The archive · Space, Robots, Defence · Strategic decision · 2025-2026
Bluecore Energy bets floating SMR barges power ports; $10M pre-seed, first barge delivered
Ex-Uber Freight founder Kofi Asante builds water-cooled SMRs on barges to power ports and data centers; $10M pre-seed led by Slauson, first barge delivered.
Bluecore Energy
What the business is
Bluecore Energy builds compact water-cooled small modular reactors on floating barges, initially a 10 MWe unit, to supply clean power to ports, communities, and data centers via subsea cables.
Starting capital：$10M pre-seed led by Slauson & Co.
How it started
Kofi Asante, a former Uber Freight employee, founded Bluecore Energy about seven months before its July 2026 launch, headquartered at the Port of Long Beach. His bet: AI-driven power demand is outrunning the grid, so the fastest path is moving generation to the load by sea rather than building new transmission.
What happened
Bluecore raised a $10M pre-seed led by Slauson & Co. with Harlem Capital, Precursor Ventures, Visible Hands, LMNT, Ripple co-founder Chris Larsen, and Kevin Hart's HartBeat Ventures. It secured a port terminal, barge, and test reactor pressure vessel, then delivered its first barge and an electric test reactor to the Port of Long Beach in July 2026 and began component testing while working through engineering, regulatory, and classification requirements.
No ending yet — it is still running.
Background
Bluecore Energy is a Long Beach-based startup betting that the clean-energy delivery problem is location, not generation. It is building water-cooled small modular reactors on floating barges - an initial 10 MWe system able to power roughly 15,000 homes or a major port - that can be towed to demand and connected to coastal grids by subsea cables.
Founder and CEO Kofi Asante came from Uber Freight, not nuclear engineering, and his argument is that the hard part was solved decades ago: water-cooled reactor technology has operated safely for over 70 years, so the startup's job is packaging it for the sea and licensing it for commercial use. The reactor design leans on multiple barriers, passive safety features, and water-based cooling.
The bet is timed to AI data-center buildout: Asante says data-center executives told him they would not need to pull power or water from surrounding communities if they could receive their own electricity at sea. Ports electrifying cargo equipment are the first target, with commercial vessel propulsion later.
As of September 2026 the company is in early development. It raised a $10M pre-seed led by Slauson & Co., delivered its first barge and an electric test reactor to the Port of Long Beach in July 2026, and is testing components while working through engineering, regulatory, and classification requirements. No operating reactor or revenue has been announced.
What has to be true
- AI data centers and port electrification create concentrated demand that the grid cannot deliver fast enough.
- Water-cooled reactor tech has over 70 years of operating history; the innovation is packaging it on a barge.
- Locating at the Port of Long Beach gives the startup a real customer context and a regulatory starting point from day one.
- The barge is itself the distribution channel: tow it to demand, connect by subsea cable, refuel every few years.
What can be applied
When grid buildout is slow and demand is concentrated, the wedge is mobility: ship proven generation technology to the customer instead of waiting for transmission infrastructure to catch up.
Aftermath
As of 2026-09-02 Bluecore Energy is in early development: it has delivered its first barge and an electric test reactor to the Port of Long Beach and is testing components while working through engineering, regulatory, and classification requirements for its 10 MWe system. No operating reactor or revenue has been announced; the company is pursuing partnerships, hires, and further development toward commercialization.
Sources
- Bluecore Energy raises $10M to build portable nuclear reactors on barges
- Bluecore Energy developing nuclear power barge at Port of Long Beach
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