EIG Holds Initial Closing of Fund Focused on Geothermal Power Projects

EIG, a leading institutional investor in the global energy and infrastructure sectors, today announced the initial closing of EIG Geothermal Catalyst Partners (the “Fund”), a dedicated investment vehicle focused on making investments to support the development of next-generation geothermal projects in the United States.

The Fund is designed primarily to provide mid-stage development capital to help advance geothermal projects through key technical and commercial milestones. By supporting projects at a critical stage of development, the Fund aims to help de-risk opportunities and enable broader institutional participation in the geothermal sector over time, while pursuing attractive, risk‑adjusted investment returns consistent with EIG’s disciplined investment approach.

The Fund reflects EIG’s longstanding experience investing across the energy value chain, including power generation and subsurface-intensive assets, and its view that geothermal can play an increasingly important role in delivering firm, reliable and low-carbon power as global electricity demand continues to grow. EIG believes the sector is entering a new era, driven by technological innovation and improved project economics.

“We believe geothermal represents a compelling opportunity that has the potential to deliver scalable, reliable and low-carbon power using many of the same subsurface capabilities that have underpinned decades of energy development,” said Andrew Ellenbogen, President of EIG. “With EIG Geothermal Catalyst Partners, EIG seeks to apply its technical expertise and investment experience to help advance high-quality geothermal projects at an important stage in their development.”

R. Blair Thomas, EIG’s Chief Executive Officer, added: “EIG has a long history of investing across the energy value chain, including technologies that support the energy transition while maintaining reliability and affordability. The closing of EIG Geothermal Catalyst Partners reflects our conviction in geothermal’s long-term potential and our commitment to supporting innovative energy solutions that we believe can help meet growing global power demand.”

For additional information regarding EIG Geothermal Catalyst Partners, please contact EIG at investorrelations@eigpartners.com.

This press release is for informational purposes only. This does not constitute an offer to sell or the solicitation of an offer to purchase securities. Any offering will be made only in accordance with applicable securities laws to eligible investors pursuant to confidential offering materials.

EIG Geothermal Catalyst Partners constitutes an alternative investment fund as defined in Regulation 3 of the United Kingdom’s Alternative Investment Fund Managers Regulations 2013 (the “AIFM Regulations”) and a collective investment scheme as defined in Part XVII of the United Kingdom Financial Services and Markets Act 2000, as amended (the “FSMA”). The Fund may only be marketed in the United Kingdom in accordance with Regulation 59 of the AIFM Regulations. The Fund has not been authorized, recognized or otherwise approved by the Financial Conduct Authority (the “FCA”) in accordance with the FSMA and, as an unregulated scheme, the fund cannot be promoted to the general public.

This press release is being communicated only to, and is directed only at, persons in the United Kingdom who are professional investors (as defined in the AIFM Regulations) and are: (1) investment professionals, as defined in Article 19(5) of the Financial Services and Markets Act (Financial Promotion) Order 2005 (the FPO”); (2) high net worth companies, unincorporated associations etc., as defined in Article 49(2)(A) to (D) of the FPO; or (3) persons to whom it may otherwise lawfully be communicated (all such persons together being referred to as “Relevant Persons”). This press release must not be acted on or relied on by persons in the United Kingdom who are not Relevant Persons. In the United Kingdom, any investment or investment activity to which this press release relates is available only to Relevant Persons and will be engaged in only with Relevant Persons.

About EIG

EIG is a leading institutional investor in the global energy and infrastructure sectors with $25.4 billion assets under management as of December 31, 2025. EIG specializes in private investments in energy and energy-related infrastructure on a global basis. During its 43-year history, EIG has committed over $53.4 billion to the energy sector through 425 projects or companies in 44 countries on six continents. EIG’s clients include many of the leading pension plans, insurance companies, endowments, foundations and sovereign wealth funds in the U.S., Asia and Europe. EIG is headquartered in Washington, D.C. with offices in Houston, London, Sydney, Rio de Janeiro, Hong Kong and Seoul. For additional information, please visit EIG’s website at www.eigpartners.com.

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