2400 watts x 12 hours = 28.8kwh per day = 864kwh per month
Electricity costs about 8-12 cents per KWH in the US, so it would cost between $69.12 and $103.68 per month. That is a pretty big spike, but could be explained by some high current appliance.

Quote Originally Posted by latewood
It's like running 5 computers all at once.
2400 watts is alot more than 5 computers.
BigBlock Reviewed by BigBlock on . HID energy What would the cost be per month of running 2 1000W HPS's and 1 400W MH???? Would this raise the red flag with the power companys? How much does your power usage have to spike for them to be curious as to whats going on? If anyone has ever used those 3 bulbs input would be awesome Thanks Rating: 5