Slide 1: Investor Presentation June 2025
NYSE AMEX:TGEN Investor Presentation June 2025
Slide 2: Safe Harbor Statement
Safe Harbor Statement This presentation and accompanying documents of Tecogen Inc. (“we,” “our,” “us”) contain “forward-looking statements” intended to qualify for the safe harbor from liability established by the Private Securities Litigation Reform Act of 1995. Such statements relate to future eve
Slide 3: Table of Contents
Table of Contents Data Center Cooling Opportunity Tecogen Overview Natural Gas Driven Cooling On-Site Cogeneration Service Company Financials
Slide 4: Data Center Cooling Opportunity
Data Center Cooling Opportunity
Slide 5: Current Problem With A Typical AI Data Center
Current Problem With A Typical AI Data Center Illustrative Power Consumption Within AI Data Center AI Data centers need significant amounts of power for computing Data Center Cooling systems tie up significant amounts of the available power as they are Up to 35% designed for peak cooling conditions
Slide 6: Current Problem vs Tecogen's Advanced Natural Gas Cooling
Current Problem With A Typical AI Data Center Current Problem - Electrical Cooling Solution - Tecogen’s Advanced Natural Gas Cooling 70MW 25MW 90MW Available for Available for IT Cooling IT 5MW Computing Computing Cooling Cooling Power (MW) Cooling Power (MW) 30 30 20 20 MW MW 10 10 0 0 Summer Summe
Slide 7: Tecogen's Solution
Tecogen’s Solution Advanced Natural Gas Cooling Increases Available Power for Computing • Switching from electricity-driven to natural gas- driven chillers will increase power available for computing Fast and Easy Installation for existing and new data centers • Like-for-like replacement of electric
Slide 8: Tecogen Chillers Compared To Alternatives
Tecogen Chillers Compared To Alternatives Gas Absorption Chillers Electric Chillers 2X More Efficient 01 Than competing gas cooling technologies Cost of Operation Up to 50% Lower Cost of Operation 02 Compared to an electric chiller Made in the USA 03 Less susceptible to tariffs Electrical Power Need
Slide 9: Proven Market Traction
Proven Market Traction Signed Global Partnership With Vertiv For Data Center Cooling • Vertiv is No.1 globally in thermal management for data centers1 • Marketing agreement signed Feb 2025 • Product and Service supply agreement in negotiation Data Center Pilot Sites (Power Generation) • Enterprise d
Slide 10: Financial Impact Of Data Center Wins For Tecogen
Financial Impact Of Data Center Wins For Tecogen Illustrative Example of Small AI Data Center1 Financial Impact to Tecogen Revenue 11,000 tons of chillers => $13M Impact in Incremental Revenue Chillers & • 2024 Gross Profit Margin: Ancillaries >43% • Current Adjusted EBITDA Profitability breakeven p
Slide 11: Favorable market trends
Favorable market trends Total Data Center Electricity Consumption1 Data Center Cooling Market2 600 High 580 12.0% of US total $51.3B 500 400 TWh 300 1.9% of US total Low 325 $19.9B 200 100 6.7% of US total 0 2014 2016 2018 2020 2022 2024 2026 2028 2024 2030 Electricity consumption for data centers a
Slide 12: Investment Highlights
Investment Highlights Significant Revenue Growth Opportunity Made in the USA 01 We believe a single small to medium data center win 04 The company manufactures in Billerica, MA and has a can double Tecogen’s product revenue predominantly US based supply chain Poised for Profitability Collaboration w
Slide 13: Company Overview
Company Overview
Slide 14: Three Product Offerings
Three Product Offerings Natural gas engine driven cooling On-site power generation Service Increase available power by Generate power on-site using 24/7 factory service because switching electrical cooling to high modular, easy to deploy microgrid reliable equipment operation efficiency natural gas
Slide 15: At A Glance
At A Glance Overview Blue Chip Customers Headquartered Billerica, MA Founded 2000 Key Highlights Natural Gas-powered Product Chillers, On-site Power Categories Generation, Service CY 2024 Made in USA Proven Key Global $22.6 million ~26,000 ft2 Proprietary Partnerships Revenue New 2024 factory with T
Slide 16: Tecogen Headquarters, Billerica, MA
Tecogen Headquarters, Billerica, MA Cogeneration Production Line Water Cooled Chiller Line Hybrid Chiller Line
Slide 17: Tecogen Chillers
Tecogen Chillers Water Cooled Chillers • Water cooled chillers from 150 tons to 500 tons • Frees up electrical capacity and has up to 50% lower operating costs compared to a similar sized electric chiller Hybrid Air-Cooled Chillers • Two power sources for extra resiliency, such as during grid outage
Slide 18: Tecogen Cogeneration Systems
Tecogen Cogeneration Systems Tecopower Tecopower 75kW • On-site Power generation and hot water • Energy efficiency savings are the primary driver InVerde • Suited for sites with concurrent and consistent electric/heating demand; operates off-grid when utility power is not available • Resiliency and
Slide 19: Quiet, Compact, Easy to Install
Tecogen Cogeneration Compared To Alternatives Quiet, Compact, Easy to Install Easy to Install in Urban Environments Designed to meet space, air-permitting 01 and noise constraints of urban environments Modular Building Blocks Covers wide range of building loads; 02 additional units can be added for
Slide 20: Service Center Business
Service Center Business Service Center Locations Increasing Recurring Services Revenue Stream $16.1M $14.5M $11.5M $12.1M $10.1M 2020 2021 2022 2023 2024 • 11 service centers and 55+ Tecogen service employees • Products are typically sold with factory service contracts • Service of both on-site powe
Slide 21: Conclusion
Conclusion Significant Revenue Growth Opportunity Made in the USA 01 We believe a single small to medium data center 04 The company manufactures in Billerica, MA and win can double Tecogen’s product revenue has a predominantly US based supply chain Poised for Profitability Collaboration with Vertiv
Slide 22: Appendix
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Slide 23: Leadership Team
Leadership Team Members of Management Abinand Rangesh CEO/CFO & Director ROGER DESCHENES JACK WHITING CAO GENERAL COUNSEL Board Members JOHN ANGELINA AHMED GHONIEM Robert Panora HATSOPOULOS GALITEVA DIRECTOR President & COO LEAD DIRECTOR CHAIRPERSON EARL R LEWIS III SUSAN HIRSCH JOHN ALBERTINE DIREC
Slide 24: Non-Executive Board Members
Non-Executive Board Members John Hatsopoulos Angelina Galiteva Ahmed ghoniem Earl R lewis III Susan Hirsch John Albertine Lead Director Chairperson Director Director Director Director Mr. Hatsopoulos is Lead Director of Ms. Galiteva has been Chairperson of Dr. Ghoniem has been a member of the Mr. Le
Slide 25: Appendix - How does our technology work?
Appendix - How does our technology work? Mechanical Combined Heat & Power (CHP) • “Engine Driven Chillers” • Chilled Water + Hot Water (reduces on-site need for electricity) Electricity or Chilled Water AND / OR Generator or Compressor Electrical Combined Heat & Power (CHP) • Electricity + Hot Water
Slide 26: Appendix – Value Proposition to an AI data center
Appendix – Value Proposition to an AI data center Benefits of Tecochill vs Electric Cooling for AI Data Centers 2,000 Ton Chiller Plant $1,900,800 $1,357,875 $(100,000)$(200,000) $(342,925) $(630,720) $(730,720) Revenue From Selling Chiller Energy Costs Chiller Maintenance Total Profit Per Year Elec