What You Could Do

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What You Could Do Live in a more
Energy-Efficient Home
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What You Could Do Live in a more
Energy-Efficient Home
Beginning level a) turn off unused appliances
and electronics
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What You Could Do Live in a more
Energy-Efficient Home
Beginning level a) turn off unused appliances
and electronics b) caulk and weather-strip doors
and windows that leak air
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What You Could Do Live in a more
Energy-Efficient Home
Beginning level a) turn off unused appliances
and electronics b) caulk and weather-strip doors
and windows that leak air c) add insulation to
your house and appliances
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What You Could Do Live in a more
Energy-Efficient Home
Beginning level a) turn off unused appliances
and electronics b) caulk and weather-strip doors
and windows that leak air c) add insulation to
your house and appliances d) work with your
local power and heating utilities to find
energy-efficient appliances (refrigerator, water
heater, washer/dryer, HVAC, lawn mower).
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Adding Insulation
U.S. Department of Energy Recommended Total
R-Values for Houses in Six Climate Zones How
Much Insulation Does Your Home Need?
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http//www.eere.energy.gov/consumer/tips/insulatio
n.html
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Cost to insulate an uninsulated attic to R-49 in
Cedar Falls 0.66/sq. ft.
Cost to insulate some uninsulated walls in a
wood-framed house to level R-11 in Cedar Falls
0.71/sq. ft.
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Energy efficient applianceswater heater costs
http//www.aceee.org/consumerguide/topwater.htmco
mpare
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Intermediate Levelinstall an alternative-energy
system at home. Example Geothermal Heating
Cooling using a Geothermal Heat Pump
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Intermediate Levelinstall an alternative-energy
system at home. Example Geothermal Heating
Cooling using a Geothermal Heat Pump
Earth (45 F to 75 F a few feet below the
surface, depending on latitude)
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Intermediate Levelinstall an alternative-energy
system at home. Example Geothermal Heating
Cooling using a Geothermal Heat Pump
Home or Building
Lose heat in summer
Gain heat in winter
Earth (45 F to 75 F a few feet below the
surface, depending on latitude)
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Geothermal Heat Pump in action 4 Cedar Rapids
Community Schools
and Hoover Elementary School and Jefferson High
School
Collectively, the four schools are expected to
save 177,481 kilowatt hours of electricity
annually. "This energy savings is equivalent to
powering 20 average-sized residential homes for a
year," explained Jan Otto, account manager at
Alliant Energy. Results like this are
Franklin Middle School
Washington High School
significant and over time should allow schools to
redirect dollars from utility expenses back into
the classroom. Energy efficiency projects are a
win for everyone."
http//www.alliantenergygeothermal.com/stellent2/g
roups/public/documents/pub/geo_act_sch_001431.hcsp
http//www.eere.energy.gov/consumer/your_home/sp
ace_heating_cooling/index.cfm/mytopic12640
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To learn more ways to save and help the
environment, go to your public library and look
for the ACEEE guide (If your library doesnt
have the book, request that they order it.)
http//www.aceee.org/consumerguide/index.htm http
//www.aceee.org/index.htm
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What You Could Do Live in a more
Energy-Efficient Home
Advanced level (costing more )build an energy
efficient home.
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What You Could Do Live in a more
Energy-Efficient Home
EEBA HouseChicago, IllinoisHabitat for Humanity
- ChicagoBuilding Science Consortium Cold
Climate Zone
Advanced level (costing more )build an energy
efficient home.
Two-Story detached, 1232 sq. ft. ARoofing
vented attic-truss framing, R-38 BWindows vinyl
frames CHeating Gas Furnace, 94
AFUE DFoundation Slab with R-10 EHot Water
natural gas F GAir conditioning
(none) HWalls wood framing R-19 R-5 sheathing
http//www.eere.energy.gov/buildings/info/homes/ne
wconstruction.html
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Alliant Energy in Iowa Building a New
HomeFrequently Asked Questions Is building an
energy-efficient home really worth it? Yes! By
making sure your new home meets energy-efficiency
standards, you can expect to pay 30 percent less
on your utility bills compared to a typical home.
