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2 Quick Notes Two Audio Options: Streaming Audio and Dial In. 1. Streaming Audio/Computer Speakers (Default) 2. Dial In: Use the Audio Panel (right side of screen) to see dial in instructions. Call in separately from your telephone. Ask questions using the Questions Panel on the right side of your screen. The recording of the webinar and the slides will be available after the event. Registrants will be notified by .

3 Promoting the use of Biogas and Anaerobic Digestion O O 149 Members from the U.S., Germany, Italy, Canada and the UK All Industry Sectors Represented Key Industry Goals: O Promote biogas markets, technologies and infrastructure O Achieve policy parity O Promote as a best practice for environmental stewardship and greenhouse gas reduction

4 Changing the Biogas Industry through: o Legislative and Regulatory Affairs o Federal: Biogas Tax Credit; Clean Energy Standard; NAT GAS Act; Farm Bill o States: California, Iowa, Massachusetts, Indiana, more o Sharing Expertise o 10 Specialized Working Groups o Education and Outreach o Briefings, presentations, and webinars for customers, policy makers, and the general public o Large Industry Network 145+ company members o Entire supply chain of production, processing and use Join Today! Josh Lieberman: jlieberman@ttcorp.com or call;

5 Outline Introduction Importance of Digesters Shonodeep Modak Potawatomi Digester Bryan Johnson APG1000 Biogas Engine Aaron Trexler Unison Fuel Treatment Jan Scott Heat Recovery Solutions John Lerch Q&A 5

6 Speakers Shonodeep Modak Global Marketing Manager, GE Energy gas engines Bryan Johnson, P.E. Renewable/ Sustainable Energy Team Leader, Titus Energy Aaron Trexler Oil Field Power Generation Product Line Manager, GE Energy gas engines Jan Scott President/Co Owner, Unison Solutions, Inc. John Lerch Marketing Manager, Heat Recovery Solutions, GE Energy gas engines Corey Honl Product Engineering Manager, GE Energy gas engines 6

7 Promoting the Anaerobic Digestion and Biogas Industries Choosing the best technology can make or break your project Digester Technology Biogas Engine Technology Methane Production Rate Pre Tax IRR Engine Efficiency Pre Tax IRR 25 ft 3 /cow/day 3% 33% 12% 35 ft 3 /cow/day 4% 36% 14% 40 ft 3 /cow/day 7% 39% 16% 55 ft 3 /cow/day 14% 42% 18% 60 ft 3 /cow/day 16% 45% 20% Every 5 ft 3 /cow/day is worth 48% 21% 2 3% in IRR Every 3% in efficiency is worth 1 2% in IRR

8 Promoting the Anaerobic Digestion and Biogas Industries Global coverage

9 Diverse power plant applications Promoting the Anaerobic Digestion and Biogas Industries

10 Promoting the Anaerobic Digestion and Biogas Industries In biogas, we see our engines as your financial engine Investment Metrics Internal Rate of Return (IRR) Capital Cost/Annualized EBITDA Project Payback 20% 15% 10% Project Profitability Curve Profitability Drivers Feedstock Size Technology Selection Power Price Pre Tax IRR 5% 0% 5% 2,000 Feedstock Volume 4,000 6,000 8,000 10,000 Carbon Price Finance Structure 10% 2,500 head dairy. Project financed by 20% equity, debt at 6% interest for 10 years. 470 kw generator 90% availability, 40% efficiency, 40 ft 3 /cow/day, $0.02/kWh REC, $0.10/kWh PPA, federal treasury grant (ARRA Sec. 1603). 15 year project life. No added organic waste. CapEx, $2.2M.

11 Promoting the Anaerobic Digestion and Biogas Industries Choosing the best technology can make or break your project Digester Technology Biogas Engine Technology Methane Production Rate Pre Tax IRR Engine Efficiency Pre Tax IRR 25 ft 3 /cow/day 3% 33% 2% 35 ft 3 /cow/day 4% 36% 4% 40 ft 3 /cow/day 7% 39% 6% 55 ft 3 /cow/day 14% 42% 7% 60 ft 3 /cow/day 16% 45% 9% Every 5 ft 3 /cow/day is worth 48% 10% 2 3% in IRR Every 3% in efficiency is worth 1 2% in IRR

12 Promoting the Anaerobic Digestion and Biogas Industries GE s engines deliver value to your biogas project η η η η η Project Scope 2,500 head dairy. Project financed by 20% equity, debt at 6% interest for 10 years. 470 kw generator 90% availability, 40% efficiency, 40 ft 3 /cow/day, $0.02/kWh REC, $0.10/kWh PPA, federal treasury grant (ARRA Sec. 1603). 15 year project life. No added organic waste. CapEx, $2.2M.

