Hennessy VII details 2.88 GW ONE Nuclear plan

Hennessy Capital Investment Corp. VII (HVII) released communication related to its proposed business combination with ONE Nuclear Energy LLC, highlighting ONE Nuclear’s planned Project Cayman in Louisiana.

Rhea-AI Filing Summary

Hennessy Capital Investment Corp. VII (HVII) released communication related to its proposed business combination with ONE Nuclear Energy LLC, highlighting ONE Nuclear’s planned Project Cayman in Louisiana. ONE Nuclear has signed a binding land agreement for a large energy site that is planned to host a 2.88‑gigawatt natural gas plant and a 700‑megawatt, 2.88‑gigawatt‑hour battery energy storage system, alongside a high‑capacity data center near Louisiana’s RiverPlex MegaPark and SpaceX’s announced expansion.

The project is presented as supporting industrial growth, data‑center demand, and regional grid reliability, with community outreach meetings planned from September through December 2026. The communication also contains extensive forward‑looking statement language describing uncertainties and risks around the closing of the business combination, regulatory approvals, capital needs, project development, competition, potential shareholder redemptions, and other factors that could cause actual results to differ materially from current expectations.

Key Figures

Natural gas plant capacity: 2.88 gigawatts Battery storage power rating: 700 megawatts Battery storage energy capacity: 2.88 gigawatt-hours +4 more

7 metrics

Natural gas plant capacity 2.88 gigawatts Planned capacity of Project Cayman natural gas plant

Battery storage power rating 700 megawatts Planned power rating of Project Cayman Battery Energy Storage System

Battery storage energy capacity 2.88 gigawatt-hours Planned energy capacity of Project Cayman Battery Energy Storage System

Community outreach window September–December 2026 Planned period for public information meetings on Project Cayman

Hyundai steel mill investment $5.8 billion Size of Hyundai’s steel mill cited as a regional development

Year of referenced Form 10-K 2025 Hennessy VII Annual Report on Form 10‑K for the year ended December 31, 2025

Business Combination Agreement date October 22, 2025 Date of Business Combination Agreement among Hennessy VII, Solis Merger Sub LLC, and ONE Nuclear

Key Terms

Battery Energy Storage System (BESS), Business Combination Agreement, registration statement on Form S-4, proxy statement/prospectus, +2 more

6 terms

Battery Energy Storage System (BESS) technical

"includes a 2.88 GW natural gas plant and a Battery Energy Storage System (BESS)"

A battery energy storage system (BESS) is a large-scale setup that stores electricity in rechargeable batteries and releases it when needed, like a giant rechargeable battery for the power grid. It matters to investors because it helps smooth out supply and demand, capture surplus renewable power, provide backup and short-term grid services that can earn recurring revenue, and can boost the value of generation and transmission assets as demand for flexible energy grows.

Business Combination Agreement regulatory

"could give rise to the termination of that certain Business Combination Agreement"

A business combination agreement is a detailed contract that lays out the terms for two companies to join together—covering price, how ownership will be split, the steps needed to close the deal, and what each side promises to do or avoid before closing. For investors it matters because the agreement determines potential changes in value, control, timing, and risk exposure—think of it like the playbook for a merger that shows who wins, who pays, and what could still derail the plan.

registration statement on Form S-4 regulatory

"including the registration statement on Form S-4, the proxy statement/prospectus"

A registration statement on Form S-4 is a formal filing with the U.S. Securities and Exchange Commission used when a company issues shares or other securities as part of a merger, acquisition, exchange offer or similar corporate deal. It bundles the transaction terms, financial statements, risk factors and shareholder vote materials so investors can assess the deal; think of it as a detailed prospectus or buyer’s packet that explains what you would own and how the deal could change your stake.

proxy statement/prospectus regulatory

"including the registration statement on Form S-4, the proxy statement/prospectus"

A proxy statement or prospectus is a document that companies send to shareholders to provide important information about upcoming decisions or investments, such as voting on company issues or offering new shares to the public. It helps investors understand the details and risks involved, enabling them to make informed choices about their ownership or involvement with the company.

forward-looking statements regulatory

"This press release contains forward-looking statements, including but not limited to"

Forward-looking statements are predictions or plans that companies share about what they expect to happen in the future, like estimating sales or profits. They matter because they help investors understand a company's outlook, but since they are based on guesses and assumptions, they can sometimes be wrong.

redemptions financial

"the level of redemptions by Hennessy VII shareholders in connection with the Business Combination"

Redemptions are the act of returning an investment to the issuer or fund in exchange for cash, such as when investors cash out shares in a mutual fund, preferred stock, or when a bond reaches maturity and is paid back. For investors this matters because redemptions change how much cash a company or fund must pay out and can shrink a fund’s size or pressure a company’s liquidity, affecting prices and future yield like many people trying to withdraw money from a single ATM at once.

