Company and date here 23 June 2009
Agenda Xebec Overview & Product Offering Installation Base & Dairy Digester Case Studies Key drivers of biogas upgrading economics
Xebec Adsorption Inc. Manufacturer of gas purification & dehydration equipment Renewable Energy & Industrial Markets: Natural gas dehydration for CNG infrastructure Biogas purification for pipeline injection or CNG vehicle fuel Hydrogen purification Public Company: Merger of Xebec with QuestAir Technologies Inc. Listed on the Toronto Stock Exchange under XBC
Xebec Packaged Biogas Upgrading Solutions Production of pipeline- or CNG-grade methane from biogas Compact, skid-mounted designs for easy installation Simple to control & operate Utilizes proprietary PSA technology for CO2 removal Solutions for wide range of biogas feed sources
Agenda Xebec Overview & Product Offering Installation Base & Dairy Digester Case Studies Key drivers of biogas upgrading economics
Xebec Biogas Project Experience Project Location Waste Source Biomethane End-Use Product Purity Scenic View Dairy Michigan, US Dairy Pipeline 98% Rumpke Landfill Ohio, US Landfill Pipeline 96% Widnau Switzerland Mixed Farm Pipeline 96% Lavigny Farm Switzerland Mixed Farm Pipeline 96% UNH New Hampshire, US Landfill Turbine 85% SKS Austria Green Waste CNG 94% Swiss Farmer Switzerland Mixed Farm Pipeline 96% STEP Switzerland Industrial Pipeline 96% Hilarides Dairy California, US Dairy CNG 98% Daesung Korea Landfill CNG 81% SKS Austria Green Waste CNG 96% Hyundai Korea Landfill CNG 97%
Biogas-to-Pipeline Case Study: Scenic View Dairy Location: Developer: Biomass Feed: Raw Biogas: Biomethane Product: Pipeline Customer: Michigan, US Phase 3 Renewables Manure (5,000 cows) & biodiesel plant waste 60% CH4 ~200 Nm3/h 96+% CH4 Michigan Gas Utilities (MGU)
Biogas-to-CNG Case Study: Hilarides Dairy Location: Developer: Biogas Feed: Raw Biogas: End-use: CNG Customer: California, US Phase 3 Renewables Covered Lagoon Digester 58% CH4 ~270 Nm3/h CNG Vehicle Fuel Hilarides Dairy (CNG dairy trucks & pickups)
Mixed Waste-to-Pipeline Case Study: Swiss Farmer Location: Developer: Biogas Feed: Raw Biogas: End-use: Inwil, Switzerland Acrona Systems Manure, food waste 60% CH4 ~225 Nm3/h Pipeline injection Wheeling through grid to CNG stations
Agenda Xebec Overview & Product Offering Installation Base & Dairy Digester Case Studies Key drivers of biogas upgrading economics
Key Drivers of Biogas Upgrading Economics 1. End-use 2. Economies of scale 3. Quality of feed biogas H2S, other 4. Location & Logistics
Key Economic Drivers End Use Gasoline ($3.00/gal) Diesel ($2.80/gal) CNG ($1.79/gge) Natural Gas ($8/mmBtu) $0 $5 $10 $15 $20 $25 $30 Energy Price ($/GJ) - Retail or Commercial Source: EIA; www.cngprices.com;
Key Economic Drivers Economies of Scale Biogas Upgrading Cost ($/mmbtu) 7 6 5 4 3 2 1 0.1 1 10 Product biomethane Biogas flow Overview (million SCFD) Source: Electrigaz, Xebec estimates
Key Economic Drivers Biogas Quality Key biogas quality drivers: H2S content in raw biogas N2, O2 content H2S removal: H2S levels from Dairy manure can spike >1000 ppm Mitigation strategies in digester recommended Area of potential improvement
Key Economic Drivers Location & Logistics Production of CNG from biogas: Production relatively constant, CNG demand intermittent Mismatch between location of production & consumption Implications: Use gas grid for load balancing Wheeling through gas pipelines to existing CNG stations Gas utilities have a key role to play in biogas-to-cng Production of LNG from biogas offers greater flexibility
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