13 Green Energy from Community Based Biogas Digesters June 13 th, 2012 Bryan Johnson, P.E. Renewable and Sustainability Leader

14 Introduction Promoting the Anaerobic Digestion and Biogas Industries The Forest County Potawatomi Community (FCPC) is developing a 2 MW renewable energy project in downtown Milwaukee, WI Anaerobic digestion project using organic feedstock wastes to produce valuable biogas energy. Renewable energy generation is consistent with FCPC s environmental goals and values. A $2.6 million DOE Community Renewable Energy Deployment grant was obtained for this project. Several renewable technologies analyzed found biogas most feasible. When all approvals are obtained, construction will begin later this year and be completed in 2013.

15 Promoting the Anaerobic Digestion and Biogas Industries Project Description Utilize about 3 acres of land Former brown field site, originally tamarack swamp 10,000 s.f. building Two digester tank system Capital budget of ~$18M

16 Project Concept Promoting the Anaerobic Digestion and Biogas Industries

17 Project Planning Inputs: organic feedstock supply sources Siting considerations: locational synergies Digester technology selection Electrical CHP generation selection Plant Outputs: effluent, & digested solids Project structure: financing and Ownership Regulatory issues: wastewater permit, air permit Promoting the Anaerobic Digestion and Biogas Industries

18 Promoting the Anaerobic Digestion and Biogas Industries Simplified Digester Process Schematic Or Compost Flexible design for feedstock variation For use or sale

19 Promoting the Anaerobic Digestion and Biogas Industries Digester Input Organic Feed stocks A diverse range of organic materials can be used. Identify locally available feedstock materials. Develop a plan to cost effectively obtain organic feed stocks. Material uniformity and source control is an important consideration. Multiple supplies can help balance digester nutrient needs.

20 Promoting the Anaerobic Digestion and Biogas Industries Feedstock Biogas Generation Example Source: Basisdaten Biogas Deutchland, Marz 2005: Fachagentur Nachwachsende Rohstoffe e.v.

21 Promoting the Anaerobic Digestion and Biogas Industries Example Feedstock Material Receiving Feedstock can be delivered by tanker trucks as shown. Options are solid or liquid form Feedstock can be sent directly to digester or holding tank (with no exposed on site storage) The FCPC Milwaukee digester project will only accept tanker trucks and all unloading will occur inside the building structure. (no outside operations)

22 Biogas Engine Generator Selection Biogas engines have a long time established track record. The Milwaukee digester project is sized for 2 MW. Two GE Waukesha APG1000 high efficiency integrated cogeneration lean burn biogas engines selected for project. GE Waukesha met critical project criteria and delivery requirements. Requires gas conditioning to filter, remove moisture, H 2 S and test for other contaminates. Promoting the Anaerobic Digestion and Biogas Industries

23 Promoting the Anaerobic Digestion and Biogas Industries Power/Heat Generation GE s Waukesha APG1000 FCPC Biogas Engine Rating LHV of Fuel (min) BTU/SCF 400 Engine Power BHP 1402 Engine Efficiency % 41.3% Thermal Efficiency % 46.0% Total Efficiency* % 85.7% Electric output per engine MW 1.0 Available heat water jacket MMBtu/hr Available heat exhaust (to 350 deg f) MMBtu/hr Note: GE Waukesha APG1000 was developed as part of a DOE program to produce the next generation of high efficiency IC engines by U.S. manufacturers.

24 Promoting the Anaerobic Digestion and Biogas Industries Community Digester Benefits and Summary Anaerobic digestion and biogas generation proven technology The FCPC Community Digester will utilize available organic feedstock wastes to produce valuable energy. Electrical CHP generation will benefit FCPC with an economical means to produce renewable energy Environmental benefits achieved Waste minimization Supports independence from fossil fuels GHG reductions

25 GE s Waukesha APG1000

26 Promoting the Anaerobic Digestion and Biogas Industries Features Description Advantage Efficiency Emissions Packaging Fuel control Optimized Miller cycle combustion, low flow loss engine breathing, specific turbocharger matching and high efficiency generators, class leading electrical efficiency of Hz Availability of two different NOx emissions settings for 50/60 Hz allows for application flexibility (1g/TA Luft & 0.6g/1/2 TA Luft) Overall engine/genset envelop supports containerization with a CHP package available providing 89.4% efficiency Biogas fuel system optimized to handle changing fuel quality with heating values of BTU/ft 3 ( MJ/Nm 3 ) Higher electrical efficiency maximizes return on investment Optimized efficiency at each emissions rating Ability to create a compact and portable genset solution Application flexibility, minimal manual intervention, increased uptime/availability, maximizes return on investment

