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Transcript of Choosing Our Future: Greenhouse Gases or Green Homes? Produced by and for the Hot Science – Cool...
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Choosing Our Future:
Greenhouse Gases or Green Homes?
Choosing Our Future:
Greenhouse Gases or Green Homes?
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.
Rich MacMathHot Science - Cool Talks Volume 46
Rich MacMathHot Science - Cool Talks Volume 46
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Choosing Our Future:Greenhouse Gases or Green Homes?
Rich MacMathAustin Energy Green Building ProgramRich MacMathAustin Energy Green Building Program
Choosing Our Future:
Greenhouse Gases or Green Homes?
Choosing Our Future:
Greenhouse Gases or Green Homes?
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What is the Human Footprint?
What is the Human Footprint?What is the Human Footprint?
www.wcs.org/sw-high_tech_tools/landscapeecology/humanfootprintA map of human influence on earth’s land surface
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Atlas of the Human Footprint
83% of world’s land surface under human influence
Atlas of the Human FootprintAtlas of the Human Footprint
www.wcs.org/sw-high_tech_tools/landscapeecology/humanfootprint
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The Human Footprint Report
83% of world’s land surface under human influence
The Human Footprint ReportThe 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.”
www.wcs.org/media/file/human_footprint2.pdf
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The Human Footprint / Atmosphere
6OF
The Human Footprint / AtmosphereThe Human Footprint / Atmosphere
http://data.giss.nasa.gov/gistemp/2005
4OF2OF
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The Human Footprint / Atmosphere
The Human Footprint / AtmosphereThe Human Footprint / Atmosphere
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The Human Footprint / Atmosphere
www.cmdl.noaa.gov
Global Distribution of Atmospheric Carbon Dioxide
The Human Footprint / AtmosphereThe Human Footprint / Atmosphere
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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).
New Science?New Science?
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New Science?
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 / AtmosphereMauna Loa Hawaii
The Human Footprint / AtmosphereMauna Loa Hawaii
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Not Enough Data?Charles Keeling1928 – 2005
Charles David Keeling's measurements of the global accumulation of carbon dioxide in the atmosphere set the stage for today's profound concerns about climate change. They are the single most important environmental data set taken in the 20th century.
Not Enough Data?Not Enough Data?
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Not Enough Data?
www.cmdl.noaa.gov/ccgg/trends/
Not Enough Data?Not Enough Data?
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Not Enough Data?
www.cmdl.noaa.gov/ccgg/trends/co2_data_mlo.php
Keeling Curve
Not Enough Data?Not Enough Data?
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Not Enough Data?
Keeling “Curve”50 years
6,000 years
Not Enough Data?Not Enough Data?
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Kyoto Protocol Participation 2005
Kyoto Protocol Participation 2005Kyoto Protocol Participation 2005
163 COUNTRIES SIGNED AND RATIFIED
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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).
What is an Ecological Footprint?What is an Ecological Footprint?
Global Footprint Networkwww.footprintnetwork.org
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Ecological Footprintof the average person in….
Ecological Footprintof the average person in….
Ecological Footprintof the average person in….
