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Energy Worksheet for RE Display System 1

Based on Draft Australian Standards AS4509.2

 

Home Energy Use Calculation Sheet

(1)
1
(2)
(3)
(4)
(5)
(6)
(7)
(8)
 

Appliance

Model

No.

Cont. Real Power (Watts)

Surge apprnt Power (VA)

Usage Time (hr)

Daily Energy use = Watts X Hours

Cntrbtn to Peak (Watts)

Cntrbtn to Surge (VA)

Days/ week

Kitchen:

 
 
 
 
 
 
 
 
 
Refrigerator
F&P C190 (ii)
1
94
1536
13.4
1260
94
1536
7
Freezer
None
 
 
 
 
 
 
 
 
Light
Single Flourescent
1
36
40
4.0
144
36
 
7
Toaster
Sunbeam
1
900
900
0.1
90
   
7
 
 
 
 
 
 
 
 
 
 

Main Living areas:

 
 
 
 
 
 
 
 
 
Lights
Performer
1
20
23
4.0
80
20
 
7
Lights (Reading lamp)
-
1
40
46
1.0
40
 
 
7
Television
Goldstar 34cm
1
40
65
3.0
120
40
 
7
Radio
Kambrook
1
6
10
4.0
24
 
 
7
 
 
 
 
 
 
 
 
 
 

Study/Office:

 
 
 
 
 
 
 
 
 
Lights
Performer
1
16
18
2.0
32
 
 
7
Desk Light
Kambrook
1
30
34
0.5
15
 
 
7
Notebook Computer
Pearl 486
1
20
 
3.0
60
 
 
7
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Bedroom 1

 
 
 
 
 
 
 
 
 
Lights
Performer
1
16
18
1.0
16
 
 
7
 
 
 
 
 
 
 
 
 
 

Bedroom 2

 
 
 
 
 
 
 
 
 
Lights
Performer
1
16
18
1.0
16
 
 
7
 
 
 
 
 
 
 
 
 
 

Laundry

 
 
 
 
 
 
 
 
 
Washing Machine
Fisher & Paykel
1
200
1600
1.0
57
 
1600
2
Iron
Sunbeam
1
1800
1800
0.5
257
1800
 
2
Lights
Performer
1
16
18
1.0
16
16
 
 
 
 
 
 
 
 
 
 
 
 

Bathroom

 
 
 
 
 
 
 
 
 
Lights
Performer
1
16
18
2.0
32
 
 
7
Fan
Kambrook
1
40
80
0.5
20
 
 
7
 
 
 
 
 
 
 
 
 
 

Workshop/ Other:

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total Daily Energy Use
2280 Whrs
(9)
 
 
 
 
Inverter Peak Load -1 hr (VA)
 
2508 VA
(10)
 
 
 
Inverter Surge Load (VA)
 
 
3136 VA
(11)
Notes:
 
 
 
 
 
 
 
 
 
(i) This Load Assessment Calculation Sheet is based on Appendix A of the Draft Australian Standards AS4509.2
(ii) Duty cycle for the Refrigerator is based on the star rating information provided by the manufacturer 460 kWh/year
(iii) Surge apparent powers should be available from the manufacturers specifications or from your system designer.
(iv) Contribution to peak power and to surge power will be based on an estimate of what appliances may be used simultaneously.
(v) Cell (9) = Total of Column (6)
(vi) Cell (10) = [sum of Column (7)] ÷ 0.8. This assumes an average load power factor of 0.8 for the purpose of calculating apparent power. If apparent power ratings of appliances are available, it is preferable to use these directly.

(vii) Cell (11) = Total of Column (8).

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Sustainable Energy Development Office - Household Electrical Review Worksheet (downloadable excel file) for estimating household electricity demand.

 

 

 
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