thanks for the explanation.

yup, was also worried about the maid, hence the reason why yesterday, I went back home and switched off all the air conditioners via remote and brought it upstairs to my room. at least I now know that the air conditioners down stairs will not be used without my knowledge. I also advised the maid to switch off all unnecessary lights (1 light switch controls 2 18 watt LED downlights) when not in use. this morning, before coming to work, the downstairs was pitch dark. good to know she actually listens to me.

She doesn't know how to use the oven, so I am safe there, anyhow, I unplugged it last night.

She does use the deep fryer and microwave. but we don't deep fry much or for any length of time.

we don't have any cctv yet, but wiring all done.

no pc also. IT illiterate.

vacuum cleaner is a 2800 watt Electrolux. used once in two days to vacuum all the carpets in the house. total time for vacuuming is +/- 2 90 minutes.

Right now I think, my biggest electricity culprit are the air conditioners and the storage water heater.

I made a list of all the big ticket items at home and made a mental note to keep track of the usage of these things.

air-conditioners
storage water heater
water pump
deep fryer
clothes dryer
oven
electric kettle

did I miss out on any other big ticket items?

air-conditioners
storage water heater
water pump
deep fryer
clothes dryer
oven
electric kettle
fridge

Not to forget also the GST applied after xxx unit

I wonder how come so yours much. I use air con from 10pm also just in bedroom. Hall just use ceiling fan. Got tank water heater also like you on ceiling and switch on during shower only. My kitchen all electricity appliances even for hobs. My electricity around rm90 only.

The only difference here only 1 room occupied

noted on the fridge. we have a 700 plus liter fridge. this cant do much cause will still open and close only when to take stuff out or put stuff in. we have only 1 fridge by the way.

Want to check how frequent the ac being use? open up check the filter. If its use regularly the filter will be dusty. And is good to clean it too.

Your Vacuum take a fair bit. 90mins use is about 4units. That about 32 units a month.

Is your washing machine using hot water? that also take a fair bit.

This post has been edited by weikee: Jul 8 2015, 12:31 PM

As explained by enduser.

It's difficult to pin point which appliances are the root cause for the hike in electricity bill unless one is living in your house to make the observation.
But it's pretty easy to find out yourself.
Just list out the WATTAGE of each electrical appliances x the duration of usage.
High wattage appliances and long or frequent usage are usually the culprit.

Since your mentioned the hike in electricity bill is after you shifted from condo to DSL, I can only guess these possible reasons:
1) Bigger area which requires more lighting, cooling and heating.
Eg, you have added 30+ 18w LED down light, how many are switched on and what's the duration ?? You also added additional storage tank heater on separate rooms, which means you need to heat up 50+35 ltr of water instead of 50 ltr only previouly.

2) The water pump surely one of the reason for the bill hike already.

3) the 700 ltr fridge is from the old house ??

4) No modem, router, iron, blender, juicer, bread maker ??

only rm90!!!
wow!!
I have no idea why it can be so much.
but I am taking measures as we speak.

the most frequent air conditioners being used are the two upstairs.
the rest rarely unless my maid has been using behind my back.
it shud still be running at optimum since I have only been using it for less than 3 months.

vacuum can do much. I have two very young kids plus a cat. so the vacuuming is a must for the cat hair and spilled food.
nope. washing machine no hot water. in fact, the only areas in the house with access to how water are the 3 upstairs bathrooms.

+1
cuci also ur fridge condensor coil
http://www.wikihow.com/Clean-Refrigerator-Coils

This post has been edited by enduser: Jul 8 2015, 12:38 PM

If yours a Front loading washing machin, by default set temperature to 65c (at least for the LG I am using)

Sometime due to requirements/lifestyle we can't reduce electric usage. Time for a rainbow vacuum cleaner

His reply is correct, if use only switch on. But you wash hand, wash face, brush teeth all short usage will also switch on the pump. That will be usage right? So his answer what you ask, but not what the usage

this might indicate much higher a/c consumption than before due to lack of insulation. try to meter your regular usage for a week as suggested and then try (if you can tahan) one week without any a/c. compare the figures to find out your a/c portion of the bill.

1200 units is a lot. i a/c 24/7 (but insulated very well) and use all appliances (washing machine, dishwasher, pc, fridges, tv, etc etc.) in approx. 9 units per day per 1000 sqft living space (ceiling height is 12 ft). thats an average for hot/cold season over a couple of years. but this is running all on as energy efficient appliances as i can find (LED lights, inverter a/c, AAA+ or higher rating). if you calculate the volume of your house (and maybe the old) you can also get an estimation of how much A/C you probably need by default. then the lack of shading etc. will greatly increase concumption too.

its a top loading Samsung washing machine. very simple washing machine. no selection for hot or cold.
rainbow vacuum cleaner I borrow from my FIL. too expensive to buy. hence the Electrolux vacuum cleaner.

true very true.
at the moment I am switching off at night.
but am also seriously considering to switch it on only for showers and to keep it close all other times.
just to be on the safe side.

flash toilet, shower (mind you, rain shower), wash dishes, preparing food, wash car, mop floor, boil water....let's assume pump running on average 100min a day and it's a 700w pump, then the monthly additional energy cost + GST + 1.6% KWTBB is around RM20

Water pump usually how many watt?

Just how low is your water pressure anyways?

If only rain shower not power enough, do they sell pump just for this purpose?
Im interested to know too

This will required special piping, or use instant water heater that usually don't give you good rain shower pressure.