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Renew EcoU. UWGB Capstone 2008. Sustainability Initiatives at Eco U. Reducing UWGB's Carbon Footprint Reducing UWGB's Stormwater Impact. The Project: Sustainability Initiatives at Eco U. Presentation Outline. Introduction Reducing UWGB’s Carbon Footprint Background

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UWGB Capstone 2008

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Renew EcoU

UWGB Capstone 2008

Sustainability Initiatives at Eco U

Reducing UWGB's

Carbon Footprint

Reducing UWGB's

Stormwater Impact

The Project: Sustainability Initiatives at Eco U

Presentation Outline

  • Introduction

  • Reducing UWGB’s Carbon Footprint

    • Background

    • Emissions Inventory

    • Potential Solutions

    • Education & Outreach

  • Reducing UWGB’s Stormwater Impact

    • Background / Education & Outreach

    • Green Roof Options

    • Stormwater Modeling

  • Concluding Remarks

Reducing UWGB’s Carbon and Energy FootprintsLisa Ashenbrenner

“The time for delay is over, the time for denial is over.”

President Elect Barak Obama on climate change.

December 9, 2008

Governor Doyle challenged four universities in the UW system to achieve energy independence by 2012

UW-River Falls

UW-Steven's Point


UW-Green Bay

Governor's Challenge:

Signed: Chancellor Bruce Shepard September 2007

Goal: Campuses across the nation become carbon neutral

Reason: Prevent catastrophic climate change

Role of universities as community leaders and role models

American College and University Presidents Climate Commitment (ACUPCC)

Designate an organizational structure to develop and implement the climate action plan

Complete an emissions inventory

Write a climate action plan to achieve neutrality

Take two immediate steps to reduce emissions

Integrate sustainability into the curriculum and other educational efforts

Make the plan, inventory, and reports publicly available

ACUPCC Framework

Signed ACUPCC September 2007

Organizational structure: Sustainability Committee established 2007

2007 Capstone class calculated an initial carbon inventory and laid groundwork for gathering carbon calculator data

First tangible action completed: U-Pass

Where we are now

Complete and submit an emission inventory

Provide recommendations for the action plan:

- Energy efficiency

- Renewable resource use

- Organizational structure

- Educational activities

Initiate educational efforts

Capstone Goals


  • Organizational Structure

  • Baseline Emissions Inventory

  • Tangible Actions -

  • Climate Action Plan -

    • Education & Outreach

  • Reporting

Organizational Structure

Emissions InventoryAndrew Mckenna-FosterAngela PierceMolly Collard

Inventorying Emissions

Metric Tons eCO2 (Carbon dioxide equivalent) = Carbon Footprint

Emissions of CO2, N2O, and CH4

Scope 1

Scope 2

Scope 3


Onsite Emissions

Purchased Energy

All Other Emissions

Anything that reduces emissions or their impacts

Campus and Residence Heating

Purchase Electricity

Air and Bus Travel and commuting




Forest Preservation

Campus Vehicles

Paper Purchasing

Green Electric Purchasing

Fertilizers etc.

Waste Disposal

Wastewater Treatment

Electricity, Fuel

Gathering Information

Everything Else

Shorewood Golf Course

Requested Annual Reports

Residence Life

Paper Purchasing

Student Union.

Sustainability Committee

Purchasing Dept.

Solid Waste Disposal

Bus Companies

Campus Controller

Travel Agencies

To Calculator

Facilities Management

The Calculator

Clean-Air Cool-Planet Campus Carbon Calculator version 6.


Total Emissions

  • Total Emissions = 33,786 MT eCO2

  • Emissions by scope:

Net Emissions

  • Offsets = 2,884 MT eCO2

  • Net Emissions = 30,989 MT eCO2

2008 Detail


Natural Gas


Purchased Electricity

How do we compare?

Divide Net Emissions by number of students

Reports available at: Association for the Advancement of Sustainability in Higher Education



  • UWGB staff was extremely helpful gather data and giving advice:

  • Facilities Management and Planning: Chris Hatfield (Director), Jason Willard

  • Purchasing Department: Linda Dupuis (Director), Marie Lyon Helmke, Diane Eastman

  • Campus Controller: Kelly Franz

  • Resident’s Life: Steve Gering (Assistant Director of Facilities Operations)

  • Shorewood Golf Course and U. Union: Rick Warpinski (Director), Nathan Rusch

  • Human Resources: Sheryl Van Gruensven (Director)

    Additionally many people helped from outside UWGB:

  • Russ Hardwick Green Bay Water Utility

  • Chambers Travel, Fox World Travel, Worldtek, and Wisconsin Air Services

    Thanks also to:

  • Professors Patricia Terry and Laurel Phoenix

Potential SolutionsBenjamin NuszMolly CollardJennyHeinzen

Energy Efficiency & Renewable Energy

  • Are Energy Efficiency and Renewable Energy strategies sufficient to meet emissions reduction goals?

