In central CA a 20 lighter costs about 21,750 grand to do a crop from start to finish. That includes electricity at the residential rate (3000 a month) Depreciation of your gear (500 a month) Mortgage (1200) Nutrients Coco and CO2 (1500 a month) Manual labor ( 2500 a month most of this cost is trimming) If you do a decent job you can easily average about 1.2 pounds per light of good bud and .1 pounds of small buds and .2 pounds of trim. If the product is good and you are selling it in 5 packs in CA you will get about 2,600 a pound for B+ product about 1400 a pound for the small buds and 300 a pound for the trim. That means you'll gross 66,400 a crop and it will cost you 21,750 so you will net 44,650 per crop. You can easily get 5 crops a year if you are using CO2. You can save money if you can get a shop because then you can get an industrial or agriculture rate and then your electric bill will be about 1200 a month on average. You can also double your money from your shake if you make your own wax. Also if you do most of the labor yourself you can save a couple thousand per crop as well. To do a 20 lighter in CEN CAL you will need at least 320 square feet and a 200 amp breaker and at least 72,000 BTU's of cooling power. It will cost you about 20,000 to set up and 21,750 for the first crop so you will need at least 42,000 of seed money.