Renewable Energy Alternatives · Renewable Energy Initiatives Executive Order 145: Conserve...
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Renewable Energy AlternativesFor Wisconsin
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A significant challenge…
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Renewable Energy InitiativesExecutive Order 145: Conserve Wisconsin• Create high performance building standards • 10% reduction per gross square foot by 2008, and 20% by 2010.
Wisconsin Act 141: Renewable Electrical Energy Goals• 10% renewable by the end of 2007, and 20% by 2011.
Governor’s Pilot Program to go “off the grid” in five years.• Acquire or produce renewable energy equivalent to consumption.
Evaluation criteria• Current fuel mix used in heating/cooling plants; • Existing fuel permits for heating and cooling plants; • Local utility offering a green power purchasing program; • Campus participation in a green power program; and • Support of the campus administration.
Four campuses selected:• UW-Green Bay, UW-Oshkosh, UW-River Falls, and UW-Stevens Point.
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Current UW Green Energy Purchases
Campus Percent Purchased
Annual Cost Funding Source
UW-Green Bay 10% $18,000 Segregated FeesUW-Oshkosh 11% $35,000 Non-student PR
UW-Stevens Point 10% $25,000 Segregated Fees
UW-River Falls Under negotiation
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Green Energy Options
Heating/Cooling plants: renewable fuels
Paper pellets and wood Bio-diesel fuel Biomass gasification reactors
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Green Energy Options
Primary focus is electrical energy
• Annual Average WI home = 8,800 KWH • Pilot project electrical energy goal >86 million KWH • Act 141 20% electrical energy goal > 128 million KWH
• Two sources with the most potential: Purchase green power from state utilitiesGenerate green power from wind tower turbine generators
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Green Energy Costs and Availability
• Green energy is typically purchased at a premium cost of approximately 1¢ per KWH.
• Three campuses may be able to purchase enough green power.
• Some potential funding sourcesagency fundsagency utility appropriationscampus operating budgetssegregated fees, etc.
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Wind Turbine Generators• Provide electrical power directly
to site or generated power can be sold to the local utility
• Tower site selection criteria:Prevailing wind speeds Wind flow obstructions (buildings, trees, etc.) Adequate electrical distribution system (transmission lines)
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A Case Study – Carleton College
• Cost approximately $1,900,000.
• State provides an incentive of $0.015 per KWH for the first 10 years.
• Incentive is added to the $0.033 per KHW income from the utility.
• The project offsets about 40% of the college’s current electrical usage.
• Carleton expects payback in 9 to 11 years.
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A Case Study –Carleton College
Wind tower turbinegenerator installed in 2004.
20-year useful life.
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Turbine and three 135 foot blades atop a 230 foot steel tower.
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Wind Turbine Installation
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1,650 KW turbine produces approximately 4.6 million KWH per year.
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Alliant Energy’s New Bohemia Solar Projectin Cedar Rapids, Iowa
Solar panels produce 7,200 watts of electricity.
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Next Steps
UW System and DOA-Division of State Facilities staff have been meeting with utility providers around the state to learn more about their capabilities and plans.
UW System/DSF mini-summit on November 17th to continue the planning process with emphasis on renewable fuels.
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