Case Study Slides

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Case Study Slides

• These slides contain photos and basic information
  from the Woody Biomass Desk Guide and Toolkit
  case studies. You can adapt them to meet your
  needs and use them in your presentations.

Note Reference to commercial products or trade
names is made with the understanding that no
discrimination is intended and no endorsement
implied.
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Fuels for Schools Warms and Cools a Community

• Partnership b/t public and USDA-Forest Service
• Help schools and other facilities reduce heating
  costs
• Promote biomass heating systems
• Increasing forest health through fuels reduction
• Nearby national forests provide waste wood for
  fuel

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Fuels for Schools Warms and Cools a Community
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Fuels for Schools Warms and Cools a Community

• Fuels reduction

instead of
Putting waste wood to work equals economic
benefit for
local communities and more green energy.
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BioOil Hits the Midwest

• Dynamotive Energy Systems Corporation
• Willow Springs, MO
• modular, second-generation biomass-to-biofuel
• fast pyrolysis process

• 200 tons of residue 34,000 gallons of BioOil
• Primarily uses local sawdust but can use logging
  residues
• BioOil is a price-competitive replacement for
  heating oils 2 and 6 light industrial fuels.

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Biomass Powers Texas

• Aspen Power, LLC
• East Texas (Lufkin, TX)
• 50 MW direct-fired Stoker technology
• Woody biomass from logging debris, public service
  wood waste, chipping, and mill waste
• approximately 1,500 tons of woody biomass per
  day
• 405 jobs

NEEDS IMAGE
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Woody Biomass to Pellets

• Appling County Pellets, LLC
• Located in Eastern Georgia
• Dry wood shavings or pulverized wood material
  on-site
• Produce wood pellets
• International markets

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Community Involvement in Developing a
Wood-powered Utility

• McNeil Generating Station in Burlington, Vermont
• Burns wood (predominantly) and natural gas
• Community input was involved in planning process
• Wood is delivered to the station from a remote
  storage site by rail

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Community Involvement in Developing a
Wood-powered Utility
Wood sources 70 from low-quality trees 25
sawmill residues 5 urban wood waste
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Powering the Grid with Waste

• Ridge Generating Station in Auburndale, Florida
• Operating since 1994
• Approx. 45 Megawatts gross capacity
• Part of countys waste-management system

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Powering the Grid with Waste

• Employs forty full-time workers and 10 laborers
• Regional economic impact of 6 million per year
• Fuel sources
• 75 wood waste
• 20 tires
• 5 landfill gas

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Wood and Paper Trim the Energy Bill

• Northwest Missouri State University in Maryville,
  Missouri
• Approx. 6,500 students
• Provides 65 of the heat for 1,700,000 square
  feet of building space
• Annual savings 375,000/year
• Fuel sources
• local sawmill residues
• local paper wastes, which are pelletized by the
  University

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Wood Power Heats a Public School

• Morehead, Kentucky (pop. 6,000)
• Rowan County High School uses 756 tons of sawdust
  each year to heat the 125,000 square-foot school
  and a 60,000 square-foot vocational institute

• Sawdust supplies come from local lumberyards
• Fuel is stored in a 120-ton silo on campus
• Facility saves the school approx. 21,000 per
  year

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Co-firing with Wood and Sugarcane Waste

• 75 Megawatt plant in western Palm Beach County,
  Florida
• Okeelanta Cogeneration Facility, owned by the
  Florida Crystals Company (produces sugar)
• Fuel in sugar season
• 2/3 bagasse (sugarcane waste)
• 1/3 wood
• Fuel out of sugar season
• 1/3 bagasse
• 2/3 wood
• Wood wastes purchased from urban areas

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Bagasse storage
Wood storage
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The Okeelanta facility uses three water-cooled
vibrating grate stoker boilers.
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Co-firing with Wood and Switchgrass

• Gadsden Steam Plant in northeastern Alabama
• Run by Alabama Power, subsidiary of Southern
  Company
• Uses switchgrass from a local farmer and wood
  from forest thinnings, wood processing, and
  harvest residues

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Co-firing with Wood and Switchgrass

• Two 70-Megawatt pulverized coal units
• Unit 1 co-fires coal with sawdust and wood chips
• Unit 2 co-fires coal with switchgrass

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END