ELECTRICITY BILLS (again!!) - How many units does a pool pump use?

macman


Joined: 15/12/2008
Posts: 24

Message Posted:
23/09/2009 14:48

Does anyone know roughly how many units a pool pump uses per hour? We have just had a really high bill for 34 days and trying to break down the costs of running the pool pump for a 10 x 5 m pool. No aircon being used, and a floor fan used only occasionally in this billing period. Our neighbour is sharing our electricity at the moment and their pool pump is on for 5 hours a day at the moment (12 x 6 m pool), but no other electricity usage except for a large fridge freezer running in their home as they have not been in the house since the end of August.



Many thanks

TRNCVaughan


Joined: 27/04/2008
Posts: 4578

Message Posted:
23/09/2009 15:05

A 1hp pool pump consumes 750W, so in 1 hour it will use .75 units. At the lowest rate (0.30TL/unit) this will cost 5 x .75 per day = 3.75 units @ 0.30TL/unit = 1.125TL per day. 3.75 units per day will not take you onto the next tariff rate.

macman


Joined: 15/12/2008
Posts: 24

Message Posted:
23/09/2009 15:42

Thanks TRNCVaughan for that info - very helpful.

TRNCVaughan


Joined: 27/04/2008
Posts: 4578

Message Posted:
23/09/2009 16:07

Should have said that in a 34 day billing period, 38.25TL would be the cost of running the pump. PLUS standing charge and KDV.

kibsolar


Joined: 14/09/2008
Posts: 552

Message Posted:
24/09/2009 19:10

i would like to mention that on pumps, especially on cheaper ones, very often only the power output is mentioned, not the power input.it simply sounds better, isnt it? , but power input is, roughly said, approx 50% higher as power output.

a fact which makes it very often "not understandable" for the user why their electricity bill is much higher as expected, and even when they do some calculations it seems to be that something is wrong.....

best and the only way to find out the "real consumption" is to measure the amps.

Peter

brandy sour


Joined: 09/04/2008
Posts: 310

Message Posted:
28/09/2009 19:19

At this moment in time our pool pump is connected to our neighbors meter how do you calculate what the pool use is and their use is.

brandy sour


Joined: 09/04/2008
Posts: 310

Message Posted:
28/09/2009 19:43

how do you go about getting a meter for your pool i know it has to be in someone name but who's is it the pool company some of the owners or the name of the site that you are on i ask this question because things are turning nasty on our complex the soon it is sorted the better.

TimothyCadman


Joined: 13/12/2007
Posts: 1040

Message Posted:
28/09/2009 21:17

If you look for a metal plate on your pump it will give you the Voltage and Amps. To find out how many Watts this is Mulitply Volts by Amps.

1000 Watts gives you 1 unit per hour, 2000 Watts gives you 30 minutes per hour, 500 watts gives you 2 hours per hour.

TRNCVaughan


Joined: 27/04/2008
Posts: 4578

Message Posted:
29/09/2009 10:23

brandy sour,



your msg 6 - see my msg 2.

ripoffrock


Joined: 05/08/2008
Posts: 255

Message Posted:
29/09/2009 17:17

brandy sour,

Why on earth has your neighbour had the pool supply connected to their meter?

Texas


Joined: 22/09/2009
Posts: 634

Message Posted:
28/11/2009 11:51

After much research, I have calculated that a 1hp pool pump equals 746 watts, or as previously mentioned 750. I have a 20,000 gallon pool and an American website:



http://www.pentairpool.com/pool_pump_calc/index.htm



claims that my pump will need to be on for 5.3 hours for ALL the water to be re-circulated. I know this is different from shifting the surface water. For information purposes I have a 10x5m overflow pool, average depth 1.4m.



The cost of running this pump equals about 11p per hour. I have calculated the average units used, average bill cycles, average times of the year, TL to GBP @ 2.5, etc.



I'm now considering getting a larger size pump. Perhaps a 1.5hp. Obviously my unit cost will increase from 0.745kwh to 1.119kwh, however the unit will only needed to be on for 3.9 hours to re-circulate all the water as opposed to 5.3 hours.



So, cost wise for using electricity only, it will cost me about 8p per day more.



Am I correct?