    • Big picture instead of individual installations

    • Energy generation over demonstration projects

    • Long term implementation strategies

Energy Efficiency






Energy Efficiency & Conservation

  • Central Plant

    • Boiler control

    • Chiller optimization

    • Boiler blowdown

    • Thermal storage

    • Variable primary flow

  • Academic Buildings

    • Windows

    • Variable frequency drives

    • Fluorescent lights

    • Efficient motors

    • Occupancy schedule

    • Fume hood management

    • Sub-metering

    • Demand control ventilation

    • Energy recovery ventilation

Energy Efficiency & Conservation

  • Stanley Consultants 2008 Energy Audit

    • Used eQuest building simulations for MAC Hall and Cofrin Library

    • Determined a base rate of energy reductions on a per square foot basis

    • Used rate to estimate campus-wide implementation


  • 2008 Non-residential Photovoltaic site assessment by Full Spectrum Solar

    • Modeled 5kW, 20kW and 50kW

    • Didn’t address the total capacity of the campus

  • Capstone Campus-wide site assessment

    • All areas were evaluated using Solar Pathfinder site assessment tool

    • Generated and plotted GPS coordinates

    • Used arcGIS to construct polygons and calculate areas

    • Surveyed 48 PV collector models to determine Watts/s.f.

    • Calculated installation density for appropriate sun angles and annual solar radiation



  • Multicrystalline collectors

    • 11.9 Watts/s.f.

  • 30 degree mounting angle

    • 1206 kWh/kW(rated)

  • Density Ratio of 0.27

    • Full solar exposure

If all of the available land areas were covered with PV, the system would annually produce 17,972,912 kWh or 91% of the total electrical load.

At $6,700/kW the system would cost $99,849,000

Simple payback of 61.7 years

Wind Power

  • Suggestions from 2005 site assessment:

    • Three sites

    • 10 kW – 660 kW machines

  • This report recommends:

    • Two sites

    • 1.5 MW or larger machines

Investment & Production

  • UWGB has an average wind speed of 14 mph @ 265’

  • The GE 1.5 MW turbine produces ~3,500,000 kWh each year at that velocity

  • UWGB bought 19,842,000 kWh in 07-08 @ 6.5¢/kWh

  • Each turbine will save ~$225,000 on annual electrical bill (avoided cost)

Biomass and Biofuels

  • Biofuels

    • B20 testing underway

    • Future ratio increases possible

    • Cheapest in terms of capitol, but highest in terms of operating costs

  • Biomass

    • 2006 Capstone recommendation of wood boilers for residence halls

    • 20 individual boilers for 26 buildings

    • Future potential to install cogeneration


Projections - Aggressive

Emissions without reductions

Education & OutreachJuny LeeJennifer Goyette

Addressing outreach and education

Short term goals

  • Streamline the Sustainability Committee website to provide easy access information regarding UWGB and its efforts to be climate friendly and sustainable

    • Refresh links, update content, and advertise sustainablegb webpage

    • UWGB website tech is still working on updating it

  • Design informative posters for use within campus buildings and along Cofrin Memorial Arboretum trail

    • Educate public, students, and staff RE: UWGB sustainability initiatives

    • Affirm identity as an environmental university by reclaiming and using the title EcoU

    • Focus on broad spectrum of activities within UWGB that contribute to being an Eco campus

    • Explore a current issue and how it affects UWGB

Poster Themes in the Arboretum


Implementing Sustainable Energy:

UWGB potential

Mahon Woods / Forest Dynamic Plot

UWGB’s natural communities:

Green Bay’s bay / invasive species/ succession plots / Prairie

Current Issues: Wind Energy and Bats

Addressing outreach and education

Long term goals

  • Hire a permanent full-time sustainability coordinator

  • Interdepartmental collaboration on sustainability initiatives and increase communication between faculty members in the implementation of sustainability efforts

    • By collaborating with one another, faculty can extend what they learn into their lecture coursework and/or department committee meetings

  • Require environmental science and sustainability coursework for all students regardless of their major

    • Move away from traditional style of teaching

      • Coursework with project-based classes that allow students with hands on experience

    • Increase students’ awareness on sustainability issues by personalizing the experiences

      • If students were made aware of their “ecological address”, they would be more actively involved in the practice of environmentally sustainable living


  • Focus on curriculum

  • Increase awareness of sustainability initiatives

  • Create an institutional culture of sustainability

  • Encourage change in behavior

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