FAQ

What project related to HVII’s merger partner ONE Nuclear is described in this Form 425?

The filing describes ONE Nuclear’s planned Project Cayman in Louisiana, featuring a 2.88 GW natural gas plant, a 700 MW, 2.88 GWh battery storage system, and a high‑capacity data center near RiverPlex MegaPark and SpaceX’s infrastructure expansion.

How does Project Cayman aim to support regional growth relevant to HVII?

Project Cayman is intended to provide 2.88 GW of power and large‑scale battery storage to support new factories and technology hubs, including developments like the SpaceX Starbase project and Hyundai’s $5.8 billion steel mill, and to improve reliability of the regional power grid.

What community outreach is planned for ONE Nuclear’s Project Cayman tied to HVII?

ONE Nuclear plans a series of public information meetings with local parishes, government agencies, and other stakeholders from September through December 2026, focusing on Project Cayman and its potential regional impact.

What major risks to the HVII–ONE Nuclear business combination are highlighted?

The communication lists risks including failure to complete the business combination, inability to obtain regulatory approvals, potential termination of the Business Combination Agreement, market risks, high shareholder redemptions, project development risks, and challenges raising additional capital.

What regulatory filings related to HVII’s business combination are referenced?

The text references Hennessy VII’s Annual Report on Form 10‑K for 2025 and other SEC filings, including a registration statement on Form S‑4 and a proxy statement/prospectus to be filed in connection with the business combination with ONE Nuclear.

Does the filing state that its statements about HVII and ONE Nuclear are forward-looking?

Yes. It states that all statements other than historical facts are forward‑looking statements, based on current expectations and assumptions, and may differ materially due to listed risks; neither ONE Nuclear nor Hennessy VII undertakes to update these statements except as required by law.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/09/2026 - 08:31 AM Accepted by SEC EDGAR 09/09/2026 - 08:30 AM Learn about SEC filing dates

Filed under Rule 425

under the Securities Act of 1933, as amended

and deemed filed under Rule 14a-12

of the Securities Exchange Act of 1934, as amended

Filing by: Hennessy Capital Investment Corp. VII

Subject Company: Hennessy Capital Investment Corp. VII

SEC File No.: 001-42479

On September 8, 2026, ONE Nuclear Energy LLC reposted a LinkedIn post of Tomorrow’s World Today:

The full text of the article linked in the foregoing LinkedIn post is set forth below:

Louisiana Secures Gas Plant Next to SpaceX Base

The new project in Louisiana includes a 2.88 GW natural gas plant and a Battery Energy Storage System (BESS).

ONE Nuclear Energy LLC signed a binding agreement with a local landowner group to secure the land for a significant new energy site called Project Cayman.

The project features a 2.88-gigawatt natural gas plant combined with a 700-megawatt, 2.88-gigawatt-hour battery storage system. The construction doesn’t stop there. A high-capacity data center is being built on the same campus.

The site sits near Louisiana’s RiverPlex MegaPark, just northeast of SpaceX’s recently announced infrastructure expansion. By bringing in new power generation and large-scale battery storage in areas with growing heavy industrial demand, they hope to make the entire regional grid much more reliable.

Powering a Data-Driven Area

As new factories and technology hubs move into Louisiana, the state needs a lot more electricity to keep up. ONE Nuclear wants to be the company providing that steady power.

“Project Cayman, with its 2.88 GW power capacity, demonstrates that ONE Nuclear is committed to supporting the future economic development of one of Louisiana’s most important industrial regions,” said Richard Taylor, CEO of ONE Nuclear. “The project will deliver the reliable energy needed to support new investment, create jobs, expand the local tax base and generate additional funding for community priorities and critical infrastructure.”

Large-scale industrial growth requires constant, dependable power. According to engineers, the facility is designed specifically to handle the heavy energy needs of modern, data-driven economies.

