Try this and don't forget to enter your correct kilowatt hour charge. A quick google search or your bill will show this.
http://www.fishyou.com/aquarium-calculator.php
For example NPPD is .0851 in the Summer for first 750 kwhs then .0698 after that.
.0626 in the Winter for the first 750 kwhs then .0374 after that.
My future 300 gallon 24 hour usage: (estimated)
2 x 300w heaters (gussing they will run half the time?) = 300 watts
4 x 48" 32w T-8 lights (8 hours a day/ divide by 3) = 43 watts
36w UV Sterilizer = 36 watts
Mag Drive 3600 = 380 watts
Mag Drive 2400 = 265 watts
Total = 1024 watts
Summer = $57.00 per month
Winter = $37.00 per month
http://www.fishyou.com/aquarium-calculator.php
For example NPPD is .0851 in the Summer for first 750 kwhs then .0698 after that.
.0626 in the Winter for the first 750 kwhs then .0374 after that.
My future 300 gallon 24 hour usage: (estimated)
2 x 300w heaters (gussing they will run half the time?) = 300 watts
4 x 48" 32w T-8 lights (8 hours a day/ divide by 3) = 43 watts
36w UV Sterilizer = 36 watts
Mag Drive 3600 = 380 watts
Mag Drive 2400 = 265 watts
Total = 1024 watts
Summer = $57.00 per month
Winter = $37.00 per month