I have just recently completed my grow room. I would not put in 15 amp breakers....20 amp...just in case. Lots of plugs....I put in 16 plugs, seperate circuit for the Air conditioner....got a split system, so in the winter I will have heat as well.....it only draws 9 amps.... I have 60 amp breaker and jus barely have enought power, but I have 7 1000 watt lamps, split system, 4 fans, huge Can fan 1700 CFM, 2 sets of T5 4' for clones and a cloner, big 1/4 hp pump for watering, CO2 on a timer, It adds up quick, and you can never have too many plugs.

Good Luck.....let me know if you need any help.:thumbsup:

One other thing....it takes lots of time to put a well thought out grow room, all of your ballasts need to either be hung or on shelves or mounted on the wall.....I worked most of the day today, and 1/2 of the day yesterday. It's always something....To be successful you have to check things twice a day.

Good luck