carbon emissions from the university of minnesota buildings & facilities andrew edwins david...
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Carbon Emissions from the University of Minnesota
Buildings & FacilitiesAndrew EdwinsDavid Grandall
Luke HollenkampPatrick SantelliAmy Scheller
President’s Climate Commitment
Initiate the development of a comprehensive plan to achieve climate neutrality as soon as possible
Complete a Greenhouse Gas inventory by January 2009 Within one year of signing this document, complete a comprehensive
inventory of all greenhouse gas emissions (including emissions from electricity, heating, commuting, and air travel) and update the inventory every other year thereafter.
Develop an Action Plan by January 2010 Within two months of signing this document, create institutional
structures to guide the development and implementation of the plan. Within two years of signing this document, develop an institutional
action plan for becoming climate neutral
Initiate two or more items from a list of tangible actions to reduce greenhouse gases while the more comprehensive plan is being developed
TC Campus Energy Diagram
Campus BuildingsXcel Power Plants
Southeast Steam Plant
FUEL
FUELSTEAM
ELECTRICITY
ELECTRICITY
Fuel Inputs – Xcel Energy
9% Renewable Energy in 2007Increased Renewable Mandates
15% 2010 18% 2012 25% 2016 30% 2020
Fuel Inputs – Southeast Steam Plant
Varying Fuel Inputs Coal Natural Gas Oats Hulls w/ Coal
Past CO2 Emissions Trend
14.5% Reduction
Future Consumption & Emissions
Predicted CO2 Emissions Trend
12.1% Reduction
CO2 Reduction Policies
Demand Side New Buildings
LEED Design ENERGY STAR Design
Existing Buildings Retrocommissioning
Behavioral Changes
Supply Side Renewable Energy
Wind
Demand Side – New Buildings (LEED)
Leadership in Energy and Environmental Design (LEED) by USGBCAchieve LEED-NC Silver rating
Focus on Energy Reduction points
Beginning in 2009, U of M has 1% additional square footage per year as Silver12% Silver buildings by 2020 lowers CO2 emissions by 3.84%Costs $8,692,458 for each 1% CO2 reduction in 2009 (*could have no cost)
Demand Side – New Buildings (ENERGY STAR)
ENERGY STAR building program by US EPA & US DOEENERGY STAR buildings perform better than 75% of peers
On average, consume 40% less energy and emit 35% less CO2
Beginning in 2009, U of M has 1% additional square footage per year as ENERGY STAR12% ENERGY STAR buildings by 2020 lowers CO2 emissions by 4.20%Negligible cost for each 1% CO2 reduction in 2009
Demand Side – Existing Buildings (Retrocommissioning)
Reevaluating existing building systems for functionality and efficiency.Annually assess 20% of buildings; retrocommission 10% All campus buildings are evaluated every five years.By 2020, lowered CO2 emissions by 4.50%$1,000,000 annual expenditure is replenished by decreased utility costs
Demand Side - Behavioral
Oberlin College Real time metering
32% Reduction 2 – 3 year payback
General Recommendations Alliance to Save Energy’s Green Campus Program Energy Star for Higher Education Association for the Advancement of
Sustainability in Higher Education
Purchase additional wind power through Xcel’s Windsource program$0.71/100kWh during first half of 2008Beginning in 2009, U of M purchases 1% additional consumption per year12% Windsource by 2020 lowers CO2 emissions by 7.74%Costs $46,814 for each 1% CO2 reduction in 2009Xcel’s capacity is an issue
Supply Side – Renewable Energy (Wind)
Policy Effects
Policy Effects
Retrocomm -4.50%
LEED Silver -3.84%
Windsource -7.74%
ENERGY STAR -4.20%