Jump to content

Aquarium power usage calculator


Chuckmeister
 Share

Recommended Posts

How Much Electricity?

Once people see the assortment of aquarium accessories that are plugged into the wall, many hobbyists wonder just how much their tank is costing them in electricity each month. Here’s the basic formula:

Monthly Cost = (wattage) x (charge/kwh) x (hours/day) x 30 x .001

  • (wattage) can usually found on each item
  • (charge/kwh) can be found on your electric bill; residential and in Perth is about 25c per unit (2015)
  • (hours/day) is how long the item is operating

For example, an aquarium pump might use 4 watts and runs 24 hours per day, so it’s monthly energy cost would be:

4 x .25 x 24 x 30 x .001 = .72 or about 72 cents per month

Adding up all the items for a typical 20 gallon (75 Litre) setup might look like this:

========================================

|Item |Wattage |hours/day |Cost |

--------------------------------------------------------------------|

|Light |15 |12 |1.35 | |

|Air Pump |4 |24 |0.72 | |

|Power Filter |9 |24 |1.62 | |

| Heater |100 |4* |3.00 | |

--------------------------------------------------------------------|

|Total | | |$6.69 |

========================================

* This number varies considerably depending on difference between room and aquarium temperatures. In cooler climates or seasons, the heater might run a total of 12 or more per day; in warmer situations, it may hardly run at all.
Larger aquariums will of course require somewhat larger amounts of energy, and it often pays to look into the wattage rating on items before purchasing them.

  • Like 2
Link to comment
Share on other sites

There also digital power usage meters found at bunnings that appliances simply plug into. (very cheap).

A 15amp - 20amp orange power box can have all the appliances plugged into, then the box plugged into the power meter.

Pumps, heaters and filters can really vary a lot in usage compared to the their ratings.

For me though, it's a little like getting stitches,,, it's best not to look, LOL.

  • Like 2
Link to comment
Share on other sites

Ouch, just relised how much its costing me in the winter months with 2x300w heaters running... OUCH god damm it. lol

Your heater will not use 300w continuously, remember it should cycle on as the temp drops below set point and cycle off when water temp is above set point. A heater will only use its full wattage continuously if it cannot supply enough energy to raise the product temp to setpoint. You should be able to approximately halve the power usage.

Edited by PlecoSam
Link to comment
Share on other sites

Ouch, just relised how much its costing me in the winter months with 2x300w heaters running... OUCH god damm it. lol

Your heater will not use 300w continuously, remember it should cycle on as the temp drops below set point and cycle off when water temp is above set point. A heater will only use its full wattage continuously if it cannot supply enough energy to raise the product temp to setpoint. You should be able to approximately halve the power usage.

http://www.aceforums.com.au/index.php?showtopic=60004

my heaters stayed on for a while this winter.

i have a power usage meter at the power point, it was using just over 700w at its peak during winter, and believe me it didnt go down much.

Edited by n3wbi3
Link to comment
Share on other sites

Mine is easy , sweat profusely in the days prior to getting the bill .

On the day of receiving the bill , pass out on the floor after opening envelope.

Bill Calculated !

***sigh*** Unfortunately this is the one ofthe main reasons I shut my room down in sunny canberra. I thought it would lessen the blow if I paid fortnightly on an even pay system but when the bill went over $240 a fortnight I said that was enough. I had a heavily insulated room sumps with lagunga pumps and led lights with light timers.

It wasn't all fish stuff but when I shut my room down I got around $180 back a fortnight or around $4,700 a year.

I also did struggle to look after the fish with family commitments but cash wad killing us.

Cheers

Rosco

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...