Solaris Energy Infrastructure Announces the Acquisition of HVMVLV, a Specialty Provider of Power Control and Distribution Solutions

Solaris Energy Infrastructure, Inc. (NYSE:SEI) ("Solaris" or the "Company"), today announced the acquisition of HVMVLV, LLC ("HVMVLV"), a specialty provider of complex and fast-turnaround electrical control and distribution equipment along with associated technical design and engineering services. HVMVLV is one of Solaris' strategic partners and was acquired from existing management, who will remain with the Solaris team and provide significant technical expertise as the Company advances its Power-as-a-Service strategy.

Transaction Highlights and Strategy

• Strengthens Solaris' Power-as-a-Service Offering. Internalizes key capabilities related to the distribution and voltage regulation of complex and mission-critical power loads. These capabilities expand Solaris' portfolio and deliver customers a comprehensive turnkey solution designed to accelerate deployment and time to power.

• Exposure to New, High-Growth End Markets. HVMVLV's solutions are used across a broad range of industries, including hospitality, healthcare, data centers, utilities, and energy.

• Power Source Agnostic Solutions. Balance-of-plant solutions are essential across all electricity use cases, regardless of generation source, significantly expanding Solaris' total addressable market.

• Complementary Team. HVMVLV is led by industry veterans who bring years of partnership with the Solaris Power Solutions team and provide immediate depth to Solaris' bench of technical talent.

CEO Commentary

"We're excited to welcome and integrate the HVMVLV team to Solaris," commented Bill Zartler, Solaris' Chairman and Chief Executive Officer. "We believe this acquisition enhances our existing offering, strategically positions us to enter new end markets, and accelerates cross-selling opportunities for Solaris' Power-as-a-Service offering."

About Solaris Energy Infrastructure, Inc.

Solaris Energy Infrastructure, Inc. (NYSE:SEI) provides mobile and scalable equipment-based solutions for use in distributed power generation as well as the management of raw materials used in the completion of oil and natural gas wells. Headquartered in Houston, Texas, Solaris serves multiple U.S. end markets, including energy, data centers, and other commercial and industrial sectors. Additional information is available on our website, solaris-energy.com.

Forward Looking Statements

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Examples of forward-looking statements include, but are not limited to, our business strategy, our industry, our future profitability, the benefits of the transaction with HVMVLV and our future financial performance following the transaction, plans with respect to retention of key management of HVMVLV, the anticipated growth of our power fleet and sources of financing thereafter, our future business and financial performance and our results of operations, and the other risks discussed in Part I, Item 1A. "Risk Factors" in our Annual Report on Form 10-K for the year ended December 31, 2024 filed with the US Securities Exchange Commission (the "SEC") on March 5, 2025, Part II, Item 1A. "Risk Factors" in our Quarterly Report on Form 10-Q for the quarter ended March 31, 2025 filed with the SEC on May 7, 2025 and Part II. Item 1A. "Risk Factors" in our Quarterly Report on Form 10-Q for the quarter ended June 30, 2025 filed with the SEC on August 1, 2025. Forward-looking statements are based on our current expectations and assumptions regarding our business, the economy and other future conditions. Because forward-looking statements relate to the future, by their nature, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict. As a result, our actual results may differ materially from those contemplated by the forward-looking statements. Factors that could cause our actual results to differ materially from the results contemplated by such forward-looking statements include, but are not limited to the factors discussed or referenced in our filings made from time to time with the SEC. Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date hereof. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

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Yvonne Fletcher

Senior Vice President, Finance and Investor Relations

(281) 501-3070

[email protected]