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By Bill Baker, Sam Corey, Tom Sattman, and Dan Streeter

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Opportunity Our Home Criteria Ideas and Evaluation Solutions Summary

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Opportunity: Through new technology, we can make the current home more sustainable The current home uses minimal energy Appliances are outdated and inefficient

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Mr. Kulp is a retired electrical engineer and disabled army veteran Mrs. Kulp is a liberal arts major that worked for family stores while getting her degree They have both children and grandchildren that visit them

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Little water use Low-flow showerhead Low- flow toilets Do the dishes by hand Heat home mostly with electric space heaters When it is very cold, they use home heating oil to heat their homes to a comfortable level They wanted this heating system left alone

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Outdated appliances Refrigerator/ freezer Incandescent light bulbs Washing machine Many standby electronics Three space heaters 775 kwh per month

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Budget Size of homeowners property Easy mobility Willingness of customer to accept new technology Doesnt bother neighbors Unaffected by seasonal weather Building codes

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Initial cost less than $15,000 Must yield savings within a few years Decrease electricity usage Fast installation Minimal training or hassle required Aesthetically pleasing to the customer and neighbors Does not disturb the customers current way of life/ mobility

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Replace appliances Refrigerator/ freezer Incandescent light bulbs Washing machine Install solar panels Limit current energy usage Smart power strip Programmable thermostat

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Refrigerator/ freezer Their refrigerator uses about 1150 kwh of electricity per year which costs $80.50 A new 18.5 cubic foot Kenmore refrigerator freezer would cost $760 and only use 476 kwh which would cost about $32.32

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16 incandescent bulbs 4 CFL bulbs LEDCFLIncandescent Light bulb projected lifespan50,000 hours10,000 hours1,200 hours Watts per bulb (equiv. 60 watts)101460 Cost per bulb$35.95$3.95$1.25 KWh of electricity used over 50,000 hours5007003000 Cost of electricity (@ 0.10per KWh)$50$70$300 Bulbs needed for 50k hours of use1542 Equivalent 50k hours bulb expense$35.95$19.75$52.50 Total cost for 50k hours$85.75$89.75$352.50

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Current washing machine: 40 gallons per load + 40 more for rinse cycle New Frigidaire FAFW3801: 11 gallons per load + rinse cycle MSRP of $599

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24 panels on the roof of the house Average output with 5 hours of sunlight per day is 785 kwh per month 30% rebate

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Phantom loads account for 7% of average electricity Cost $30 apiece Need 2-3 power strips to eliminate all phantom loads

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Have a manual thermostat Wide price range $15 - $400 Change temperature automatically based upon what time of day it is

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Initial Idea Evaluation Ideas Criteria Solar Panels Programmable Thermostat Replace Light Bulbs Replace Refrigerator Replace Washer Smart Power Strip Initial Cost------ Long Term Savings+0++++ Sustainability++++++ Easy Installation-+++++ Easy Use+00000 Eye Appeal+00+00 Comfort000+00 Total212422 Rank373133 ActionEvaluateThrow OutEvaluate

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Pairwise Comparisons CriteriaABCDEFGTotalPercent A 1 1/4 1/6247721.42 19.00% B 41 1/3457728.33 25.13% C 631568837.00 32.82% D 1/2 1/4 1/7124411.89 10.55% E 1/4 1/5 1/6 1/21338.12 7.20% F 1/7 1/8 1/4 1/3112.99 2.66% G 1/7 1/8 1/4 1/3112.99 2.66% Total 112.75100.00% Key SymbolCriteria AInitial Cost B Long-Term Savings CSustainability DEasy Installation EEasy Use FEye Appeal GComfort

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Weighted Comparison Ideas Solar Panels Replace Light Bulbs Replace RefrigeratorReplace WasherSmart Power Strip CriteriaWeightRatingScoreRatingScoreRatingScoreRatingScoreRatingScore Initial Cost19.00%10.1920.381.50.2851.50.28520.38 Long Term Savings25.13%41.00524 30.753941.005230.7539 Eco-friendly32.82%51.64141.312830.984641.312830.9846 Easy Installation10.55%30.31653 40.42230.316540.422 Easy Use7.20%30.21640.2884 4 4 Eye Appeal2.66%30.07982.50.066530.07983 3 Comfort2.66%2.50.06652.50.066530.07983 3 Total100.00% 3.515 3.4355 2.8931 3.3671 2.9881 Rank 1 2 5 3 4 Action Use

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We will replace Washing machine Light bulbs Refrigerator We will install Solar panels Three smart power strips

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Solar Panels$6,426 Refrigerator$760 Washing Machine$600 LED Bulbs$576 Smart Power Strips$90 Cost of Upgrades$8,452 Cost Plus Overhead$11,833

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Solar Panels will generate about 9,420 kwh per year Frigidaire FAFW3801 washer will save on average 50 gallons per load LED Bulbs will save about 860 kwh per year New refrigerator freezer will save 674 kwh per year Smart power strips will save about 550 kwh per year of their total energy bill

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The solar panels will generate an excess of about 2,200 kwh per year If we sell it back to the grid at 5 cents per kwh, the electricity company will have to pay them $110 per year

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We spent $11,833 of the $15,000 budget We will be saving a lot of resources They will be selling excess electricity back to West Penn Power Their house will increase in value

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http://www.wholesalesolar.com/system/solaredge- 24-astronergy-panel-gridtie-system.html http://www.wholesalesolar.com/system/solaredge- 24-astronergy-panel-gridtie-system.html http://michaelbluejay.com/electricity/refrigerators.h tml http://planetgreen.discovery.com/buying- guides/bottom-freezer-refrigerator.html http://michaelbluejay.com/electricity/refrigerators.h tmlhttp://planetgreen.discovery.com/buying- guides/bottom-freezer-refrigerator.html http://eartheasy.com/live_led_bulbs_comparison.ht ml http://eartheasy.com/live_led_bulbs_comparison.ht ml http://www.csgnetwork.com/elecenergycalcs.html? kwh_used=0.07 http://www.csgnetwork.com/elecenergycalcs.html? kwh_used=0.07 http://www.energystar.gov/index.cfm?c=most_effici ent.me_clothes_washers http://www.energystar.gov/index.cfm?c=most_effici ent.me_clothes_washers http://www.aspenenergyefficiency.com http://www.aspenenergyefficiency.com

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http://www.nest.com/wp- content/themes/nest/static/white_papers/efficiency- simulation-white-paper.pdf http://www.nest.com/wp- content/themes/nest/static/white_papers/efficiency- simulation-white-paper.pdf http://ecorenovator.org/er-project-house-testing- flow-shower-head/ http://ecorenovator.org/er-project-house-testing- flow-shower-head/ http://www.comfortzoneheaters.org/comfort-zone- electric-portable-space-heater-model-1500p- review.html http://www.comfortzoneheaters.org/comfort-zone- electric-portable-space-heater-model-1500p- review.html http://kashisawesome.info/?p=10 http://kashisawesome.info/?p=10 http://mybestrefrigeratorreviews.com/tag/refrigerat orfreezer/ http://mybestrefrigeratorreviews.com/tag/refrigerat orfreezer/ http://science.howstuffworks.com/environmental/gr een-tech/sustainable/smart-power-strip.htm http://science.howstuffworks.com/environmental/gr een-tech/sustainable/smart-power-strip.htm

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