27 Promoting the Anaerobic Digestion and Biogas Industries 5 products for waste to energy applications (60 Hz) Electrical output range (kw) Jenbacher type 6 J612 J616 J620 Jenbacher type 4 J412 J416 J420 Waukesha APG 1000 APG 1000 Jenbacher type 3 J312 J316 J320 Jenbacher type 2 J

28 Promoting the Anaerobic Digestion and Biogas Industries Bare engine ESM controls w/afr Optional biogas fuel system Optional exhaust & main bearing thermocouples Enginator* Bare engine + generator Engine mounted JW & AUX pumps & thermostats Optional high efficiency generator Scope Enginator* w/chp configuration Increased thermal efficiency Plate & frame heat exchanger ECP8000E control panel Ethernet connection for panel controls

29 Promoting the Anaerobic Digestion and Biogas Industries Container friendly overall engine design 70.87in 1,800mm 201in (5,105mm)

30 Promoting the Anaerobic Digestion and Biogas Industries Low profile air filter easily fits within container enclosure without modification

31 Promoting the Anaerobic Digestion and Biogas Industries Single turbocharger combined with Miller Cycle technology reduces fuel consumption for a higher return on investment

32 Optimized biogas specific fuel control system Little user interaction Easy engine starting Increased fuel flexibility Maximized uptime 32 GE Energy Gas Engines APG1000 Presentation Launch Event 2012

33 Fuel control valve Adjusts to changes in biogas composition, minimizing operator interaction Optimized biogas specific fuel control system provides customer peace of mind Gas regulator Maintains constant fuel pressure from commonly unstable fuel source for optimal engine performance Double blocking valve Two safety shutoff valves includes a valve proving system to ensure safe operation 33 GE Energy Gas Engines APG1000 Presentation Launch Event 2012

34 Promoting the Anaerobic Digestion and Biogas Industries The APG MW Enginator CHP package allows for optimized efficiency by maximizing heat recovery. CHP components are factory mounted, minimizing installation time and cost. Low temp circuit has a return temperature of 130 F Very little waste, small size radiator for discharging remaining waste heat High efficiency 41.7% electrical & 89.4% total High temp circuit has a supply temperature of up to 230 F Full featured CHP control panel to control ancillary equipment

35 Hampton Downs Landfill Promoting the Anaerobic Digestion and Biogas Industries Four Waukesha APG1000 containerized Enginators have been running at Hampton Downs Landfill in New Zealand since 2009, providing an output of 4,400 kwe.

36 Project Storg/P. Lavrijsen Promoting the Anaerobic Digestion and Biogas Industries Helchtern, Belgium The animal waste biogas is processed in 2 1MW APG1000 gas CHP units. The manufactured heat and electricity is partially delivered to a nearby located recreation park Molenheide. The remaining heat is used for bio processing, electricity is fed to the grid.

37 Cavite City, Philippines Promoting the Anaerobic Digestion and Biogas Industries In Cavite City, Philippines, an APG1000 Enginator running on digester gas produces 1100 kwe of electricity, is used for farm operation. Excess electrical output is sold to the local grid and the heat produced is used for the incubators. This site was named one of the World s Best Power Plants in the January February 2010 issue of Diesel & Gas Turbine Worldwide.

38 Promoting the Anaerobic Digestion and Biogas Industries The Forest County Potawatomi Community project will include installation of a biogas generation plant on Tribe owned land in Milwaukee County.

39 Unison Solutions, Inc. Biogas Treatment Systems American Biogas Council Webinar Saving Cities With Waste Power: Putting Biogas To Work June 13, 2012

40 Complete System Process Flow Diagram Electrical Control Panel Glycol Chiller Biogas Source Hydrogen Sulfide Removal System Gas Blower/ Moisture Removal System Siloxane Removal System End Use Equipment

41 Hydrogen Sulfide Removal Fixed Bed Media Systems SulfaTreat Iron Sponge Biological Systems Iron Sponge / Biological Systems

42 SulfaTreat/Iron Sponge Process Biogas containing Hydrogen sulfide (H 2 S) Media: Sulfatreat or Iron Sponge Water to Drain Biogas free of Hydrogen Sulfide (H 2 S)

