Slide 1: Tecogen Q1 2026
Tecogen Q1 2026 NYSE American: TGEN May 13, 2026
Slide 2: Safe Harbor Statement
SAFE HARBOR STATEMENT This presentation and accompanying documents contain “forward-looking statements” which may describe strategies, goals, outlooks or other non-historical matters, or projected revenues, Income, returns or other financial measures, that may include words such as "believe," "expec
Slide 3: Table of Contents
Table of Contents Strategic Updates Q1 Results On-Site Cogeneration Service Company Financials
Slide 4: Strategic Update
Strategic Update Highlights Before • Financial – Gross profit >40%, cost cuts made and customer Chiller Operating on Grid + Engine deposits expected • New data center use cases • Dynamic load shedding to jump utility interconnection queues • Increasing resiliency by providing uninterruptable cooling
Slide 5: Strategic Update
Strategic Update Expecting PO for 1MW of cooling for permanent installation at Vertiv’s facility Customer Demonstrations • Hosting product demonstrations at Tecogen’s factory 5
Slide 6: Other Segments Opportunity Update
Other Segments Opportunity Update Sales Pipeline • >$8m of projects approved by customers • Out of this $8m, $2.3m with PO and deposit, remaining expected in 30 to 45 days Cash • $9.3m at end of Q1 and $8.5m in May • Expecting substantial customer deposits Healthcare Industrial Other Cannabis 6
Slide 7: 1Q 2026 Results
1Q 2026 Results Tecogen, Inc. QTD QTD Product Margin Consolidated P&L - QTD % Change 03/31/2026 03/31/2025 2026 vs 2025 • Limited product revenue in Q1 due to Revenues Product $ 1,175,300 $ 2,533,809 -53.6% delayed projects. Order pipeline is Services 4,636,394 4,245,021 9.2% improving. Energy Produ
Slide 8: 1Q 2026 Adjusted EBITDA Reconcilliation
1Q 2026 Adjusted EBITDA Reconcilliation Key Points Tecogen, Inc. QTD QTD % Change Adjusted EBITDA - QTD 03/31/2026 03/31/2025 2026 vs 2025 • Adjusted EBITDA decreased due to lower Consolidated Net Income (Loss) $ (2,120,573) $ (659,922) 221.3% revenue and higher costs Interest Expense, Net 34,244 32
Slide 9: Q1 2026 Performance by Segment
Q1 2026 Performance by Segment Tecogen, Inc. QTD QTD % Change 03/31/2026 03/31/2025 2026 vs 2025 Products Segment Revenue $ 1,175,300 $ 2,533,809 -53.6% Key Points Cost of Sales 647,348 1,487,750 -56.5% Gross Profit 527,952 1,046,059 -49.5% • Product revenue decreased 54% Gross Profit Margin 44.9% 4
Slide 10: Summary
Summary Multiple positive developments including expected first PO with Vertiv Non-data center pipeline strong Strong insider confidence shown by share purchases by management and board in March