Appliances Cost and Analysis
Type
Appliances Capacity Brand Price
Power Consumption
Refrigerator
18.8-18.9 cu ft
Top mount
Kitchen aid $750   
442 kWh/yr
Energy Efficient Model
18.4 cu ft
Top
Frigidaire
$569
407 kWh/yr
GE $460
Dishwasher 24 inch Portable 692 kWh/yr
Energy Efficient Model
24 inch portable
Kenmore $550
363 kWh/yr
Water Heater 50 gallon Electric Kenmore $250 4879 kWh/yr
Energy Efficient Model
$480 4622 kWh/yr
Kenmore
80 gallon
electric
Cloth washer 3.1 cu ft Front load GE $730    260 kWh/yr
Energy Efficient Model
3.8 cu ft $1520 220 kWh/yr
Front load
Kenmore
Elite
1.  How much additional money you need to invest in your house?  $3119-$2190=$929

2. What will the total energy saving if you implement those modifications?
6273 kWh-5612 kWh = 661kWh

3.  What will be the pay back period?
$929/$52.88 = 17.5yr
661 total saved kWh x 0.08 $/Kwh = $52.88/ yr