well, 1000W is one is 1kW. your electricity is probably billed in kilowatt hours, or what it cost for 1kW or electricity per hour of usage.

so calculate 1kW x the price of your kilowatt hour x the average days in a month.


-shake
headshake Reviewed by headshake on . Monthly cost of two Hps 1000 watt lights? about how much and it doent have to be exact, would it cost each month to have 2 hps 1000 watt lights, in 1 one room??????? and what is your monthly bill? in comparison? power bill/Electric Bill?? same thing.. I was thinking like between 150 to 300 extra a month in my power bill!! What do you think guys?? Rating: 5