Wednesday, April 18 — Track 2
|Wednesday, April 18, 2012 | | TRACK 2 || 10:15 AM — 12:00 PM|
Anaerobic Digestion Industry ? Global, National Trends
Tracking Anaerobic Digestion Of Municipal Organics In Europe, U.S.
Luc de Baere and Norma McDonald, OWS, Inc.
Biomass And Anaerobic Digestion CHP: Lessons From The Northwest
Dave Sjoding, Northwest Clean Energy Application Center
The Northwest has been steadily developing wood waste and anaerobic digestion CHP systems. This presentation provides perspectives, policy goal alternatives, lessons learned, excellent project design tips, market development. Some lessons were learned the hard way (pitfalls to avoid). Both wood waste and anaerobic digestion systems are explored. Maximizing revenue streams will be a particular focus.
Wastewater Treatment Plant Biogas To CHP And CNG Vehicle Fuel
K. Henn, F. Ferreira, J. Coombe and C. Egigian-Nichols, Tetra Tech, Inc.
High Solids AD At Vertical Urban Farm
Tom Gratz, EISENMANN Corporation
The author will present a case study of implementing an anaerobic digestion system into an urban vertical farming operation in the Chicago stockyards. The presentation will cover how the facility will leverage high solids anaerobic digestion for diversion of organic waste along with proven urban farming techniques to become a net zero energy vertical farm. The facility aims to divert more than 6,500 tons of organic waste from landfills each year to meet all of its heat and power needs. Some of the waste streams will include spent brewers grains, expired produce and groceries as well as FOG and other industrial waste streams. An update on the status of the project and insights on some of the initial development challenges and permitting will be addressed.
|Wednesday, April 18, 2012 | | TRACK 2 || 1:30 PM — 3:15 PM|
Incentives, Financing For Digester Facilities
The State Of State Incentives For Digester Projects
Matt Krumenauer, Oregon Department of Energy
Biodigester Financial Feasibility Assessment
Nora Lake-Brown, David Paul Rosen & Associates
Six dairy-related digesters developed between 2006 and 2011 are operating in Washington State, with two others in construction and at least one more under consideration. In additional to private loan financing, these projects have used a range of subsidized loan and grant sources, including the State Energy Program (SEP), the USDA Rural Energy Development Program (REAP), the U.S. Department of Energy, U.S Department of Treasury grants in lieu of the 30 percent Investment Tax Credit, and USDA loan guarantees. With FY2012 funding for the REAP program cut to $25.4 million, down from $70 million in FY2011, and most of the other sources no longer available, competition for available subsidies will be even greater than it has been in recent years. For long-term viability and growth of the industry, it will be imperative for digester development to move toward a market-based model.
This presentation discusses a financial feasibility study of digester development scenarios using a market-based model. An analysis of two prototypical dairy digester projects, sized to use manure from 2,000 cows and 750 cows, respectively, was conducted.
Life After Section 1603
Nadeem Afghan, BIOFerm Energy Systems
Many renewable energy projects in the US have been reliant on the federal 30% grant from Section 1603 of the American Recovery and Reinvestment Act. This presentation will explore the future of biogas production if/when the grant is no longer available (currently the begin construction deadline is set to expire 12/31/11). It is possible that there may be a fundamental shift from utilizing biogas in a CHP for electricity and heat to other options such as CNG for vehicle fuel or pipeline quality natural gas substitute. This presentation will compare biogas utilization options in the current economic and political climate and provide a balanced view of options going forward.
Developing AD Projects From Design-Build Perspective
Catherine Lewis, Entec Biogas USA
Anaerobic digestion (AD) is a proven solution for converting organic waste into energy and valuable byproducts. The presentation will use lessons learned from projects developed in the North American market and projects completed in the European market to walk through the development steps and project challenges from an EPC (design builder) perspective.
There are approximately 10 steps for developing an anaerobic digestion project; 1) determine the project basis, 2) define the project scope leading to an RFQ and RFP, 3) review and select the technology, 4) start design, 5) receive final project price, 6) procure equipment, 7) obtain permits, 8) construction, 9) commissioning, 10) substantial completion. Each step has specific requirements for anaerobic digestion and is explained using real project examples. The main challenges for developing an anaerobic digestion project are location, community education, permitting, and economics and financing being the biggest challenge. All of these challenges can be overcome with the right development strategy and team.
|Wednesday, April 18, 2012 | | TRACK 2 || 4:00 PM — 5:30 PM|
Commercial Anaerobic Digester Developments
Stage Gate Approach To Codigester Project
Dean Foor, EC Oregon, LLC
While food processing residues, manures, and municipal wastes are being used as anaerobic digester feedstock in various scenarios throughout the world, it is by no means standard business practice. Biogas plants do not lend themselves to uniform application; consideration must be given to the type and quality of feedstock. Each digester system must be designed to meet the characteristics of the situation. The operational parameters of the facility determine the appropriate conversion technology, digester loading rate, biogas production and energy utilization specifics. Co-digestion substrate availability, heat recovery options and utility interconnection scenarios are also site-dependent. Further, state/regional incentives, infrastructure, regulations are also highly variable across the United States.
Feasibility Of AD For SSO In Northern California
XiGuang Chen, URS Corporation
The feasibility of developing a large anaerobic digestion facility for converting food wastes and other organic wastes to renewable energy in Northern California was investigated in this study. Although large amounts of organic waste appropriate for anaerobic digestion are generated in the region, few such streams are currently utilized for energy production. Three design scenarios for the proposed facility were assessed in this study: 500, 1,000, and 1,500 wet tons per day, assumed to consist of 70% food wastes and 30% green waste. By evaluating three transportation models including truck, rail and barge in this study, barge or rail was shown to be significantly more cost efficient than trucking food waste to the proposed facility site. Greenhouse Gas (GHG) emission was estimated for the proposed facility, and compared to the baseline scenario of sending wastes to landfill. Significant GHG emission reduction, ranging from 158 tons per day to 558 tons per day, was found in all cases. The impact on NOX emissions, however, is slightly increased from baseline and emission control technologies should be considered. Economic analysis found the Cost of Electricity (COE) for the 500, 1,000, and 1,500 wet tons per day scenarios to be 256, 193, and 164 $/MWh for Independent Power Producer (IPP) doing Combined Heat and Power (CHP), 276, 210, and 178 $/MWh for utilities doing CHP, and 192, 149, and 128 $/MWh for utilities doing pipeline injection, respectively, for the proposed facility.
Lessons Learned At Regional Food Waste AD Plant
John McNamara, Environ Strategy
Presentation will discuss key lessons from the startup of a regional food waste anaerobic digestion facility in Chino, California. The following will be included: Permitting hurdles and resolutions; Phased start up-best path forward with liquid food waste; Identification of preferred solid food waste sources; Pretreatment technology evaluation and implementation.
Mixed Organics Digester Project Advances
Dale Richwine, Columbia Biogas
Columbia Biogas is in the final stages of design of a food waste digestion facility that will be constructed in 2012/2013 to process a combination of mixed organic waste generated in Portland, Oregon. Phase I of the facility will have the capacity to process 100,000 wet tons of food waste per year with a build-out capacity of 142,000 wet tons per year with the addition of an additional fermenter.
This presentation will discuss various issues that were addressed in the facility design of the receiving, processing and treatment of the food waste as well as the digestate treatment systems. The project has many unique elements that were necessary to construct and operate the facility in an urban setting. Most notably is the enclosed waste receiving facility, the digestate treatment system and the facility site plan. The project team worked with the local neighborhoods to develop a "Good Neighbor Plan" that outlined specific requirements that must be met by the facility.