how much does it cost on avg...

[Supportradicalhabits]

to run a 1000 w HPS monthly for you guys?

[Sensi Super Skunk]

The Cost to Run a Lighting System
To get the operating cost per hour for a light, take the lights combined wattage, and divide it by 1000 to get the kilowatts used. Then multiply that number by the amount your electric company charges per kilowatt hour. HID lights will use the number of watts it emits per hour, ie; 600w system will use 600 watts per hour (regardless of spectrum).
(light wattage output / 1000) x electricity cost per kilowatt hour = Operating cost per hour
operating cost per hour x hours used per month = Operating cost per month

[llamaman666]

thats confusing, but it some how makes sense.

[bonbon]

http://www.overgrow.com/tools/powercost.php....bonbon