Solaris Energy Infrastructure, Inc. · NYSE:SEI

Solaris Energy Infrastructure — Investor Presentation (September 2026)

31 slides from Solaris Energy Infrastructure's investor presentation, Sep 8, 2026

1. Slide 1: Solaris Energy Infrastructure, Inc. Investor Presentation

   Solaris Energy Infrastructure, Inc. Investor Presentation September 8, 2026

2. Slide 2: Solaris Accelerates Purpose-Built Power Solutions

   Solaris Energy Infrastructure ~$4-5 Billion Solaris Accelerates Purpose-Built Power Solutions Market Capitalization Business Segments & End Markets Power Solutions Logistics Solutions Hyperscalers/ Refinery & Chemical Manufacturing Utilities Healthcare Gas Mining Energy - Upstream Data Centers Proce

3. Slide 3: Recent Updates

   Solaris Energy Infrastructure NEW: Raised 2026 and Initiating Q1 2027 Adjusted EBITDA (1) Guidance Recent Updates - Q3 raised to $110-130 million from $90-105 million - Q4 raised to $145-180 million from $100-120 million - Q1 initiated at $200-240 million NEW: Acquired Omega, A Specialized EPC Firm

4. Slide 4: Raising 2026 and Initiating Q1 2027 Adjusted EBITDA Guidance

   Solaris Energy Infrastructure Raising 2026 and Initiating Q1 2027 Adjusted EBITDA Guidance (1) Driven by Stronger Performance from Core Power Service Offering as Well as Recently Acquired Service Lines Q3 2026 Adj EBITDA Guidance - Revised Q4 2026 Adj EBITDA Guidance - Revised Q1 2027 Adj EBITDA Gui

5. Slide 5: Expanded Capabilities, Broadened Offerings, Increased Earnings

   Solaris Energy Infrastructure Expanded Capabilities, Broadened Offerings, Increased Earnings Quarterly Segment EBITDA by Service Line; Q2 2024 – Q1 2027 Guidance Midpoint Sep 2024 Aug 2025 Dec 2025 Mar 2026 Jul 2026 Sep 2026 2-year Pro Forma Adjusted (Minority Inv.) EBITDA CAGR ~140% 250.0 Distribut

6. Slide 6: Contracted Growth Drives Multi-Year Earnings Visibility

   Solaris Energy Infrastructure Contracted Growth Drives Multi-Year Earnings Visibility New Power Contracts and Power Services Lift Visible Annual EBITDA with Further Upside Potential Contracted EBITDA at Full Deployment + Illustrative Potential Annual Adjusted EBITDA (1,2,3) ($ millions) Upside Poten

7. Slide 7: Rapid Demand Growth Combined with Capital Investment to Support Data Center Demand

   Solaris Energy Infrastructure Rapid Demand Growth Combined with Capital Investment to Support Data Center Demand Early Mover Advantage in Addressing Nascent and Rapidly Expanding Market Opportunity Power Capacity Growth: Current + On Order Illustrative Adjusted EBITDA Pro Forma Potential (4) ($ mill

8. Slide 8: Diversified Mix of Long-term, Primarily Turnkey Power Projects

   Solaris Energy Infrastructure Diversified Mix of Long-term, Primarily Turnkey Power Projects $5 Billion of Current + Planned Investments in Power Will Drive Attractive Returns on Capital Data Center Contract A Data Center Contract C Current + Planned Invested Capital (1) Stateline Power Customer C ▪

9. Slide 9: Solidifying Partnerships with Global Technology Leaders with Scale and Duration

   Solaris Energy Infrastructure Solidifying Partnerships with Global Technology Leaders with Scale and Duration 2,200+ MW Multi-Year Partnerships Primarily with Three Leading Technology Companies Increase in Solaris’ Average 10-18+ years Power Contract Tenor 8 to 9 years 7 to 8 years + Customer C (Inv

