An industrial centre is working for 9 hours a day for 310 days in a year. The maximun 30% demand of this year is 1,500kVA. The average power consumption of centre is 630kW. For a maximum demand charge of HK$150.00 per kVA per annum and a unit charge of HK$0.60.
i)Calculate the annual bill and
ii)Average cost per unit.
Electrical Supply and Installation question
2008-05-09 4:25 am
回答 (1)
2008-05-09 8:31 am
✔ 最佳答案
The maximun 30% demand of this year is 1,500kVA. ( 30% is wrong )For industry only
average power consumption of centre is 630KW
working for 9 hours a day
310 days in a year
maximum demand of this year is 1500KVA
unit charge of hk0.60 perKW/hr
MD charge of HK$150.00 perKVA annum
i.
630*9*310=1757700KW/h
1757700KW/h*HK$0.6=HK$1054620
1500KVA*HK$150=HK$225000
HK$1054620+HK$225000=HK$1279620
ii.
HK$127620/1757700KW/h=HK$0.728008per KW/h(unit)
收錄日期: 2021-04-25 20:36:11
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