USACanada
AustraliaJapan
MexicoWorld BrazilChinaIndia
USACanada
AustraliaJapan
MexicoWorld BrazilChinaIndia
2422
1218
655
32
In acres
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Per Capita Footprint by Country
www.panda.org/news_facts/publications/key_publications/living_planet_report/index.cfm
UAEUSAKUWAITAUSTRALIA
HAITISOMALIA
AFGHANISTAN
Per Capita Footprint by CountryPer Capita Footprint by Country
24
0
Acr
es World average
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Per Capita Footprint by Country
MALINIGER
AFGHANISTAN
www.panda.org/news_facts/publications/key_publications/living_planet_report/index.cfm
KUWAITUAEUSAAUSTRALIA
20
0
Acr
es
Per Capita Footprint by CountryPer Capita Footprint by Country
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Footprints of Energy Technologies
Living Planet Report 2004
WWF
Different footprints to produce 1mW of electric power
Footprints of Energy TechnologiesFootprints of Energy Technologies
2500
0
Acr
es p
er m
egaw
att
2000
1500
1000
500
2500
250 250
750
2000
1200
40208
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Ecological
Footprint Simplifie
d
Ecological Footprint SimplifiedEcological Footprint Simplified
Paul EhrlichThe Population Bomb 1968
E F = P x A x TE F = P x A x T
Where
P = Population size
A = Affluence per capita
T = Type of technology
Where
P = Population size
A = Affluence per capita
T = Type of technology
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Role of Green Building Program
Role of Green Building ProgramRole of Green Building Program
E F = P x A x TE F = P x A x T
Where
P = Population size
A = Affluence per capita
T = Type of technology
Where
P = Population size
A = Affluence per capita
T = Type of technology
Paul EhrlichThe Population Bomb 1968
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U. S. Energy Footprint by Sector
U. S. Energy Footprint by SectorU. S. Energy Footprint by Sector
End Use Sector SharesU. S. Total Energy Consumption
2003
Annual Energy Review
2003(EIA)
22%22%
18%18%33%33%
27%27%
Transportation Residential
CommercialIndustrial
Buildings account for about 70% of
electricity use
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What is Austin Energy doing?
What can you do?
What is Austin Energy doing?
What can you do?
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GREEN BUILDING PROGRAM
Building Professionals
GREEN BUILDING PROGRAMPublic/Private/Consumer Partnership
GREEN BUILDING PROGRAMPublic/Private/Consumer Partnership
Building Users and Owners
COMMUNITY-OWNED UTILITY
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GREEN BUILDING PROGRAM
Supply of green professionals
Demand for green
Electric PowerInfra
stru
cture
Efficiency,
Peak Load
ReductionPartic
ipat
ion
Train
ing,
Mar
ketin
gEducation,
Rebates
GREEN BUILDING PROGRAMHow It Works
GREEN BUILDING PROGRAMHow It Works
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GREEN BUILDING PROGRAM
SOFT INFRASTRUCTURE
HARDINFRASTRUCTURE
Principles or VisionPlans or PoliciesProgramsLand Use /ZoningCodes
TransportationElectric PowerWater/WastewaterCommunicationsSolid WasteParks
GREEN BUILDING PROGRAMHow It Works
GREEN BUILDING PROGRAMHow It Works
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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
Green Building Program+
Energy Efficiency Programs+
Green Choice Programs
Green Building Program+
Energy Efficiency Programs+
Green Choice Programs
AUSTIN ENERGYSTRATEGIC PLAN AUSTIN ENERGYSTRATEGIC PLAN
= 35%= 35% of AE total power profile by 2020of AE total power profile by 2020
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AUSTIN ENERGY POLICIES
Energy Efficiency (Demand Side Management) Diverse Sources of Energy
(Distributed Energy Services) Renewable Energy Portfolio
Clean Power Sources
Energy Efficiency (Demand Side Management) Diverse Sources of Energy
(Distributed Energy Services) Renewable Energy Portfolio
Clean Power Sources
AUSTIN ENERGYPOLICIES AUSTIN ENERGYPOLICIES
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AUSTIN ENERGY PROGRAMS
Energy Efficiency Green Building Power Partner District Cooling Combined Heat & Power GreenChoice Solar Rebates Plug-In Hybrids Zero Energy Homes
Energy Efficiency Green Building Power Partner District Cooling Combined Heat & Power GreenChoice Solar Rebates Plug-In Hybrids Zero Energy Homes
