As Colorado and Washington have begun their journey into “Marijuana Land,” an unanticipated aspect has emerged – growing marijuana indoors is very energy intensive – four marijuana plants needing artificial lighting that burns as much energy as 29 refrigerators. By one utility’s estimate, if recreational marijuana is approved in Oregon in a couple of months, the added energy demand to grow it will be equal to the power it takes to light up Eugene.
It’s a remarkable discovery as revealed in this news item in the Oregonian. Click here.
After you read the article you can read what we received from a medical marijuana patient that grows his own and his numbers do not jive at all with what’s in the article….
I am a medical marijuana patient, and I do grow my own medicine.
I know people’s setups will vary drastically, but I’m not sure how one could use that sort of power for a setup the size of mine. I use roughly 2300 watts peak for my entire setup, which can grow 6 very large plants at a time. The setup uses 1500W for lighting (on for 12 hours a day), and only 800W for environmental control. That includes de-humidification, air purifying, air moving fans, and exhaust/intake fans achieving an air exchange rate of 1250 cubic feet per minute.
An average household heater uses 1500W, and my fridge uses 600W
If my setup uses 2300W for 12 hours, and then 800W for 12 hours, that’s 37.2 Kilowatts per 24 hour period.
If I turn on my 2 heaters for a total of 10 hours per 24hr period, and my fridge runs for 12 hours per 24 hour period as well, that’s 37.2 Kilowatts per 24 hour period.
So yeah, it costs me as much to grow my medicine as it does to cool my food, and warm my tush. But that’s not 29 refrigerators, which would consume 17.8 kw/h, or, 427.2 Kilowatts per 24 hour period.