Choosing Our Future: Greenhouse Gases or Green Homes

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Choosing Our FutureGreenhouse Gases or Green
Homes?
Rich MacMath Hot Science - Cool Talks Volume 46
Produced by and for the Hot Science Cool Talks
Outreach Lecture Series of the Environmental
Science Institute. We request that the use of
any of these materials include an acknowledgement
of Rich MacMath and the Hot Science Cool Talks
Outreach Lecture Series of the Environmental
Science Institute of the University of Texas at
Austin. We hope you find these materials
educational and enjoyable.
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Choosing Our FutureGreenhouse Gases or Green
Homes?
Choosing Our FutureGreenhouse Gases or Green
Homes?
Rich MacMath Austin Energy Green Building Program
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What is the Human Footprint?
What is the Human Footprint?
A map of human influence on earths land surface
www.wcs.org/sw-high_tech_tools/landscapeecology/hu
manfootprint
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Atlas of the Human Footprint
Atlas of the Human Footprint
83 of worlds land surface under human influence
www.wcs.org/sw-high_tech_tools/landscapeecology/hu
manfootprint
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The Human Footprint Report
The Human Footprint Report
The global extent of the human footprint
suggests that humans are stewards of nature,
whether we like it or not. The long-term impact
of human influence, positive or negative, benign
or catastrophic, depends on our willingness to
shoulder responsibility for our stewardship.
83 of worlds land surface under human influence
www.wcs.org/media/file/human_footprint2.pdf
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The Human Footprint / Atmosphere
The Human Footprint / Atmosphere
6OF
4OF
2OF
http//data.giss.nasa.gov/gistemp/2005
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The Human Footprint / Atmosphere
The Human Footprint / Atmosphere
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The Human Footprint / Atmosphere
The Human Footprint / Atmosphere
Global Distribution of Atmospheric Carbon Dioxide
www.cmdl.noaa.gov
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New Science?
New Science?
1990 First IPCC report concludes there is a
causal relationship between human activities and
global warming. 1988 James Hansen, a leading
NASA scientist, told a U.S. Senate sub-committee
he was 99 certain that global warming was
occurring and that it was linked to fossil fuel
combustion. 1958 Charles Keeling began keeping
CO2 records on the peak of Mauna Loa in Hawaii
(more on this in a moment).
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New Science?
New Science?
1938 Guy Callendar, meteorologist, first to
claim evidence of global warming. 1896 Svante
Arrhenius, Nobel chemist, makes first
quantitative attempt to measure effect of
atmospheric CO2 on global temperatures. 1860
John Tyndall, scientist, measures absorption of
light spectra by CO2 and attributes ice ages to
changes in atmospheric gas concentration. 1827
Charles Fourier, mathematician, coins the term
greenhouse effect.
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The Human Footprint / Atmosphere
The Human Footprint / Atmosphere Mauna Loa Hawaii
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Not Enough Data?
Not Enough Data?
Charles Keeling 1928 2005
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Not Enough Data?
Not Enough Data?
www.cmdl.noaa.gov/ccgg/trends/
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Not Enough Data?
Not Enough Data?
Keeling Curve
www.cmdl.noaa.gov/ccgg/trends/co2_data_mlo.php
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Not Enough Data?
Not Enough Data?
Keeling Curve 50 years
6,000 years
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Kyoto Protocol Participation 2005
Kyoto Protocol Participation 2005
163 COUNTRIES SIGNED AND RATIFIED
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What is an Ecological Footprint?
What is an Ecological Footprint?

• The total area of productive land and sea
• required to provide the resources for,
• and assimilate wastes of,
• a defined population (e.g., a nation)
• at a particular level of consumption (lifestyle).