AUSTIN ENERGYPROGRAMS AUSTIN ENERGYPROGRAMS
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RESULTS
AFFORDABLE CUSTOM PRODUCTIONAFFORDABLE CUSTOM PRODUCTION
KRDB
Pilgrim Building Newmark HomesHatch Partnership
Venture Four David Weekley Homes
RESULTS6,500 + Homes Rated by the GBP
RESULTS6,500 + Homes Rated by the GBP
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Gallery of 5 Star Homes
Gallery of 5 Star Homes
Gallery of 5 Star Homes
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5 Star Homes
Monthly electric power use
0
200
400
600
800
1000
1200
1400
1600
1800
2000
DECNOVOCTSEPAUGJULJUNMAYAPRMARFEBJAN
Month
kWh
South Austin 5 Star Home 4250 kWh/yr North Austin 5 Star Home 5900 kWh/yr
Average Home in Austin 12,000+ kWh/yr
5 Star HomesExamples of Annual Electric Consumption
5 Star HomesExamples of Annual Electric Consumption
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Results
Developer Builder Landscape Architect
GBP Rep Mechanical Contractor Architect
RESULTSHundreds of Green Building Professionals
RESULTSHundreds of Green Building Professionals
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Results Civic Buildings
AUSTIN CITY HALLAntoine Predock ArchitectsCotera Reed Architects
USGBC LEED Gold
AUSTIN CITY HALLAntoine Predock ArchitectsCotera Reed Architects
USGBC LEED Gold
RESULTSCivic BuildingsRESULTSCivic Buildings
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Results Civic Buildings
DANIEL RUIZ PUBLIC LIBRARYLars Stanley Architects
AEGBP 2 Star
DANIEL RUIZ PUBLIC LIBRARYLars Stanley Architects
AEGBP 2 Star
RESULTSCivic Buildings
RESULTSCivic Buildings
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Results Commerical Buildings
VELOCITY CREDIT UNION
Clark Mente Architect
AEGBP 2 Star
VELOCITY CREDIT UNION
Clark Mente Architect
AEGBP 2 Star
RESULTSCommercialBuildings
RESULTSCommercialBuildings
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Results Diverse Energy Sources
Fuel cells Central chiller
Small photovoltaics
Large photovoltaics (ABIA)
Landfill methane
Remote wind turbines
RESULTSDiverse Energy Sources
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Results Renewable Energy Sources
Annual participation: 665,000,000 kWh (Equivalent to 55,000 homes)
Number 1 program in U.S. in sales of renewable energy
GREENCHOICE®GREENCHOICE®
RESULTSRenewable Energy SourcesRESULTSRenewable Energy Sources
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Results Avoided Infrastructure (Negawatts)
Pea
k d
eman
d i
n m
egaw
atts
AE Peak Generating Capacity2800 Mw
Actual Peak Demand23-26 Sep 2005
Estimated Peak DemandWithout DSM Programs
*ALL TIME RECORD
“Negawatts” 20% From DSM
4000
3500
3000
2500
2000
1500
1000
500
0FRI
23SEP05SAT
24SEP05SUN
25SEP05MON
26SEP05
24342260
20102150*
640 NW
RESULTSAvoided Infrastructure (Negawatts)RESULTSAvoided Infrastructure (Negawatts)
A record hot weekend in 2005
Cost example: lighting improvements cost AE $320/kW compared to $650/kW to build a new power plant.
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Results Future Developments
Mueller Airport RedevelopmentMueller Airport
RedevelopmentRESULTSFuture DevelopmentsRESULTSFuture Developments
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Results Future Developments
Dell Children’s Hospital USGBC LEED Platinum
Mueller Airport RedevelopmentMueller Airport
RedevelopmentRESULTSFuture DevelopmentsRESULTSFuture Developments
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Results Future Building Codes
Monday, 31 July 2006
RESULTSFuture Building CodesRESULTSFuture Building Codes
Zero Energy Homes Project
Zero Energy Homes Project
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Results Future Building Codes
RESULTSFuture Building CodesRESULTSFuture Building Codes
Zero Energy Homes Project
Zero Energy Homes Project
Monthly electric power used/produced
0
200
400
600
800
1000
1200
1400
1600
1800
2000
123456789101112
Month
kWh
South Austin 5 Star Home 4250 kWh North Austin 5 Star Home 5900 kWh
Average Home in Austin 12,000 kWh 3 kW Solar PV System 4200 kWh
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
2000
1800
1600
1400
1200
800
600
400
200
0
kWh
1000
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Here’s what you can do.Here’s what you can do.
