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SOO GREEN HVDC LINK AND ONE NUCLEAR SIGN LETTER OF INTENT TO EXPLORE DELIVERING FIRM NUCLEAR ENERGY AND CAPACITY TO PJM

ONE Nuclear's planned Iowa project targets up to 1,000 MW, while future commercial arrangements remain subject to definitive agreements.

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ONE Nuclear Energy (ONEN) and SOO Green HVDC Link signed a letter of intent to explore supplying nuclear power to PJM. The framework would explore access to SOO Green's planned 2,100-megawatt underground high-voltage direct-current transmission line. ONE Nuclear's planned Iowa project, with a development target of up to 1,000 MW, was selected for inclusion among supply options for prospective transmission customers.

Future commercial arrangements require definitive agreements and applicable development, regulatory and financing requirements. The letter includes certain nuclear-development exclusivity provisions. SOO Green anticipates completing permitting by year-end; construction could begin as early as 2028, with commercial operations targeted for 2032. The projects remain separate and independent.

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2 points · 0 major

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Rhea-AI gives every point it takes from this document a weight. Minor counts 1, Moderate 3 and Major 9, so one Major point outweighs several Minor ones. The bar adds up the weights on each side, and when neither side holds more than 65% of the total the balance reads Mixed.

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0 major · 2 points

Hollow bars mark forward-looking points. How the balance works

Positive

  • Moderate pointSigned letter of intent establishes collaboration with SOO Green on potential nuclear generation and transmission opportunities.
  • Minor point. Forward-looking: it has not happened yet and may not happen.Planned Iowa project selected for SOO Green's prospective customer supply options, targeting development of up to 1,000 MW.

Negative

  • Moderate point. Forward-looking: it has not happened yet and may not happen.Future commercial arrangements require negotiated, executed definitive agreements and applicable development, regulatory and financing requirements.
  • Minor pointExclusivity provisions apply to certain nuclear generation development under the letter of intent.

News Explained

The LOI includes certain exclusivity provisions relating to nuclear generation development, while SOO Green says it will continue operating the transmission facility as open access for a broad range of generation resources and offtakers.

Key Figures

Transmission line capacity: 2,100 megawatts Project development target: Up to 1,000 MW Line length: 350 miles +2 more
Transmission line capacity
2,100 megawatts
SOO Green underground HVDC line
Project development target
Up to 1,000 MW
ONE Nuclear Project
Line length
350 miles
SOO Green underground line
Construction timing
As early as 2028
Potential start of construction
Commercial operations target
2032
SOO Green project

Key Terms

hvdc
1 terms
hvdc technical
"High Voltage Direct Current (HVDC) transmission line"
HVDC, short for high‑voltage direct current, is a way of transmitting electricity as a steady one‑direction flow over long distances or undersea links instead of the usual back‑and‑forth alternating current. Like a high‑speed, nonstop pipeline for power, it cuts energy loss and can link different power grids or distant renewable sites more efficiently. Investors watch HVDC projects because they are large, long‑lived infrastructure investments that affect utility revenue, grid capacity, construction and regulatory risk, and the economics of power supply.

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Agreement Highlights SOO Green as a Technology-Neutral Interregional Transmission Backbone Built in Existing Right-of-Way

CHICAGO, Nov. 5, 2026 /PRNewswire/ -- SOO Green HVDC Link (SOO Green) and ONE Nuclear Energy Inc. (Nasdaq: ONEN) today announced the signing of a Letter of Intent (LOI) to work together to explore the potential for sourcing nuclear energy and capacity into the PJM Interconnection via SOO Green's 2,100-megawatt underground High Voltage Direct Current (HVDC) transmission line.

SOOG

The LOI establishes a framework for the parties to collaborate on potential nuclear generation and transmission opportunities, with any future commercial arrangements subject to the negotiation and execution of definitive agreements and applicable development, regulatory and financing requirements.

The agreement reflects the companies' view that the nation's next generation of firm, around-the-clock power – including advanced nuclear – will need high-capacity transmission to reach the markets where demand is growing fastest. SOO Green, which anticipates completing its permitting by the end of this year, is a leading interregional candidate to provide that backbone, using existing rail right-of-way to connect the MISO and PJM grids.

Building high-voltage transmission in existing corridors has drawn bipartisan support as a way to drive economic growth, lower costs for ratepayers and strengthen the security of the nation's energy supply. Federal permitting legislation now advancing in Congress prioritizes HVDC lines above 345 kV sited in existing rights-of-way – precisely the model SOO Green was designed around.