http//www.alliantenergy.com/docs/groups/public/do
cuments/pub/p014674.hcsp
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Alliant Energy in Iowa Building a New
HomeFrequently Asked Questions Is building an
energy-efficient home really worth it? Yes! By
making sure your new home meets energy-efficiency
standards, you can expect to pay 30 percent less
on your utility bills compared to a typical
home. Will it cost more to increase energy
efficiency? Depending on the options you choose,
choosing high-efficiency products may have higher
purchase prices than conventional models. But
keep in mind that any extra cost will be paid
back in energy savings in just a short time. For
example, upgrading to 2x6 construction costs
about 1 more per square foot but the
difference in your utility bills will pay back
the added cost in less than two years.
http//www.alliantenergy.com/docs/groups/public/do
cuments/pub/p014674.hcsp
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Alliant Energy in Iowa Building a New
HomeFrequently Asked Questions Is building an
energy-efficient home really worth it? Yes! By
making sure your new home meets energy-efficiency
standards, you can expect to pay 30 percent less
on your utility bills compared to a typical
home. Will it cost more to increase energy
efficiency? Depending on the options you choose,
choosing high-efficiency products may have higher
purchase prices than conventional models. But
keep in mind that any extra cost will be paid
back in energy savings in just a short time. For
example, upgrading to 2x6 construction costs
about 1 more per square foot but the
difference in your utility bills will pay back
the added cost in less than two years. How can I
find a good builder? If you live in the Alliant
Energys service territory, try our online Dealer
Locator. These professionals participate in
Alliant Energy's Participating Dealer program,
which ensures energy expertise, quality
workmanship and excellent customer service.
They'll help you choose the right equipment for
your needs, and they'll make energy efficiency a
top priority. If you live outside our service
territory, try the EnergyStar New Homes Partner
Locator.
http//www.alliantenergy.com/docs/groups/public/do
cuments/pub/p014674.hcsp
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Alliant Energy in Iowa Building a New
HomeFrequently Asked Questions Is building an
energy-efficient home really worth it? Yes! By
making sure your new home meets energy-efficiency
standards, you can expect to pay 30 percent less
on your utility bills compared to a typical
home. Will it cost more to increase energy
efficiency? Depending on the options you choose,
choosing high-efficiency products may have higher
purchase prices than conventional models. But
keep in mind that any extra cost will be paid
back in energy savings in just a short time. For
example, upgrading to 2x6 construction costs
about 1 more per square foot but the
difference in your utility bills will pay back
the added cost in less than two years. How can I
find a good builder? If you live in the Alliant
Energys service territory, try our online Dealer
Locator. These professionals participate in
Alliant Energy's Participating Dealer program,
which ensures energy expertise, quality
workmanship and excellent customer service.
They'll help you choose the right equipment for
your needs, and they'll make energy efficiency a
top priority. If you live outside our service
territory, try the EnergyStar New Homes Partner
Locator. If we use the maximum amount of attic
insulation, can we cut back in other places to
save money? Its important to remember that all
the components of your home are designed to work
as a system sacrificing energy efficiency in
one area can reduce or even eliminate savings in
another area.
http//www.alliantenergy.com/docs/groups/public/do
cuments/pub/p014674.hcsp
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Future Energy Efficient Housingestimates for now
till 2050 Zero-Energy Homes
A new (2004) Zero-energy home in North Texas
Dallas. Utility costs, which were anticipated
using a computer modeling program, are roughly
equivalent to homes 1/3 the size, averaging less
than 70/ month for electricity and gas - for a
four bedroom 3800 square foot home. Once the
benefits of the solar photovoltaic panels are
factored in, the net cost to operate this house
should be zero.
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Challenge these houses (whatever their size)
cost more to build because they include more
technology (energy efficient windows, solar
voltaic cells). Higher building costs will be
balanced over the life of the house by much lower
energy costs, but the mortgage startup will be a
hurdle.
http//www.zeroenergyhomedallas.com/what.html
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A February 2006 analysis of how quickly
Zero-Energy Homes will be built financing and
adoption scenarios.
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The rate at which Zero-Energy homes are built
depends on the market, on location, and on
federal/state tax credits
A 30 tax credit scenario (at right)
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From The Potential Impact of Zero energy Homes
(2006).