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Change a Light BulbChange a Light BulbFluorescent bulbs:
Last longer
Save energy
Save money
Fluorescent bulbs:
Last longer
Save energy
Save money
10 year total electric cost:
Incandescent $600
Fluorescent$150
10 year total electric cost:
Incandescent $600
Fluorescent$150
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Change a Light BulbChange a Light Bulb
FluorescentFluorescent
155 lbs.155 lbs.660 lbs.660 lbs.
IncandescentIncandescent
How much coal avoided over 10 years?How much coal avoided over 10 years?
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Profitability of Energy Efficiency UpgradesProfitability of Energy Efficiency UpgradesHome Energy Saver
http://hes.lbl.gov/hes/profitable.html
Change a Light BulbChange a Light Bulb
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Upgrade Your Home and Business
Power Partner
Duct Diagnostics
Lighting, Appliances
HVAC Equipment Thermal Envelope
Upgrade Your Home and Businessthrough Austin Energy Programs
Upgrade Your Home and Businessthrough Austin Energy Programs
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Upgrade Your Home and Business
www.austinenergy.com/Energy%20Efficiency/Tools%20and%20Tips/calculators.htm
Upgrade Your Home and Businessthrough Austin Energy Programs
Upgrade Your Home and Businessthrough Austin Energy Programs
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Buy Energy Star Applicances
RefrigeratorsDishwashersClothes WasherAir ConditionersLighting 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.
Buy Energy Star AppliancesBuy Energy Star Appliances
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Install Solar Electric Panels and Water Heaters
Solar Rebate ProgramOne of the highest solar rebates in the U.S. at $4.50 per watt
Example: 3kW (3,000 watts) PV system in Austin
3000w x $6.35/watt:Austin Energy rebate:Federal tax credit:
Net cost:(22.5% of gross cost)
$20,000-$13,500-$ 2,000
$ 4,500
Install Solar Electric Panels and Water HeatersInstall Solar Electric Panels and Water Heaters
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Support the Plug-in Hybrid Program
Support the Plug-in Hybrid Program
Support the Plug-in Hybrid Program
www.pluginpartners.org
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Learn More…
Austin American-Statesman 05/14/05
Learn More…Learn More…
Public educational & demonstration events of the Green Building Program
Public educational & demonstration events of the Green Building Program
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GREEN BUILDINGMarket Forecast
GREEN BUILDINGMarket Forecast
“…Green building will reach its “tipping point” by 2007 using conservative estimates. This is profound. As any industry crosses from being “less involved” to “more involved” it means the rest of the industry will be forced to follow and the green homes of today will become the standard homes of tomorrow.”
Residential Green Building Smart Market ReportMcGraw-Hill Construction/NAHB
September 2006
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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…
…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…
Green Building is…Green Building is…
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…A sustainable future
…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)
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 Future:
Greenhouse Gases or Green Homes?
Choosing Our Future:
Greenhouse Gases or Green Homes?
CONTACT INFORMATION
Austin Energy: www.austinenergy.comGreen Building Program: www.austinenergy.com/go/greenbuilding
Rich MacMath: [email protected]
ESI: www.esi.utexas.edu
CONTACT INFORMATION
Austin Energy: www.austinenergy.comGreen Building Program: www.austinenergy.com/go/greenbuilding
Rich MacMath: [email protected]
ESI: www.esi.utexas.edu
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Choosing Our Future:
Greenhouse Gases or Green Homes?
Choosing Our Future:
Greenhouse Gases or Green Homes?
Hot Science - Cool Talks Volume 46Hot Science - Cool Talks Volume 46
The End