so if i have a 200 amp breaker do you think there eould be room? right now the house is wired for 8,000watts i ran that for over a year str8. im running 10 1ks for flower and 3 8bulb t5s for veg plus 16 inch wallmount fans and 3 vortex 8inch exhaust fans
Depends on if you are running them on the 240V lines.
Scenario 1 (240V)
8x 1000W HPS: 4.5A each, 36A total
3x 8bulb T5: 1.5A each, 4.5A total
3x vortex 8in: 1A each, 3A total
16x wall fans: .5A each, 8A total (at most)
So you're looking at a flower room that needs about a 45A breaker, for just that room, to be good. A 50A breaker would do good.
The veg room will run on any standard 20A breaker.
For 120V, you merely need to double the Amperage for everything.
I assume you meant that your entire house has a 200A main breaker, which means that individual rooms will have a separate breaker that will determine how much that room can do before any electrical work.
The only difference between 8000W and 12000W is that under 240V you will pull an additional ~18A.
For 30k watts, you are going to need to do some planning because I doubt your residence is ready for it