Energy Worksheet for RE Display System 2
Based on Australian Standards AS4509.2-2002
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Energy Use Calculation Sheet |
| (1) |
(2) |
(3) |
(4a) |
(5a) |
(4b) |
(5b) |
(6) |
(7) |
(8) |
(9a) |
(9b). |
Appliances |
No. |
Power
(W)
|
Winter or Dry Season |
Summer or Wet Season |
PF |
Cont.to Max. demand (VA) |
Surge Factor |
Contribution to surge demand (VA) |
Usage time (h) |
Energy (Wh) |
Usage time (h) |
Energy (Wh) |
potential |
design |
Kitchen: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
7.8 |
1315 |
13 |
2184 |
0.85 |
197.6 |
|
0.0 |
197.6 |
|
|
|
|
|
|
|
|
0.0 |
|
0.0 |
0 |
|
1 |
1250 |
0.5 |
625 |
0.5 |
625 |
|
0.0 |
|
0.0 |
0 |
Light |
1 |
16 |
4 |
64 |
4 |
64 |
1 |
16.0 |
|
0.0 |
16 |
Pump |
1 |
530 |
1 |
530 |
1 |
530 |
0.8 |
662.5 |
5 |
3312.5 |
3312.5 |
Toaster |
|
|
0.2 |
180 |
0.2 |
180 |
|
0.0 |
|
0.0 |
0 |
Main Living areas:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5 |
80 |
5 |
80 |
|
0.0 |
|
0.0 |
0 |
|
|
|
0.75 |
30 |
0.75 |
30 |
|
0.0 |
|
0.0 |
0 |
|
|
|
3 |
210 |
3 |
210 |
|
0.0 |
|
0.0 |
0 |
|
|
|
1.3 |
35.1 |
1.3 |
35.1 |
|
0.0 |
|
0.0 |
0 |
|
|
|
4 |
24 |
4 |
24 |
|
0.0 |
|
0.0 |
0 |
Study/Office: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3 |
48 |
2 |
32 |
|
0.0 |
|
0.0 |
0 |
|
|
|
0.5 |
15 |
0.5 |
15 |
1 |
30.0 |
|
0.0 |
0 |
|
|
|
24 |
1920 |
24 |
1920 |
1 |
80.0 |
|
0.0 |
0 |
Bedroom 1
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
16 |
1 |
16 |
|
0.0 |
|
0.0 |
0 |
|
1 |
500 |
0 |
0 |
6 |
3000 |
0.9 |
555.6 |
5 |
2777.8 |
555.6 |
Bedroom 2
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
16 |
1 |
16 |
|
0.0 |
|
0.0 |
0 |
Bedroom 3 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
16 |
1 |
16 |
|
0.0 |
|
0.0 |
0 |
Laundry
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.5 |
100 |
0.5 |
100 |
0.9 |
222.2 |
|
0.0 |
0 |
|
|
|
0.5 |
900 |
0.25 |
450 |
1 |
1800 |
|
0.0 |
1800 |
Bathroom
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
2 |
32 |
2 |
32 |
|
0.0 |
|
0.0 |
0 |
|
|
|
0.5 |
15 |
0.5 |
15 |
|
0.0 |
|
0.0 |
0 |
Workshop/ Other:
|
|
|
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|
|
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|
|
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|
Power Drill |
|
|
0.1 |
60 |
0.1 |
60 |
|
0.0 |
|
0.0 |
0 |
| |
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Daily Load Energy a.c. Load (Wh) |
(AC10a) |
6231 |
(AC10b) |
9634 |
|
|
|
|
|
1/2 h maximum demand - (VA) |
(AC11) |
3564 |
|
|
|
Surge demand - (VA) |
(AC12) |
6214 |
|
Notes:
|
(i)
This Load Assessment Calculation Sheet is based on Tabel A3 in Appendix A of the Australian Standards AS4509.2 - 2002
|
(ii)
Duty cycle for the Refrigerator is based on the star rating information
provided by the manufacturer 480 kWh/year
|
(iii) Columns (1) to (4a), (4b) and (6) contain data obtained from the user or field survey |
(iv) Columns(5a, b) = Column (2) x Column (3) x Column (4a, b) |
(v) Column (7) = if the item contributes to the maximum demand = apparent or running power = Power (2) ÷Power Factor (6) |
(vi) Column (8) is the ratio of apparent power during start-up surge to that when running, and depends upon the type of load. |
(vii) Column (9a) = Column (7) x Column (8) |
(ix) Column (9b) = Column (9a) if the item's surge contributes to the surge demand (usually the item with the largest surge), or Column (7) if the item's running power contributes to surge demand |
(x)
Surge apparent powers should be available from the manufacturers
specifications or from your system designer.
|
(xi)
Contribution to peak power and to surge power will be based on an estimate
of what appliances may be used simultaneously.
|
(xii)
Cell (AC10a) = Total of Column (5a), Cell (AC10b) = Total of Column (5b)
|
(xiii)
Cell (AC11) = Total of Column (7)
|
(vii) Cell (AC12) = Total of Column (9b). |
Return to Casestudy
Sustainable Energy Development Office - Household Electrical Review Worksheet (downloadable excel file) for estimating household electricity demand.
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