Calculate your electric bill

**rubbersandal** · 14th Feb 2012, 14:21

Posted this on other forum as well, just share along calculation on monthly electric bill

Do note effect from 1 Jan 2012, the electricity tariff for households will be 27.59 cents per kWh.

Follow this formula
https://services.spservices.sg/image...pdf/HomeEA.pdf

Take note above pdf is based on $0.2356 per kwh.
You should change to $0.2759 per kwh instead.

**limweihaoken225** · 21st Jan 2013, 17:47

Hi bro out there hope you can help me clarify this question.

For example my hailea 28a is 240 watt..
Do i use 240watt multiply by 24 hour? When the chiller does not kick in that often..
Yup thanks in advance. Appreciate

**sawzai** · 21st Jan 2013, 19:30

^ , 240w divide 1000 = 0.24 Kwh then 0.24 x 24 = 5.76/day , 5.76 x 30 = 172.8/month , then 172.8 x 0.2759 = $47.67552 / month you have to pay =D

**limweihaoken225** · 21st Jan 2013, 22:38

Expensive equipment. That is the value i calculate out as well. got shock. Thanks anyway

**tawauboy** · 21st Jan 2013, 23:19

Originally Posted by sawzai

^ , 240w divide 1000 = 0.24 Kwh then 0.24 x 24 = 5.76/day , 5.76 x 30 = 172.8/month , then 172.8 x 0.2759 = $47.67552 / month you have to pay =D

this number is valid if the chiller is running non-stop 24/7.
if the chiller runs for 7hrs out of 24hrs, then multiply by 7/24.

**limweihaoken225** · 21st Jan 2013, 23:52

I on my chiller 24 hour but i believe it does not kick in every single hour. Do i still multiply by 24 hour?
Thanks for the reply bro.

**sawzai** · 21st Jan 2013, 23:57

since your running 24 hours , my calculation is correct =D

**tawauboy** · 22nd Jan 2013, 22:51

Originally Posted by limweihaoken225

I on my chiller 24 hour but i believe it does not kick in every single hour. Do i still multiply by 24 hour?
Thanks for the reply bro.

even though you switch on your chiller for 24 hours, it does not consume significant power as long as the compressor motor is not running. for simplicity, you can treat this period ínactivity as not consuming any electricity.
you need to sum up or estimate the total number of hours which the compressor is running. use this figure to calculate the electricity bill.

**greenie** · 25th Jan 2013, 09:27

You should get a kill-a-watt device to know how much electricity your chiller uses.

You then calculate that value. That's the true approximate charge.

You cannot calculate based on chiller rated consumption and multiply for a month.

That only means your chiller continuosly compressing for 24/7 non stop, which we know it is not happening.