View Full Version : coreefer and others with 120s

07/06/2006, 07:23 AM
if you dont mind me asking, how much is your electric bill?

im getting a 120 and trying to budget in the cost of mh and such for a 120

07/06/2006, 07:30 AM
Mine runs me around 65 extra a month but im in Castle Rock not sure what your KWs cost in the springs

07/06/2006, 11:29 AM
I really couldn't tell you...I've never really sat down and tried to determine this.

07/06/2006, 11:35 AM
ok =(

i asked you specifically because

"120g reef tank,40g sump, 4x150wHQI's, mainly SPS"

thats oddly the same tank i want

07/06/2006, 11:42 AM
yeah...I just don't even have a ballpark. Perhaps a guy like Russ who works with electricty can give you a guideline.

07/06/2006, 11:53 AM
Determine how much CS utilities charge per KW. It will be on your utility bill. Then use this electrical calculator (http://reefcentral.com/calc/tank_elec_calc.php)

07/06/2006, 01:03 PM
Well, if you want SPS, you need to pay the electrical piper.

07/06/2006, 03:04 PM
Wouldn't 2 250's use less electricity? I don't know for sure, but maybe Russ will know.

07/06/2006, 03:22 PM
2 250s will draw less than 4 150s depending on the ballast.

07/06/2006, 05:49 PM
hmmmmmm 4 x 150 = 600, 2 x 250 = 500 and Todd is an engineer ;=P

07/06/2006, 09:08 PM
The wattage of the bulbs does not necessarily equal the power consumed. Don't forget that the power supplies lose energy as heat too. Power consumption of a 150W ballast can be higher than the 150W the bulb itself uses.

07/06/2006, 09:11 PM
If you want to calculate your power consumption, take all the accessories you are going to be running and add them up. X that by how many hours a day you will be running them and that will give you and Idea of how much you are consuming. Then figure out what you are paying per KW.