It takes me about 1/2 kwh of power for lighting for a grow . Add onn the air conditioning, dehumidifier pumps etc then just under 1 kwh per gram total. That is for a 7 week budding cycle. I can safely bet Heath's vertical is doing no better and his quality is lower plus he will grow half as many griows per year in his set up. Plus his sytem is dependent on an unnaturally high DO for mere survival yet alone growth. My sytems actually do better at higher resrvoir water temps and could care less if the nutrient water DO is high or not.
This thread has nothing to do with Heaths' grow so it has no reason for being talked about here so his grow should be talked about on his thread not so quit being a troll. But being your insistent about bringing his sad grow sytem up again. His grow sucked, his methodology sucked, his system sucked. Try asking him about his level of root rot or his length of time budding, or the strain he grew. Looks like mainly sativa. Such a yield for a principally sativa strain is not impressive at all. Given all data for his grow one would likely find his grow was nothing but averag or less. Hell any average experienced grower ought to be able to get over 2 grams per watt given a long enough grow, spread over a large enough area, but as in Heath's grow g quality would lack. The seed growers advertise a greater expected yield than Heath obtained give his square footage.
What would be impresive is to know the amount of kwh used. His "system" is 4 ft in daiamter and three foot tall. That means a suface area of 37.7 square feet/10.33 = 3.65 square meters, An average grow reported by most seed sellers is 400 to 450 grams per square meter, so 3.65 & [(400 +450)/2] = 1551 grams Average yield to expect. His grow as only 1260 grams. So while he obtained 81% of rated average yields and did it with a smaller wattage but one knows how long it took for the budding time so know one knows the actual kwh used. It is the yield/kwh that matter not the yield/(bulb wattage). Then there is the quality. As much as you guys that kiss Heath's butt want to believe. No system with only 16 watts per square foot is going to put out the same quality of buds as a grown done under 4 times that amount of lighting as is nearer the standard. Lights only put out so many lumens and provide so much PAR. Spreading the light over 4 times the area only vertically will definitely not provide the same PAR. When his lame vertical grow can put out near one gram per kwh in 9 weeks of budding I will be consider it worthy of some of the butt kissing praise some growers with few brains are giving it. Until then it is just another lame gimmic grow.
So Heath is getting 33.41 grams persquare foot for a yield. so; (600 w/ 1000 w) kwh* 12 hrs/day * 7 days/ week * 12 weeks = 604 kwh 604/1260 gram = 0.48 kwh/gram plus pump and ventilation etc
My kwh/yield is (1000 w/1000 w) kwh * 12 hrs/day * 7 days/ week * 7 weeks = 588 588/1200 = 0.49 kh/gram plus pump etc. I use air conditioning and CO2 so my costs will be slightly higher than his fan aerated system but if using a ca hiller that will maen the cots will about equal. BUT my finished product is assuredly a better quality and I can grow 8 crops a year verus his four posibly five.
Enough said. Enough scope creap.