I've been curious about something...
Every time I fire a new section on my grow shelf, I think in the back of my head... How much is this costing me every month? Currently I'm running 16 40 watt Fluorescent bulbs for my plants. My electric rate is $0.0971 per kWh. My bulbs right now run for about 15 hours a day and there are 31 days in this month. Oh god how did I get stuck in a math problem?
1 40 watt bulb is .04 kWh, times 16 bulbs equals .64 kWh for my entire setup.
15 hours times 31 days equals a running time of 465 hours.
465 running hours times the .64 kWh is 297.6 kWh a month to run the entire setup.
297.6 kWh times the cost of $0.0971 equals $28.90 a month for my hobby.
I would love to expand my hobby out more, but the cost is always in the back of my head. Having 3 times the plants I do now with the current space management would run me about $100 a month in just lighting... Man I wish I had space for a greenhouse, or even to keep some of the plants outside without them getting damaged.
What about you guys? How much do you think your hobby costs per month to run? Does that become a limiting factor first, or does physical space stop you instead? Hehe or are you lucky to have the sky as the limit for both? 8)