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- Pages: 13
CE 4188: Senior Design I
Topic: Energy and Cost Analysis for Environmentally Friendly Home Upgrades
Advisor: Dr. Vivek Tandon
Members Jackie Villegas Adam Duran Michael Steward
Courtesy of finehomebuilding.com
Insulation Costs
Data from sprayfoamdirect . 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
Solar 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.
Tax Incentives Assistance Project
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: Insulation and Sealing Replacement Windows , Skylights , and External Doors Window Films Roofs
http://www.energystar.gov/index.cfm?c=tax_credits.tx_index#s1
Low-e Windows High-performance windows have at least two panes 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%.
Roofs 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
Ducts Leaky
or improperly insulated ducts can lead to energy losses of 25-40%
Consumerenergycenter.org
Doors Properly
sealed doors can save up to 11% on energy costs Federal tax credit of 30% of cost (up to $1500) for installation of energy efficient doors
Furnaces 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. Estima te d Sa vings fo r Eve ry $100 of Fuel Cos ts by Incre as ing Your He a ting Equipme nt Efficie ncy* Ex isting Sy ste m A F UE
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
Ne w/Upgra de d Sy ste m A F UE
*As suming the s a me he a t o utput
Water Conservation
El Paso Average Household (3 people) water usage
Drip Irrigation System
Rainwater Collection System
EPWU rate $1.20/748 gallons (1st 2992 gallons) $1.45/748 gallons average is about 14,000-15,000 gallons/month
• • • • • • • • • • •
Water Conservation
Drip Irrigation System
Rain
Location Maintenance
Scheduled Watering times At mid day 30% can evaporate
Water Collection
Roofing/Gutter
Clean roof Slight slope Good Gutter system
Automatic Controller Uses evapotranspiration and temperature to determine water for max plant growth
• Uses
Can reduce total water usage
by 20%
About
Not potable demands
2800-3000 gallons/month
Cost Area Intended Collection Starting +$1500 + installation
Less expensive than
conventional sprinkler system
Initial cost + Life span*annual maintenance = cost/year Conv = $800/yr Drip = $300 yr
• •
• •
• •
Water Conservation
Energy star qualified appliances
Washer Dishwasher
Water conserved comparison considering Drip (in red) with 20% conserved
• •
Any Questions?
Topic: Energy and Cost Analysis for Environmentally Friendly Home Upgrades
Advisor: Dr. Vivek Tandon
Members Jackie Villegas Adam Duran Michael Steward
Courtesy of finehomebuilding.com
Insulation Costs
Data from sprayfoamdirect . 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
Solar 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.
Tax Incentives Assistance Project
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: Insulation and Sealing Replacement Windows , Skylights , and External Doors Window Films Roofs
http://www.energystar.gov/index.cfm?c=tax_credits.tx_index#s1
Low-e Windows High-performance windows have at least two panes 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%.
Roofs 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
Ducts Leaky
or improperly insulated ducts can lead to energy losses of 25-40%
Consumerenergycenter.org
Doors Properly
sealed doors can save up to 11% on energy costs Federal tax credit of 30% of cost (up to $1500) for installation of energy efficient doors
Furnaces 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. Estima te d Sa vings fo r Eve ry $100 of Fuel Cos ts by Incre as ing Your He a ting Equipme nt Efficie ncy* Ex isting Sy ste m A F UE
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
Ne w/Upgra de d Sy ste m A F UE
*As suming the s a me he a t o utput
Water Conservation
El Paso Average Household (3 people) water usage
Drip Irrigation System
Rainwater Collection System
EPWU rate $1.20/748 gallons (1st 2992 gallons) $1.45/748 gallons average is about 14,000-15,000 gallons/month
• • • • • • • • • • •
Water Conservation
Drip Irrigation System
Rain
Location Maintenance
Scheduled Watering times At mid day 30% can evaporate
Water Collection
Roofing/Gutter
Clean roof Slight slope Good Gutter system
Automatic Controller Uses evapotranspiration and temperature to determine water for max plant growth
• Uses
Can reduce total water usage
by 20%
About
Not potable demands
2800-3000 gallons/month
Cost Area Intended Collection Starting +$1500 + installation
Less expensive than
conventional sprinkler system
Initial cost + Life span*annual maintenance = cost/year Conv = $800/yr Drip = $300 yr
• •
• •
• •
Water Conservation
Energy star qualified appliances
Washer Dishwasher
Water conserved comparison considering Drip (in red) with 20% conserved
• •
Any Questions?
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