10. Slide 10: Behind-the-Meter Power: A Structural, Long-Term Advantage

    Solaris Energy Infrastructure Behind-the-Meter Power: A Structural, Long-Term Advantage Five Reasons the Benefits Now Go Beyond Speed-to-Power Economics Converging Enhanced Reliability Planning Flexibility Regulatory Tailwinds Sticky Infrastructure BTM costs are converging Backup power with Generati

11. Slide 11: Massive AI Infrastructure Spend is a Significant Tailwind for Solaris

    Solaris Energy Infrastructure Massive AI Infrastructure Spend is a Significant Tailwind for Solaris Tech is committing hundreds of billions to AI infrastructure that is evolving to require more compute and thus more power Big Tech Capex Estimates (1) Trend Power Density of Next-generation GPUs Neces

12. Slide 12: Fully Integrated Model Supports Differentiated, Turnkey Power Solution

    Solaris Energy Infrastructure Fully Integrated Model Supports Differentiated, Turnkey Power Solution Turnkey power solutions tailored to customer’s needs Custom Grid Design ‘Balance of plant’ offering, provides enhanced earnings and SCR emissions control equipment Expertise in Design, Engineering, a

13. Slide 13: Disciplined Approach to Capital Deployment with Substantial Financial Flexibility

    Solaris Energy Infrastructure Disciplined Approach to Capital Deployment with Substantial Financial Flexibility Capital Allocation and Balance Sheet Overview Capital Allocation Priorities Pro Forma Debt Capitalization Table to Fund 3.2 GW Annual Notional Defend & Optimize Organic Investment in Inter

14. Slide 14: A Compelling Way to Invest in Power Infrastructure – High Growth Trading at a Discount

    Solaris Energy Infrastructure A Compelling Way to Invest in Power Infrastructure – High Growth Trading at a Discount Bloomberg Four-Year (2025-2029) Consensus EBITDA CAGR Bloomberg EV / 2029 Adjusted EBITDA Multiple 16x (As of 9/4/2026) (As of 9/4/2026) 124% SEI trades at the lowest multiple of peer

15. Slide 15: Key Takeaways

    Solaris Energy Infrastructure Key Takeaways Provides Critical, Behind-the- Contract Coverage at Longer- Aligned, Founder-Led Meter Power Infrastructure term Tenors Significantly Management Team with Which Remains in Short Supply Derisks Cash Flows and Significant Insider Ownership and is Deployed Wi

16. Slide 16: Appendix

    Solaris Energy Infrastructure Appendix solaris-energy.com

17. Slide 17: Omega Acquisition Expands Turnkey Offerings and Enhances Execution

    Solaris Energy Infrastructure September 2026 Acquisition Omega Acquisition Expands Turnkey Offerings and Enhances Execution Transaction Strategy Highlights Commercial Pipeline by End Market (2H26-2027) ▪ Expands Turnkey Execution Capabilities – Adds to full cycle solutions ▪ Addresses Key Industry B

18. Slide 18: Specialty Heavy Civil Platform Built for Power and Data Infrastructure

    Solaris Energy Infrastructure September 2026 Specialty Heavy Civil Platform Built for Power and Data Infrastructure Acquisition Differentiated Capabilities ▪ Deep foundations – piling, drilled shafts, equipment pads ▪ Substation civil – pads, trenching, tunneling required for grid connection ▪ Chall

19. Slide 19: GESA Acquisition Delivers Full Cycle Power Services Globally

    Solaris Energy Infrastructure July 2026 GESA Acquisition Delivers Full Cycle Power Services Globally Acquisition One Acquisition, Two Full Cycle Power Operations Transaction Highlights ▪ Deepens in-house expertise to service the full power project cycle, with R&M spanning all installed turbine and g

20. Slide 20: GESA’s Services Expand Solaris’s Full Power Asset Cycle

    Solaris Energy Infrastructure July 2026 Acquisition GESA’s Services Expand Solaris’s Full Power Asset Cycle Power Asset Lifecycle Revenue Distribution by End Market (2025-2026 YTD) International Power 11% Spare Parts & Equipment Dismantling Utility/IPP Installation & Plant Operation & Industrial 32%