"America needs a transmission backbone that can carry every kind of reliable power to where it's needed, and SOO Green was built to be that kind of infrastructure," said David Pacyna, CEO of SOO Green. "Our work with ONE Nuclear demonstrates the range of serious, firm supply options that a fully permitted, interregional HVDC line can unlock for PJM customers. As an open-access line, SOO Green is designed to serve a broad portfolio of resources – and to deliver lower costs and greater reliability for the families and businesses that depend on them."

"We are pleased that SOO Green has selected ONE Nuclear's planned Iowa project for inclusion in its menu of power supply options for prospective transmission customers," said Coen Weddepohl, Chief Investment Officer of ONE Nuclear. "With a development target of up to 1,000 MW, we believe the ONE Nuclear Project will bring a substantial new source of firm, dispatchable, carbon-free power to Illinois and the wider PJM market."

A December 2025 resource adequacy report from Illinois agencies warns of potential power shortfalls beginning in northern Illinois by 2029 and statewide by 2031 if action is not taken. Rising demand from data centers and industrial electrification, combined with generator retirements, is pushing PJM capacity prices sharply higher, with projected prices reaching $732/MW-day in 2033 and $872/MW-day in 2034 – costs borne directly by consumers.
SOO Green adds 2,100 MW of controllable transfer capability directly into the ComEd service territory in northern Illinois, where the earliest shortfall risk is projected. Unlike conventional AC lines, HVDC power flows can be scheduled and directed by the grid operator, and SOO Green's converter technology can provide grid-support services such as voltage support during stressed conditions.

Under the LOI, which includes certain exclusivity provisions relating to nuclear generation development, SOO Green and ONE Nuclear will explore pathways for future nuclear generation to access transmission capacity on SOO Green to serve PJM. SOO Green and ONE Nuclear remain separate and independent projects, and SOO Green will continue to operate as an open-access transmission facility available to a broad range of generation resources and offtakers.

The 350-mile underground line will connect Mason City, Iowa, to Yorkville, Illinois, running primarily along existing Canadian Pacific Railway corridors – avoiding new overhead corridors and the use of eminent domain. Construction could begin as early as 2028, with commercial operations targeted for 2032. The project is expected to boost the regional economy by $3.2 billion during construction and support thousands of skilled union jobs, with Siemens Energy, Jingoli Power, PPL Corporation and Prysmian Group as project partners.

About SOO Green
SOO Green is a 2,100-megawatt HVDC underground transmission project being developed by energyRe and Copenhagen Infrastructure Partners (CIP). The 350-mile line will connect Mason City, Iowa, to Yorkville, Illinois, along existing railway right-of-way, interconnecting the MISO and PJM markets and delivering affordable, reliable power to approximately 1.5 million Illinois homes. The project is partnered with Siemens Energy, Jingoli Power, PPL Corporation and Prysmian Group. To learn more, visit www.soogreen.com.

About ONE Nuclear
ONE Nuclear Energy Inc. (Nasdaq: ONEN) is an independent developer, owner and operator of large-scale energy projects powered by natural gas and advanced nuclear technologies. Its projects aim to deliver reliable power and energy solutions for variable load, strengthen energy security, and support American digital and industrial growth. Learn more at www.onenuclearenergy.com.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of applicable securities laws, including statements regarding the proposed collaboration between ONE Nuclear and SOO Green, potential nuclear generation capacity, project development, permitting, financing, transmission availability, anticipated commercial operations and expected benefits. These statements are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied. The contemplated commercial arrangements remain subject to further diligence, definitive agreements, financing, regulatory approvals, licensing, transmission and interconnection arrangements, and other conditions. There can be no assurance that definitive agreements will be executed or that the proposed projects will proceed as anticipated. ONE Nuclear undertakes no obligation to update these statements except as required by law.

Cision View original content to download multimedia:https://www.prnewswire.com/news-releases/soo-green-hvdc-link-and-one-nuclear-sign-letter-of-intent-to-explore-delivering-firm-nuclear-energy-and-capacity-to-pjm-302930866.html

SOURCE energyRe

FAQ

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What does ONE Nuclear's agreement with SOO Green cover?

The letter of intent establishes a framework to explore sourcing nuclear energy and capacity into PJM through SOO Green's planned 2,100-megawatt transmission line. Future commercial arrangements remain subject to definitive agreements and applicable development, regulatory and financing requirements.

Will ONE Nuclear and SOO Green become a single project?

ONE Nuclear and SOO Green remain separate and independent projects. SOO Green will continue as an open-access transmission facility available to a broad range of generation resources and power purchasers.

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