Electricity usage

[nrs98001]

Hi all,
I have a 90 gal tank with 384 watts of PC lighting, a rio3100 and an EV-120 with a mag5. My kilowatt hours used are ~650-750. This is almost double my bill when I used to have a plain NO freshwater tank! Is this in line with other peoples' kwh usage or is someone stealing my juice!?
Nick

 

[Anonymous]

If you have 400W for 12 hours (light), and a 100W for 24/7 (skimmer/pump), in a month, you are using

300W*24 hr / day *30 day/month = 216kW*hr or 1/3 of you bill.