Tecogen Inc. · AMEX:TGEN

Tecogen — Technical Presentation (February 2021)

21 slides from Tecogen's technical presentation, Feb 25, 2021

  1. Slide 1: LPG Near Zero Emission System for Forklifts – Status Update

    Energy Efficiency Reimagined OTCQX: TGEN LPG Near Zero Emission System for Forklifts – Status Update Robert Panora President & COO

  2. Slide 2: Topics

    Topics Tecogen Inc. Technology Background Ultera® Aftertreatment Process Application to Forklifts Regulatory issues MCFA Work Emissions Performance (modified 2.5 L GCT LPG engine) Program Status Origin Engines Agreement Future Final Thoughts & Questions 2

  3. Slide 3: Tecogen Inc.

    Tecogen Inc. CHP OEM Installations & Service Technology development - emissions ✓ 125 kW ✓ Proprietary inverter ✓ CERTS certified microgrid system ✓ Blackout protection ✓ 60 -75 KW ✓ Cost effective heat and power 3 ✓ Gas cooling –lower operating costs ✓ 50 – 400 Tons ✓ “Free” waste heat

  4. Slide 4: Emission Technology Origins

    Emission Technology Origins ➢Stationary NG engine scrutinized ➢Unannounced testing by regulators ➢Exposed widespread non-compliance ➢Regulators enacted harsh countermeasures ➢ Lowered compliance levels ➢Tecogen awarded research grant (CEC & SoCalGas) ➢Achieved groundbreaking process: Ultera® ➢Emissi

  5. Slide 5: Tecogen Ultera 2-Stage Technology

    Tecogen Ultera 2-Stage Technology ➢Previously demonstrated two stage process but initial experiment failed ➢Stage 1: Operate to Minimize NOx (Rich) ➢Stage 2: Inject Air Upstream to Create Oxidizing Environment ➢But NOx reformed in second stage ➢Patented Breakthrough: Interstage Cooling ➢NOx reformat

  6. Slide 6: Independent Testing on Various Stationary NG Engine Platforms

    Independent Testing on Various Stationary NG Engine Platforms ➢ Performance exceeds California regs by wide margin ➢Demonstrates ease of technology transfer ➢ Large and small engines ➢ Indifferent to manufacturer ➢ Solves the problem associated with the inherent limits of three-way catalysts ➢ Can h

  7. Slide 7: Successful Technology Transfer

    Successful Technology Transfer ➢Repeatable chemistry with carbon-based fuels ➢NG, LPG, Gasoline, Biogas, ➢Easily retrofit NG Emergency Generator 100-250 kW Municipal Water Pumping NG Engine – 250 HP Gasoline Passenger Vehicle Chassis Dyno Testing 7 LP Gas Forklift Truck w/ MCFA

  8. Slide 8: AVL Testing of Passenger Vehicle

    AVL Testing of Passenger Vehicle ➢87% CO reduction ➢86% NMOG reduction ➢20% NOx reduction (without AFR adjustments) ➢26% NOx + NMOG reduction 8

  9. Slide 9: Forklift Initiative

    Forklift Initiative Ultera process fits well with forklift application Engine duty cycle exceptionally variable Ultera emissions performance tolerant of air/fuel ratio excursions CO elimination highly valued because of indoor air quality consideration Many low emissions technologies singularly focus

  10. Slide 10: Current Compliance Requirements (CA)

    Current Compliance Requirements (CA) OEM Certifications Bare test engine Optional OLES NOx/HC available (see table) Pairing of NOx and HC as single pollutant annoying (unpaired in truck regs) Fleet operators Maintain fleet emission averages Program goal to meet most stringent OLES value New CARB (Ca

  11. Slide 11: Ultera Forklift Integration

    Ultera Forklift Integration 11 Stock MCFA lift truck features Model GP25N (2.5L engine) 5000 lb capacity GCT (Global Component Technology) fuel system Three-way catalyst Muffler Radiator

  12. Slide 12: Ultera Forklift Integration

    Ultera Forklift Integration ➢Fully integrated under counterweight 12

  13. Slide 13: Process and Instrumentation Diagram

    Process and Instrumentation Diagram 3-Way Catalyst Engine Exhaust Engine Radiator Exhaust Heat Exchanger Second Stage Catalyst Hot Exhaust Bypass Hot Mix Valve Cooled Exhaust Cold Mix Valve Controller T4T1 T2 Injection Air Pump Tailpipe Engine Coolant Hot Exhaust Bypass Injection Air Cooled Exhaust

  14. Slide 14: Ultera Performance (pre-engine tuning)

    Ultera Performance (pre-engine tuning) ➢4300 lb lift cycle ➢OEM factory AFR calibration ➢Third-party validation ➢Confirmed CO and NOx trends ➢ THC data ➢% Reduction based on pollutant mass * Based on estimated mass flow Tecogen Third-Party CO 98.8% 91.0 % THC N/A 52.1% NOx 24.3% 29.2% 14 ➢Test cours

  15. Slide 15: Driving/Lift Test (results vs. time)

    Driving/Lift Test (results vs. time) 15

  16. Slide 16: Engine Retuning (last step)

    Engine Retuning (last step) Optimal Ultera performance required engine retuning Firmware changes in air-fuel ratio needed by programming specialist (Mitsubishi affiliate from Japan) Retuning objective is to bias air/fuel proportion for improved NOx reduction in first stage Retuning specialist from J

  17. Slide 17: Final Tests Results (retuned engine)

    Final Tests Results (retuned engine) Retesting on standard test cycle (heavy lifts, etc.) 17

  18. Slide 18: MCFA Engine Certification Status

    MCFA Engine Certification Status With positive test data from retuning, we project successful certification result likely Notably, test cycle is completed on dyno on bare engine Similar but not the identical to our drive cycle Additional retuning to test cycle might be needed We decided to proceed w

  19. Slide 19: Origin Engine Ultera Agreement

    Origin Engine Ultera Agreement Origin Engines Nebraska-based manufacturer Innovative, fast growing supplier in industrial markets Aware of growing value of low emissions to customers Tecogen supplier for our CHP products Tecogen/Origin License Agreement (November 2020) Engines 80 to 280 bhp (no conf

  20. Slide 20: Future

    Future MCFA program COVID delay unfortunate MCFA remains enthusiastic about technology Origin agreement very positive outlook Strong potential to expand Ultera Other lift manufacturers and other markets Aggressive schedule for implementation Ongoing catalyst research Third party contracted by Tecoge

  21. Slide 21: Final Thoughts and Questions

    Final Thoughts and Questions Possible marketing strategies Program originally emphasized certification to CA OLES (or near zero) Certification has value but limited to outdoor air-quality concerns Alternative would be to emphasize indoor air-quality impact Universal appeal (not limited to California

Tecogen — Technical Presentation (February 2021) on 6ix