University of Iowa Biomass Fuel Project. Ingrid Gronstal Anderson, J.D. UI Utilities & Energy Management

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1 University of Iowa Biomass Fuel Project Ingrid Gronstal Anderson, J.D. UI Utilities & Energy Management

2 District Energy Combined Heat & Power (CHP) What is District Energy? Source: IDEA Website/Smarttools

3 District UI

4 Reliability focused Renewables focused

5 2020 Vision - The University of Iowa's Sustainability Targets 1. Achieve Net-negative Energy Growth Consume less energy on campus in 2020 than consumed in 2010 despite projected growth 2. Green Our Energy Portfolio Achieve the goal of 40% renewable energy consumption on the campus by

6 How much energy does the UI consume compared to my house? UI annual energy use is equal to: 3,500 homes 35,000 homes 350,000 homes 1,000,000 homes

7 How much energy does the UI consume compared to my house? UI annual energy use is equal to: 3,500 homes 35,000 homes 350,000 homes 1,000,000 homes

8 Annual energy use at UI is: The same energy use as all of the homes in Iowa City

9 Why doesn t the UI convert to solar?

10 UI analysis of solar Solar panels on every campus rooftop would provide 12.8% of the energy needs for the UI campus. Solar does not have the scale to provide 40% renewables.

11 What about wind? If a wind farm was built on the UI grounds, the electricity generated would provide 7.7% of the energy needs for the campus. Distant, off-site generation adds significant cost & supply risk

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13 UI analysis of biomass Displaces coal UI Power Plant currently purchases approximately 2400 truckloads of coal each year Displace ~4 tons of coal per planted acre Funding requirements Does not require additional up-front capital Goal is to minimize fuel budget impact

14 Residential Energy Consumption Survey 115 MMBtu per year

15 4,000,000 MMBtu per year

16 4,000,000 MMBtu per year

17 Benefits of Biomass at UI

18 4,000,000 MMBtu per year What is the UI annual energy budget (fuel and electricity) for ? $1 Million $30 Million $200 Million $3 Billion

19 4,000,000 MMBtu per year What is the UI annual energy budget (fuel and electricity) for ? $1 Million $30 Million $200 Million $3 Billion

20 Biomass Fuel Portfolio Industrial byproducts: Current: oat hulls Future: energy pellets, cardboard recycling sludge, furniture scrap Wood chips: Current/past: timber stand improvement, pallet remanufacture Future: opportunity wood, short rotation woody crops Energy grasses: Current development: Miscanthus Future: prairie and switchgrass sustainability.uiowa.edu/initiatives/biomas s-fuel-project/

21 Industrial By-Product: Oat Hulls UI has been burning oat hulls for energy since 2003 Sourced from Quaker Oats in Cedar Rapids, IA 5-yr contract for 40,000 tpy Displaces roughly 1000 truckloads of coal/year sustainability.uiowa.edu/initiatives/biomas s-fuel-project/

22 Energy Pellets Allow existing equipment to be used without modification Make use of non-recyclable manufacturing byproducts Partnering with UI Chemistry Department to study emissions

23 Wood Chips sustainability.uiowa.edu/initiatives/biomas s-fuel-project/

24 Current wood chip supply Scrap from pallet manufacturing Over 150 truckloads of wood chips used in 2015 Wood chips displace 100 truckloads of coal at the UI Power Plant

25 Energy Grass Miscanthus x giganteus 500 acres growing in eastern Iowa Up to 300 acres will be planted spring 2017 Goal of 2500 total acres Partnership with ISU, Dr. Emily Heaton sustainability.uiowa.edu/initiatives/biomass-fuel-project/

26 117 MMBtu per year How many acres of Miscanthus would you need to provide energy for the average midwest home for one year? Less than 1 acre 10 acres 100 acres 1000 acres

27 117 MMBtu per year How many acres of Miscanthus would you need to provide energy for the average midwest home for one year? Less than 1 acre 10 acres 100 acres 1000 acres 0.75 acres

28 PROFITABILTY ~15% of land within Iowa fields not profitable in corn ENVIRONMENT Planting ~15% of land within Iowa fields to diverse perennials provides disproportionate environmental benefit ENERGY Planting ~15% of land within Iowa fields to perennial high-yielding energy crops provides enough biomass Slide courtesy of Dr. Emily Heaton, Iowa State University sustainability.uiowa.edu/initiatives/biomas s-fuel-project/

29 Slide courtesy of Dr. Lisa Schulte Moore, Iowa State University Lisa Schulte Moore, Matt Helmers, Pauline Drobney, Mary Harris, Matt Liebman, Randy Kolka, Jeri Neal J. Arbuckle, Heidi Asbjornsen, Steve Bradbury, Cindy Cambardella, Mike Castellano, Rick Cruse, Bob Klaver, Laura Jackson, Mark Johnson, Matt O Neal, Mike Rentz, Mark Tomer, John Tyndall, John Westra Brian Gelder, Maged Noshi, Tim Youngquist, Dave Williams, Chris Witte, Xiaobo Zhou Rachael Cox, Julia Dale, Javed Iqbal, Jose Gutierrez-Lopez, Virginia Hernandez-Santana, Rene Hessel, Sarah Hirsh, Drake Larsen, Delise Lockett, Anna MacDonald, Vilma Mateos-Remigio, David Mitchell, Amy Moorhouse, Julie Mueller, Matt Stephenson, Marlín Pérez-Suárez, Tomorra Smith Committee on Agricultural Development

30 Photo credit: Jose Gutierrez Science-based Trials of Rowcrops Integrated with Prairie Strips Slide courtesy of Matt Helmers, Iowa State University. (Helmers, M.J., et al., Sediment removal by perennial filter strips in row-cropped ephemeral watersheds. Journal of Environmental Quality, (5): p )

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33 Current Status Increasing our footprint > 500 acres planted in MxG, >800 under long-term lease 2017 Harvest poised to start Limited Harvest due to winter/boiler downtime 2 fields Storage & densification trials On-site blending trials Fluidized Bed Boiler delivery system trials

34 Thank you