43 Gas Compression/Moisture Removal System Gas Blower Inlet Moisture/ Particulate Filter Rotary Lobe Positive Displacement Blower OR Multistage Centrifugal Blower Forced Air To Gas Heat Exchanger (Optional) Dual Core Heat Exchanger Glycol Chiller

44 Siloxane Removal Technologies Fixed Bed Activated Carbon Media Coal Based Coconut Shell Regenerable System

45 Fixed Bed Activated Carbon Media Process Carbon media Type is determined based on siloxane levels Biogas with Siloxanes H 2 S has been removed Biogas ready for use

46 Siloxane Damaged Piston

47 Waukesha APG 1000 Standard Package Key Components Optional Hydrogen Sulfide Removal Gas Compression/Moisture Removal Optional Siloxane Removal Glycol Chiller Electrical Control Panel

48 Waukesha APG 1000 Standard Package Siloxane Removal Electrical Control Panel Hydrogen Sulfide Removal Glycol Chiller Gas Compression/ Moisture Removal

49 Typical Completed Installation

50 TEST AND TREAT YOUR BIOGAS!

51 Promoting the Anaerobic Digestion and Biogas Industries Clean Cycle heat to power generator Benefits One unit generates up to 125kW of electricity from a heat source Heat is the only input; no additional fuel required or emissions generated Low maintenance: magnetic bearing generator, no lubricants, no overhauls Minimal operation required: automatically load follows heat source including start & stop Electricity generated at power factor of 1 Specifications Power Heat Inputs Min. Input Temp Dimensions up to 125kWe gross ~980kWth (3.34 MBtu/hr) 121 C (250 F) 200 x 285 x 117cm 79 x 112 x 46in

52 Promoting the Anaerobic Digestion and Biogas Industries Organic Rankine Cycle: how it works Clean Cycle TM technology is based on the Organic Rankine Cycle (ORC), which utilizes an organic working fluid with a lower boiling point than water to generate electrical power from heat The cycle is closed loop there is no combustion and no emissions Heat Source Recip Engines Microturbines Biomass Boilers Other / Industry

53 Promoting the Anaerobic Digestion and Biogas Industries Clean Cycle increases engine output Engine Heat exchangers Clean Cycle Condenser Benefits of a Clean Cycle installation on an engine: Increases total installation electrical output by up to 10% Increases total system electrical efficiency by up to 5% Very low OpEx: no fuel, no major overhauls, manned supervision not required

54 Anatomy of a Clean Cycle installation Promoting the Anaerobic Digestion and Biogas Industries Condenser Reciprocating engine Hot water loop Exhaust gas heat exchanger Clean Cycle Clean Cycle skid represents ~40% of installation Modular, turnkey system (20ft container) available

55 Promoting the Anaerobic Digestion and Biogas Industries Example engine installations UK Landfill 2 J320 engines Italy Landfill gas 2 J320 engines Czech Republic Biogas J420 engine Austria Natural gas J412 engine Ocala FL, USA Landfill Gas Cat 3520 Slovenia 2 biogas plants 1 biodiesel recip Israel Landfill Gas 2 J320 engines Germany Biogas J416 Engine Rules of thumb ~900kWth runs the Clean Cycle at full load, so that s a 1 1.5MW engine Heat sources from multiple engines can be combined to get more heat input, if needed Multiple Clean Cycle generators can run on a single heat source, if enough heat is available Clean Cycle follows the heat source if it fluctuates, turns off, or on

56 Promoting the Anaerobic Digestion and Biogas Industries The Clean Cycle advantage Proven Fleet of ORC s in operation in countries across the globe 110,000+ operating hours Leverage in house engine knowledge and compatibility Simple, low maintenance Proprietary technology enables No gearbox No external seals No lubrication Non contact magnetic bearings Variable speed and power follows the heat source Power factor of 1 makes using or selling electricity easier Integrated Power Module

57 Questions Ask questions using the Questions Panel on the right side of your screen. All questions and comments will be recorded and incorporated in the webinar summary report. Also, please take a few moments to answer the survey questions.

58 More Information This Webinar will be available by Monday, June 18 Sign up to receive ABC news at on our website,. Consider Joining ABC Receive regulatory and policy intelligence Connect with other biogas and anaerobic digestion leaders Support the industry s growth and outreach

59 Thank You Paul Greene, ABC Chairman (518) Patrick Serfass, ABC Executive Director (202)