final: 2nd presentation
TRANSCRIPT
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:CE 4188 Senior Design I:CE 4188 Senior Design I :Topic Energy and Cost
Analysis forEnvironmentally Friendly
Home Upgrades
: .Advisor Dr Vivek Tandon
Members Jackie Villegas Adam Duran Michael Steward
.Courtesy of finehomebuilding com
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Insulation CostsInsulation Costs ata from
.prayfoamdirect com -$1500 tax credit - %US DOE states 40 can be saved by
sealing .air leaks and improving insulation - , ,Product is mold moisture and pest
.resistant
-Analyzed different thickness of spray,foam estimating double the amount of floor
square . (footage for wall square footage Used
value . .)of 5000 s f - - ,1 gives an r value of 7 which is twice
the - .r value per inch of fiberglass - , For cost effectiveness 1 of spray foam
will ,be used to seal air leaks the rest filled
with .typical fiberglass insulation - ,Cost for spray foam is $5700 and payback ,period is 142 months cost of batting
insulation is ,$1615 and sheetrock estimate is $2000
.with labor . ,Total is $9315 Payback period at $550
savings per
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Solar Panel CostsSolar Panel Costs -$1500 tax credit - .Avg electricity usage is 888 kWh per
month. - . . , With 5 5 hrs avg daily sunlight wattage required to be completely off grid is
7000 , -watts which would require 54 130 watt .panels - - , ,Price for on grid system would be $25 480 .with a payback period of 19 years -For stated goal of on grid usage of 388
kWh
, ,per month leaving 500 kWh for solar .requirement is now 3000 watts - , Price is now $11271 that s $715 savings
per
, . .year with a payback period of 13 67 years -These panels also include a 12 VDC output .for battery charging applications -A 12 V wind generator can produce 40 kWh , .per month at a cost of only $905
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ax Incentives Assistanceax Incentives AssistanceProjectroject Homeowners can receive
Residential Energy Efficiency%Incentives worth 30 of the
, ,cost with a $1 500 cap per.home The tax credit is only
on the cost of the materials
:for nsulation and Sealing ,eplacement Windows
,kylights andxternal Doors
indow Films Roofs
:// . . / . = . #http www energystar gov index cfm?c tax_credits tx_index s1
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-Low e Windows-Low e Windows -High performance windows
have at least twopanes of glass and a
- ( )low e low emissivity.coating
Allow light to pass,through but reflect
.back radiant heat /Cut heating cooling cost
% %.by 10 to 15
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RoofsRoofs Adding a roof with
reflective coating- %can save 10 15 in
cooling costs % ,30 tax credit up,to $1500 on energy
efficient asphalt& metal roofs
.Greenbuildingenergysavings com
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DuctsDucts Leaky or improperly
insulated ducts canlead to energy
- %losses of 25 40
.Consumerenergycenter org
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DoorsDoors Properly sealed doors
%can save up to 11on energy costs
Federal tax credit of
% (30 of cost up to)$1500 forinstallation of
energy efficientdoors
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Furnaces
55% 60% 65% 70% 75% 80% 85% 90% 95%
50% $9.09 $16.76 $23.07 $28.57 $33.33 $37.50 $41.24 $44.24 $47.36
55% ---- $8.33 $15.38 $21.42 $26.66 $31.20 $35.29 $38.88 $42.10
60% ---- ---- $7.69 $14.28 $20.00 $25.00 $29.41 $33.33 $37.80
65% ---- ---- ---- $7.14 $13.33 $18.75 $23.52 $27.77 $31.57
70% ---- ---- ---- ---- $6.66 $12.50 $17.64 $22.22 $26.32
75%---- ---- ---- ---- ---- $6.50 $11.76 $16.66 $21.10
80% ---- ---- ---- ---- ---- ---- $5.88 $11.11 $15.80
85% ---- ---- ---- ---- ---- ---- ---- $5.55 $10.50
90% ---- ---- ---- ---- ---- ---- ---- ---- $5.30
Estimated Savings for Every $100 o f Fuel Cos ts by Increasing Your Heating Equipment Efficie
Existing
SystemAFUE
New/Upgraded System AFUE
*Assuming the same he at output
=AFUE annual fuel utilization efficiency
, ,Electric furnaces because they have no chimney have an AFUE of%- %95 100, ,Old furnaces have a continuous pilot light which wastes energy
.instead of an electric ignition
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Water Conservation Water Conservation ( )El Paso Average Household 3 people
water usage
EPWU rate . / ($1 20 748 gallons 1st2992
)gallons . /$1 45 748 gallons , - ,average is about 14 000 15 000
/gallons month
Drip Irrigation System
Rainwater Collection System
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Water Conservation Water Conservation Drip Irrigation
System Scheduled Watering times
%At mid day 30 can evaporate
Automatic Controller Uses evapotranspiration and
temperature to determine waterfor max plant growth
Can reduce total water usage%by 20
- /About 2800 3000 gallons month
Less expensive thanconventional sprinkler
system + *Initial cost Life span annual
= /maintenance cost year = /Conv $800 yr =Drip $300 yr
Rain Water Collection Location
Maintenance
/Roofing Gutter Clean roof
Slight slope Good Gutter system
Uses Not potable demands
Cost
Area Intended Collection + +Starting $1500 installation
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Water Conservation Water Conservation
nergy star qualifiedappliances Washer Dishwasher
Water conserved comparison( )considering Drip in red with
%20 conserved
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Any Questions?Any Questions?