Why Buildings Matter€¦ · Good Bones Existing ... Roofers Insulation Contractors Electricians...
Transcript of Why Buildings Matter€¦ · Good Bones Existing ... Roofers Insulation Contractors Electricians...
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Why Buildings Matterand the
Business Case for Energy Efficiency
R. Christopher Mathis
MC2 - Mathis Consulting Company
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SSEB Mission:To enhance economic development and the quality of life in the South through innovations in energy and environmental policies, programs
and technologies.
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Who Am I?
Building Scientist (35+ years)Energy performance of buildings and productsUtility and business implications
Author, EducatorBooks, technical papers, training classes on building
performance, insulation, understanding source energy, window performance, peak power, etc.
Energy Codes and Standards DeveloperNational and state energy codes
WNC Beekeeper
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The End in Mind
Buildings Matter!More than we know…
Trends Impacting Our RegionEnergy, Power, Water, People, etc.
The Business Case for Energy Efficient BuildingsFocusing greater utility and ally engagement in
shaping building energy policy in our region
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Buildings Matter: US Energy Use
Buildings
Industry
Transportation
41%
28%
31%
Source: USEIA - 2012
18%Commercial
22%Residential
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U.S. Energy Consumption
Source: USEIA - 2012
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Growth of Residential AC 1973-2013
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14%
35%
69%
41%
49%
93%97%
100%
75%
93%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Northeast Midwest South West US TotalSource: US Census 2013
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Heat Pumps are Everywhere
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Utility Concerns: Meeting the Demand
Peak Loads
Cooling DrivenSimultaneous
HeatingEspecially now
Lighting
Plug Loads
Peak Demand
surcharge
0
200
400
600
800
1000
1200
1400
1600
1800
2000
0 2 4 6 8 10 12 14 16 18 20 22
HVAC kW
Plug kW
Lighting kW
kW
h
0
10
20
30
40
50
60
70
80
90
100
OSA Temp
F
Base Load
Peak Demand
$
$$
$$$
$$$$
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Regional Peak Power News…
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More Regional News…
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And more…
Today's power peak this morning was just above 26,000 megawatts… when temperatures in the 7-state region averaged a low of 20 degrees Fahrenheit…
Colder weather predicted Wednesday night and early Thursday could easily push power demand above 30,000 megawatts.
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Coincident Demand: Summer & Winter
Heating Like this past week
CoolingDriven by building demand
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Growing demand More…
Simultaneous demand Peak power issues…
Energy security Enough for us? Reliability?
Economic security Our economy? World economy?
The Energy Megatrend
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Homes Have Changed…
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Homes Have Changed…
49%
93%
40%
50%
60%
70%
80%
90%
100%
1973 2013
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New Single Family Homes with Air Conditioning
Source: US Census 2014
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Growth of Residential AC 1973-2013
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14%
35%
69%
41%
49%
93%97%
100%
75%
93%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Northeast Midwest South West US TotalSource: US Census 2013
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46%
20%1%
21%
12%
U.S. Energy Production - 2012
Coal
Natural Gas
Oil
Nuclear
Renewables
Source: USEIA - 2013
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Projections on the Future?
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World Energy Consumption by FuelQ
uad
rilli
on
Btu
Source: USEIA – 2012
1990 – 2035
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Increasing demand
Supply challenges
Peak power
Energy security
Economic security
The Energy Megatrend
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Utility Concerns
The “Timing” of our DemandBase LoadPeak DemandCooling Driven Lighting Driven
Peak Demand
surcharge
0
200
400
600
800
1000
1200
1400
1600
1800
2000
0 2 4 6 8 10 12 14 16 18 20 22
HVAC kW
Plug kW
Lighting kW
kW
h
0
10
20
30
40
50
60
70
80
90
100
OSA Temp
F
Base Load - ¢
Peak Demand
$
$$
$$$
$$$$
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Energy and Water
US News, 11/22/20122/23/2015 MC2 - Mathis Consulting Company 27
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Water Implications…
US Geological Survey 2012
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Power and Water
US thermoelectric facilities use over 200 billion gallons of water a day.
Electricity
Irrigation
Drinking
Sources: Union of Concerned Scientists 2011, USGS 2012
Over half of the withdrawn water in the US…
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13,354
16,634
18,576
20,535
36,566
39,137
41,298
50,803
66,344
190,894
Washington
Tennessee
South Carolina
Virginia
Texas
North Carolina
Georgia
Nevada
Arizona
Florida
Annual Net Migration 2000 - 2004
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US Commercial Buildings
Source: USEIA , 2003 CBECS
74%
19%
7% Before 1989
1990 to 1999
2000 to 2003
93% of our commercial building stock was built
before 2003!
74% was built
before1989!
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Commercial Buildings 1950 - 1989
Common Issues:
Insulation in walls?
Insulation on roof?
Windows?
Air sealing?
Heating systems?
Cooling systems?
Lighting systems?
Common Assets?
Good Bones
Existing Infrastructure
Location
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Building Component Life ExpectancyBuilding Measure USDOE NAHB NIBSInsulation 100 100 100
Windows 40 50 50
Furnace, Forced Air 14 17.5 18
Unit Heaters, Gas or Electric 15 17.5 13
Heat Pump 12 16 15
Air Conditioner - 12.5 -
Central Air 11 15 15
Window Unit 9 10 10
Electric Water Heater 13 11 14
Gas Water Heater 11 10 12
Gas Range 17 15 19
Electric Range 16 13 17
Gas Oven - 14 14
Washer 11 10 -
Dryer, Electric or Gas 12 13 14
Refrigerator-Standard 12 13 17
Freezer-Standard 11 11 162/23/2015 MC2 - Mathis Consulting Company Page 35
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Audience Survey: For How Long?