Global Footprint Network www.footprintnetwork.org
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Ecological Footprintof the average person in.
Ecological Footprint of the average person in.
USA Canada Australia Japan Mexico World
Brazil China India
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22
18
12
6
5
5
3
2
In acres
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Per Capita Footprint by Country
Per Capita Footprint by Country
UAE USA KUWAIT AUSTRALIA
HAITI SOMALIA AFGHANISTAN
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World average
Acres
0
www.panda.org/news_facts/publications/key_publicat
ions/living_planet_report/index.cfm
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Per Capita Footprint by Country
Per Capita Footprint by Country
KUWAIT UAE USA AUSTRALIA
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MALI NIGER AFGHANISTAN
Acres
0
www.panda.org/news_facts/publications/key_publicat
ions/living_planet_report/index.cfm
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Footprints of Energy Technologies
Footprints of Energy Technologies
2500
2500
Different footprints to produce 1mW of electric
power
2000
2000
1500
1200
Acres per megawatt
1000
750
500
250
250
40
20
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Living Planet Report 2004 WWF
0
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Ecological Footprint Simplified
Ecological Footprint Simplified
E F P x A x T
Where P Population size A Affluence per
capita T Type of technology
Paul Ehrlich The Population Bomb 1968
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Role of Green Building Program
Role of Green Building Program
E F P x A x T
Where P Population size A Affluence per
capita T Type of technology
Paul Ehrlich The Population Bomb 1968
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U. S. Energy Footprint by Sector
U. S. Energy Footprint by Sector
Annual Energy Review 2003 (EIA)
End Use Sector Shares U. S. Total Energy
Consumption 2003
Transportation
Residential
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Buildings account for about 70 of electricity use
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Commercial
Industrial
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What is Austin Energy doing?What can you do?
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GREEN BUILDING PROGRAM
GREEN BUILDING PROGRAM Public/Private/Consumer
Partnership
COMMUNITY-OWNED UTILITY
Building Professionals
Building Users and Owners
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GREEN BUILDING PROGRAM
GREEN BUILDING PROGRAM How It Works
Efficiency, Peak Load Reduction
Participation
Infrastructure
Training, Marketing
Electric Power
Education, Rebates
Supply of green professionals
Demand for green
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GREEN BUILDING PROGRAM
GREEN BUILDING PROGRAM How It Works
SOFT INFRASTRUCTURE
HARD INFRASTRUCTURE

• Principles or Vision
• Plans or Policies
• Programs
• Land Use /Zoning
• Codes

• Transportation
• Electric Power
• Water/Wastewater
• Communications
• Solid Waste
• Parks

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Our Vision
Our Vision
To make Austin the most livable community in the
country.
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AUSTIN ENERGY STRATEGIC PLAN
AUSTIN ENERGY STRATEGIC PLAN
Green Building Program Energy Efficiency
Programs Green Choice Programs
of AE total power profile by 2020
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AUSTIN ENERGY POLICIES
AUSTIN ENERGY POLICIES

• Energy Efficiency
• (Demand Side Management)
• Diverse Sources of Energy (Distributed Energy
  Services)
• Renewable Energy Portfolio
• Clean Power Sources

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AUSTIN ENERGY PROGRAMS
AUSTIN ENERGY PROGRAMS

• Energy Efficiency
• Green Building
• Power Partner
• District Cooling
• Combined Heat Power
• GreenChoice
• Solar Rebates
• Plug-In Hybrids
• Zero Energy Homes

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RESULTS
RESULTS 6,500 Homes Rated by the GBP
AFFORDABLE CUSTOM PRODUCTION
Pilgrim Building
Newmark Homes
Hatch Partnership
KRDB
Venture Four
David Weekley Homes
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Gallery of 5 Star Homes
Gallery of 5 Star Homes
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5 Star Homes
5 Star Homes Examples of Annual Electric
Consumption
Monthly electric power use
2000
1800
1600
1400
1200
kWh
1000
800
600
400
200
0
DEC
NOV
OCT
SEP
AUG
JUL
JUN
MAY
APR
MAR
FEB
JAN
Month
South Austin 5 Star Home 4250 kWh/yr
North Austin 5 Star Home 5900 kWh/yr
Average Home in Austin 12,000 kWh/yr
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Results
RESULTS Hundreds of Green Building Professionals
Developer
Builder
Landscape Architect
GBP Rep
Mechanical Contractor
Architect
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Results Civic Buildings
RESULTS Civic Buildings
AUSTIN CITY HALL Antoine Predock
Architects Cotera Reed Architects USGBC LEED Gold
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Results Civic Buildings
RESULTS Civic Buildings
DANIEL RUIZ PUBLIC LIBRARY Lars Stanley
Architects AEGBP 2 Star
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Results Commerical Buildings
RESULTS Commercial Buildings
VELOCITY CREDIT UNION Clark Mente Architect AEGBP
2 Star
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Results Diverse Energy Sources
RESULTS Diverse Energy Sources
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Results Renewable Energy Sources
RESULTS Renewable Energy Sources
GREENCHOICE
Annual participation 665,000,000 kWh (Equivalent
to 55,000 homes) Number 1 program in U.S. in
sales of renewable energy
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Results Avoided Infrastructure (Negawatts)
RESULTS Avoided Infrastructure (Negawatts)
Estimated Peak Demand Without DSM Programs
AE Peak Generating Capacity 2800 Mw
Peak demand in megawatts
Negawatts 20 From DSM
Cost example lighting improvements cost AE
320/kW compared to 650/kW to build a new power
plant.
Actual Peak Demand 23-26 Sep 2005

