Aim: To determine the cost benefits and
payback periods of your homes overall performance.
Task: calculate the payback period and cost
savings of the following items:
Payback period = original cost / savings per year
Base price of what was used in assignment 2.
Base price of what was used in assignment 2.
Item
|
Energy Use Per Annum (kW/hr)
|
Cost ($)
|
Savings
|
Payback Period
|
Fridge
|
4420.4
|
1281.9
|
||
Alternative Fridge
|
318
|
89.04
|
1192.86
|
1.32
|
TV
|
226.2
|
64.7
|
||
Alternative TV
|
110
|
30.8
|
$33.9
|
8.5
|
Dishwasher
|
350
|
101.5
|
||
Alternative Dishwasher
|
234
|
67.86
|
33.64
|
37.8
|
Washing Machine
|
52.25
|
15.15
|
||
Alternative Washing Machine
|
380
|
110.2
|
-95.05
|
Never
|
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