barge-mounted reactors?
3. What is the estimated timeline and total cost for the project to transition from the current testing phase to full commercial deployment?

SOURCE NOTE

This story draws on reporting from the New York Post.