Facilities and Environment Committee

Duke University GHG Update/CAP Progress

ReportMay 13, 2011

Facilities and Environment Committee

President’s Climate Commitment, Climate Action Plan and Greenhouse Gas Inventory Update

Sustainability

Facilities and Environment Committee

2010 GHG Inventory Update

• GHG Inventory– Total Duke broken down into

• University = University/School of Med./School of Nursing

• Health System contiguous to Durham campus

• CAP target – carbon neutral by 2024– Only applies to University– Did not include Health System in CAP target

Facilities and Environment Committee

2010 GHG Update

2007 levels = 445,561

2008 levels = 448,754

Baseline

0.7%

2009 levels = 419,706

2010 levels = 406,109

↓5.8%

↓8.9%

1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 20100

50,000

100,000

150,000

200,000

250,000

300,000

350,000

400,000

450,000

500,000

Total Health System University

MTC

O2e

Facilities and Environment Committee

2010 GHG Update - University

2007 Baseline 2008 = 0% 2009 = ↓5% 2010 = ↓9%

~30,000 MTeCO2 reduced = 5240 cars removed from the road for year 3.75 more Duke Forests

2007 2008 2009 2010200,000

220,000

240,000

260,000

280,000

300,000

320,000

340,000

360,000

380,000

400,000

338,828 338,883

322,355

308,310

MT

CO

2e

Facilities and Environment Committee

• Trends– Campus electricity use going down– Duke Energy emissions factors lower than

originally projected – Reduction of coal in steam production – People driving further for their commute but using

more alternatives

2010 GHG Update - University

Facilities and Environment Committee

Duke Energy Carbon Intensity2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026

2027

2028

2029

2030

2031

2032

2033

2034

2035

2036

2037

2038

2039

2040

2041

2042

2043

2044

2045

2046

2047

2048

2049

2050

0.00

0.10

0.20

0.30

0.40

0.50

0.60

Included in CAP Projections

2010 Revised Projections

To

ns/M

WH

Coal 46.68%

Nuclear 51.20%

Hydro 1.40%Oil & Gas 0.71%Renewables 0.01%

2010 Duke Energy Fuel Mix

Facilities and Environment Committee

Compared to CAP projections - University

• University emissions are going down since 2008 – 12% below BAU projections in 2010, Little higher than CAP target ~ 2%

2007 2008 2009 2010 250,000

270,000

290,000

310,000

330,000

350,000

370,000

390,000

2010 Actuals BAU CAP

MT

CO

2e

9% below 2007 baseline12.5% below Business as Usual

Facilities and Environment Committee

Projections Compared to CAP - University

2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 150,000

200,000

250,000

300,000

350,000

400,000

308,310

352,245

300,555

2010 Actuals BAU CAP

MT

CO

2e

Linear Projection to 2024

Facilities and Environment Committee

GHG/CAP Update Summary• Emissions moving in the right direction• Economic conditions have helped this trend• 2010 data does not reflect full implementation of initial CAP

recommendations• East campus steam plant • LEED + policy• Energy conservation • Transportation demand management efforts

• Duke Energy is still large unknown• Thinking about how to best revise CAP projections based on updated

information and still be able to measure progress

Facilities and Environment Committee

Next Steps

• Additional GHG Inventory analysis– Review projected vs. actual financial impact– Further detailed analysis of specific measures and

impact– Develop schedule for reviewing/revising CAP projections

• Sustainability Strategic Plan– Building on CAP - Food, recycling/waste, green

purchasing, water, land use– CSC focus next year on developing targets

• Offsets

Facilities and Environment Committee

CARBON OFFSETS - First Offsets Project Operational May 2011: Duke University-Duke Energy Swine Waste-to-Energy Partnership

•Yadkin County system will capture methane and generate electricity on the order of ~5,000 CO2e tons and ~500,000 kWh (~500 MWh) of electricity annually; represents ~2.7% of Duke’s annual offsets needs•System meets stringent environmental performance standards to substantially eliminate nutrients, ammonia, pathogens, odors and metals and stop discharge of waste to surface and groundwater•Offsets Initiative seeing interest in replicating system; project considered model pilot by federal and state leaders

Digester prior to cover installation (April 13, 2011)

Jet Aeration System for Nitrogen Treatment (April 13, 2011)

Facilities and Environment Committee