Your House?
One of Your Parent’s Home’s?
Grandparents?
~ 100 years!
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U.S. Residential Buildings
Source: USEIA – 2009 RECS
New
Existing
1%
99%
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70% Built
Before 1989
30% Built 1989 - 2009
Age of U.S. Homes…
Source: USEIA – 2009 RECS
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Air Leakage…
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Diagnostic Tools…
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FIRST – Plug the Holes in the Ship!
ZEV
USS Buildings
FIRST: “Plug the Holes in the Ship!”
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U.S. Commercial Construction
-75
-55
-35
-15
5
25
45
65
85
105
2010 2015 2020 2025 2030 2035 2040Bill
ion
Sq
uar
e F
eet
Total New Retired
Over 50% new since
2010
Source: USEIA, 2013
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Built Environment Trends
More severe climate events “Superstorms”Extreme cold - “Polar Vortex”Extreme heat
Increased expectations for building performanceEnergy, Durability, Health, IEQ, Resilience, etc.What is “sustainable”?For how long?
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But we’ve got the building
codes to handle that… right?
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What is the Code?
Least safe…
Least strong…
Least energy efficient…
…building allowed by law.
We’re not allowed to
build it any crappier…
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Energy Codes Have Changed…
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Code minimum
is still a long way
from “Net Zero”
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2003
ASHRAE90.1-2004
IECC 2006
IECC2009
Where is Your State’s Minimum Code?
IECC 2012
2006 2009 2012 2015
IECC2015
ASHRAE90.1-2013
ASHRAE90.1-2007
ASHRAE90.1-2010
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“The Size of
Things…”
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120 million homes in US
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Half with crappy windows…
60 million homesOver 1.4 billion windows
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What If We Replaced Windows?
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Heat Loss (winter) Heat Gain (summer)
0
0.2
0.4
0.6
0.8
1 0.90
0.30
Solar Heat Gain
Existing New
0
0.3
0.6
0.9
1.21.20
0.30
U-factor
Existing New
2/23/2015MC2 - Mathis Consulting Company 55Use the “Worst” Code-Compliant Window
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What Would We Save?
1 to 3 Tons of Air Conditioning per houseDepending on size, location, leakiness, etc.
1 ton = 12,000 Btu/hr
13 SEER = 13,000 Btu/kWh
~1 kW of peak power savings per house
~120 million existing homesAbout half have lousy windows
~60 million * 1 ton * 1 kW/ton = 60 million kW
What is
60 million kW?
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The equivalent PEAK capacity of ~300 200mW power plants…
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What if…
Lessons from the 70’s…2/23/2015 MC2 - Mathis Consulting Company 58
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“The Rest of the Story”
Where do we get these building materials?
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“The Rest of the Story”
Where do we sell them?
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“The Rest of the Story”
Who Does the WORK?
HVAC Contractors
Air Sealing Contractors
Window Installers
Home Builders
Carpenters
Remodelers
RoofersInsulation Contractors
Electricians
Plumbers
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“The Rest of the Story”
Who Does the WORK?
HVAC Contractors
Air Sealing Contractors
Window Installers
Home Builders
Carpenters
Remodelers
RoofersInsulation Contractors
Electricians
Plumbers
2/23/2015 MC2 - Mathis Consulting Company Page 62
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THIS also helps the most people…
Job Creation!
Sustainable Business!
Durable Energy Savings!
Real Energy Security!
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Our nation’s existing homes and commercial buildings
are essentially millions of little “power plants”
we’ve already built but we haven’t turned on!
We turn them “on” with improved energy efficiency.
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Develop, promote and recommend policies and programs on energy, environment and economic development that encourage sustainable development
• Develop and implement market transformation strategies such as tax incentives, utility incentives, etc.
• Adopt updated energy efficient building codes• Recognize and incentivize regional and local manufacturing, delivery
and installation of durable EE building products • Connect building energy conservation to regional water objectives
Opportunities Aligned with SSEB Goals
Provide direct scientific and technical assistance to state governments
• Provide education and technical support concerning the role of buildings in state and regional energy needs/policy
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• Connect various policy-makers who are responsible for different aspects of the regulation of energy in buildings
• Provide education and compliance support for energy codes and market transformation programs as a regional energy supply security investment
Facilitate energy and environmental policies between federal, state and local governments and the private sector
• Harmonize efforts by federal, state, and local policymakers to encourage energy efficient buildings
More SSEB Aligned Opportunities (2)
Provide technical assistance to policy-makers and the private sector on energy, environment and economic issues that ensure energy security and supply
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• Enhance existing programs targeting improved building energy performance – especially long-lived building envelope improvements that are regionally or locally produced and installed
• Consider utility programs that more powerfully leverage the impacts from combined building efficiency measures
Support improved energy efficient technologies that pollute less and contribute to a clean global environment while protecting indigenous natural resources for future generations.
• Support technologies that deliver long-lived building energy efficiency improvement
More SSEB Aligned Opportunities (3)
Sustain business development throughout the region by eliminating barriers to the use of efficient energy and environmental technologies
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The End in Mind
Buildings Matter!More than we know…
Trends Impacting Our RegionEnergy, Power, Water, People, etc.
The Business Case for Energy Efficient BuildingsFocusing greater utility and ally engagement in
shaping building energy policy in our region
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