Scaling the Energy Infrastructure

Community outreach is already up and running. ONE Nuclear plans to hold a series of public information meetings with local parishes, government agencies, and other stakeholders from September through December 2026.

ONE Nuclear wants to keep building scalable energy infrastructure for the United States.

“ONE Nuclear is proud to invest in the region to support the rapidly growing energy needs created by other recently announced developments such as the SpaceX Starbase project and Hyundai’s $5.8 billion steel mill,” Taylor concluded.

Forward-Looking Statements

This press release contains forward-looking statements, including but not limited to statements regarding ONE Nuclear Energy LLC’s (“ONE Nuclear”) and Hennessy Capital Investment Corp. VII’s (“Hennessy VII”) expectations, beliefs, intentions, strategies, and projections. All statements other than statements of historical facts contained in this press release are forward-looking statements. These statements are based on current expectations and assumptions and are subject to risks and uncertainties that could cause actual results to differ materially. Words such as “anticipate,” “believe,” “expect,” “intend,” “may,” “plan,” “project,” “should,” “will,” and similar expressions are intended to identify forward-looking statements, though not all forward-looking statements contain these identifying words, and the absence of these words does not mean that a statement is not forward-looking. Forward-looking statements include, without limitation, the anticipated timing of and benefits from the consummation of the Business Combination, ONE Nuclear’s management team’s expectations concerning the outlook for its business, productivity, plans, growth and capital investments, operational and cost performance, revenue generation, development timelines, potential generation capacities of specific sites, regulatory outlook, future market conditions, success of strategic relationships, developments in the capital and credit markets, expected future financial performance, as well as demand for nuclear energy and the economic outlook for the nuclear energy industry.

Forward-looking statements speak only as of the date of this press release and are based on ONE Nuclear’s and Hennessy VII’s current beliefs and assumptions. ONE Nuclear and Hennessy VII undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise, except as required by law. Actual results may differ materially due to various risks and uncertainties, including but not limited to: (1) the risk that the Business Combination may not be completed in a timely manner or at all, which may adversely affect the price of Hennessy VII’s securities; (2) the failure to satisfy the conditions to the consummation of the Business Combination, including the receipt of certain regulatory approvals; (3) market risks; (4) the occurrence of any event, change or other circumstance that could give rise to the termination of that certain Business Combination Agreement, dated as of October 22, 2025 (as may be amended, supplemented or otherwise modified from time to time, the “Business Combination Agreement”), by and among Hennessy VII, Solis Merger Sub LLC, a Delaware limited liability company and a direct wholly-owned subsidiary of Hennessy VII, and ONE Nuclear; (5) changes in the transaction structure of the Business Combination due to regulatory or legal requirements; (6) the ability to meet listing standards; (7) the effect of the announcement or pendency of the Business Combination on ONE Nuclear’s business relationships, performance, and business generally; (8) failure to realize anticipated benefits from the Business Combination; (9) the outcome of any legal proceedings that may be instituted against ONE Nuclear or Hennessy VII related to the Business Combination or the Business Combination Agreement; (10) ONE Nuclear’s ability to execute on its business plan and to develop and maintain key strategic relationships and enter into definitive agreements in connection therewith; (11) competition in ONE Nuclear’s industry; (12) transaction-related costs; (13) the risk that changes in laws or regulations adversely affect ONE Nuclear’s business plans and operations; (14) adverse economic or competitive conditions; (15) the level of redemptions by Hennessy VII shareholders in connection with the Business Combination; (16) the risk that ONE Nuclear may not be able to successfully develop its exclusive sites or other sites and the commercial viability of any such site; (17) the risk that ONE Nuclear will be unable to raise additional capital to execute its business plan, which may not be available on acceptable terms or at all; and (18) other risks and uncertainties described in Hennessy VII’s Annual Report on Form 10-K for the year ended December 31, 2025, which was filed with the SEC on March 6, 2026, and other filings with the SEC, including the registration statement on Form S-4, the proxy statement/prospectus and other relevant materials filed with the SEC in connection with the Business Combination from time to time. The foregoing list is not exhaustive, and there may be additional risks that neither Hennessy VII nor ONE Nuclear presently knows or that Hennessy VII and ONE Nuclear currently believe are immaterial. ONE Nuclear and Hennessy VII caution you against placing undue reliance on forward-looking statements, which reflect current beliefs and are based on information currently available as of the date a forward-looking statement is made.