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Alliant Energy Corporation Manager of Biofuels Development Bill Johnson's presentation from the Homegrown Energy: Heat & Power Projects breakout session at the 2010 Wisconsin Bioenergy Summit
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Bio Energy Options
Bill Johnson Manager-Biofuels Development
Alliant Energy
Sustaining Energy into the Future
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Alliant Energy Biofuel Experience 1995-2006
• Ottumwa, IA (southern Iowa) 725 mW base load pulverized (PBR) coal generating station
• Co-fired switchgrass at 5% • Studied grass production cultural practices, fuel
processing, fuel handling, boiler chemistry, ash and emission impacts…
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Support Harvest, Storage, Transportation
& Processing Research
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Basic Biomass Fuel Supply Chain
Farmer Forester Industrial
Aggregator/Processor
End User
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Renewable Resources Inventory and Potential
• Forest Products – Wood forest
residues – Dedicated forest
fuel crops (Poplar, Willow, …)
• Corn Stover
• Grasses
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• Document costs associated with harvesting woody biomass in Southwest Wisconsin
• Determine volumes of material by slope & mgt. prescription per acre
• Targeting underutilized, low quality material
True Costs of Harvesting Woody Biomass in Driftless Area
In collaboration with SW Badger RC&D and Driftless Area Initiative
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Understanding Corn Stover as a Fuel
Soil Stewardship Issues – Fertility – Erosion – Compaction – Carbon/tilth
Harvesting and Storage Issues – Limited harvest window – Harvest technology selection/development – Where & how to store – Relatively low yield
Fuel Characteristics – Moisture content – Chemistry – Density – Ash
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Grass Research & Demonstration Alternative Biofuels
Partnering with SW Badger RC&D, UW-Madison, Ceres, Mendel, Pheasants Forever…
Switch Grass Sorghum Miscanthus
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Methane Gas
• Livestock Manure – Generates electricity – Reduces odor – Prevents methane gas
from escaping into the atmosphere
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Six farm digesters in service territory and one
community (Dane Co.) digester
under development (3.5 mW).
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Landfill Gas (19.6 mW)
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Glacier Ridge Landfill
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Wastewater Treatment
• Equipment used: – 30 kw Capstone
microturbines
• Installed several systems in MN & WI using microturbines, using of turbine heat to promote organic degradation
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What Next?
Ford 1998 CNG / Gasoline Pickup Truck Purchased By Dane County February 22, 2010
Transportation Fuel
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Transportation Gas Demonstration Collaboration with Dane County, Cornerstone Energy, Unison & MATC
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Bill Johnson Manager, Bio Fuels Development
Alliant Energy 2777 Columbia Dr.
Portage, WI
(608) 742-0824 [email protected]
Contact