ALL TIME RECORD
A record hot weekend in 2005
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Results Future Developments
RESULTS Future Developments
Mueller Airport Redevelopment
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Results Future Developments
RESULTS Future Developments
Mueller Airport Redevelopment
Dell Childrens Hospital USGBC LEED
Platinum
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Results Future Building Codes
RESULTS Future Building Codes
Zero Energy Homes Project
Monday, 31 July 2006
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Results Future Building Codes
RESULTS Future Building Codes
Zero Energy Homes Project
2000
1800
1600
1400
1200
kWh
1000
800
600
400
200
0
JAN FEB MAR APR MAY JUN
JUL AUG SEP OCT NOV DEC
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Heres what you can do.
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Change a Light Bulb

• Fluorescent bulbs
• Last longer
• Save energy
• Save money

• 10 year total electric cost
• Incandescent 600
• Fluorescent 150

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Change a Light Bulb
How much coal avoided over 10 years?
Incandescent
Fluorescent
660 lbs.
155 lbs.
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Profitability of Energy Efficiency Upgrades
Change a Light Bulb
Home Energy Saver http//hes.lbl.gov/hes/profitabl
e.html
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Upgrade Your Home and Business
Upgrade Your Home and Business through Austin
Energy Programs
Power Partner
Lighting, Appliances
Duct Diagnostics
HVAC Equipment
Thermal Envelope
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Upgrade Your Home and Business
Upgrade Your Home and Business through Austin
Energy Programs
www.austinenergy.com/Energy20Efficiency/Tools20a
nd20Tips/calculators.htm
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Buy Energy Star Applicances
Buy Energy Star Appliances

• Refrigerators
• Dishwashers
• Clothes Washer
• Air Conditioners
• Lighting Fixtures
• Ceiling Fans
• If just one in 10 homes used ENERGY STAR
  qualified appliances, the change would be like
  planting 1.7 million new acres of trees.

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Install Solar Electric Panels and Water Heaters
Install Solar Electric Panels and Water Heaters
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Support the Plug-in Hybrid Program
Support the Plug-in Hybrid Program
www.pluginpartners.org
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Learn More
Learn More
Public educational demonstration events of the
Green Building Program
Austin American-Statesman 05/14/05
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Green Building Market Forecast
GREEN BUILDING Market Forecast
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Green Building is
Green Building is
a set of principles, policies, and
practices implemented by AE, GBP members,
builders and citizens everyday at building,
development, city, and regional scales that
better balance our ecological footprint so
that we may pass on
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A sustainable future
A sustainable future
The best way to predict the future is to invent
it. Alan Kay (Inventor of OS for Apple Computers)
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Choosing Our FutureGreenhouse Gases or Green
Homes?
CONTACT INFORMATION Austin Energy
www.austinenergy.com Green Building Program
www.austinenergy.com/go/greenbuilding Rich
MacMath rich.macmath_at_austinenergy.com ESI
www.esi.utexas.edu
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Choosing Our FutureGreenhouse Gases or Green
Homes?
Hot Science - Cool Talks Volume 46
The End