21. Slide 21: Turnkey Power Model Generates Attractive Returns with Durable Cash Flow

    Solaris Energy Infrastructure Turnkey Power Model Generates Attractive Returns with Durable Cash Flow Illustrative Cumulative Free Cash Flow and Returns Profile of Turnkey Power Projects Cash Generation Phase: Project enters service with ratable energization; breakeven is reached Illustrative Exampl

22. Slide 22: Generation Required to Support Modern Industrial Loads

    Solaris Energy Infrastructure Generation Required to Support Modern Industrial Loads Larger, Complex Power Needs Drive a Need for Modular Generation with Multiple Sources of Redundancy Generation Stack Then (40-50 MW) Generation Stack Now/Future (1+ GW) Microgrid w/ Integrated Primary Power, Inertia

23. Slide 23: Integrated Power Service Business Model Comparison

    Solaris Energy Infrastructure Integrated Power Service Business Model Comparison Solaris receives fixed + variable monthly payments to provide co-located, behind-the-meter, turnkey service which includes the integrated provision of generation (turbines) and distribution (transformers, switchgear, an

24. Slide 24: Company Values

    Solaris Energy Infrastructure Company Values solaris-energy.com 24

25. Slide 25: Current Capital Plan: Growth to 3,200 MW and Contracted Enhanced Scope

    Solaris Energy Infrastructure Current Capital Plan: Growth to 3,200 MW and Contracted Enhanced Scope Remaining Consolidated and Net Capex (1) (2) ($ millions) Actual Actual Forecast Forecast Forecast Forecast Forecast Q1 2026 Q2 2026 Q3 2026 Q4 2026 2027 2028 2029 Consolidated Capex (3) $343 $492 $5

26. Slide 26: Financial Guidance: Q3 2026 - Q1 2027

    Solaris Energy Infrastructure Financial Guidance: Q3 2026 - Q1 2027 ($ and shares in millions) Q2 2026 Actual Q3 2026 Guidance Q4 2026 Guidance Q1 2027 Guidance Power Solutions Adjusted EBITDA $96 $100-119 Logistics Solutions Adjusted EBITDA $25 $23-25 Corporate and Other Expense ($13) ($13-14) ($15

27. Slide 27: Debt Capitalization Summary: Current and Fully Deployed JV Capacity

    Solaris Energy Infrastructure Debt Capitalization Summary: Current and Fully Deployed JV Capacity ($ in millions) Annual Pro Forma Potential w/Fully Deployed JV Interest Rate Notional Balance at 6/30/26 and Acquisition Capacity (1) Convertible Notes due 2030 ($26.39 conversion price) 4.75% $155 $155

28. Slide 28: Capitalization Options for Valuation Purposes

    Solaris Energy Infrastructure Capitalization Options for Valuation Purposes Option 1: Treat Convertible Option 2: Treat Convertible ($ and shares in millions) Notes as Debt Notes as Shares Debt Convertible Notes due 2030 ($26.39 conversion price) $155 - Convertible Notes due 2031 ($57.20 conversion

29. Slide 29: EBITDA and Adjusted EBITDA Reconciliation

    Solaris Energy Infrastructure EBITDA and Adjusted EBITDA Reconciliation Three months ended, Twelve months ended December 31, ($ in 000s) June 30, 2026 March 31, 2026 December 31, 2025 September 30, 2025 2025 2024 2023 Net income $25,232 $32,055 ($3,509) $24,814 $58,402 $28,918 $38,775 Depreciation a

30. Slide 30: Disclaimer

    Solaris Energy Infrastructure Disclaimer Forward-Looking Statements This presentation 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 state

31. Slide 31: solaris-energy.com

    Solaris Energy Infrastructure solaris-energy.com Follow us on LinkedIn Solaris Energy Infrastructure Follow us on LinkedIn 9651 Katy Freeway, Suite 300 Houston, Texas 77024 solaris-energy.com

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