So your saying it would cost me $75 a month for 1k. One has the 1k watt bulb and balast, plus a smaller 400w kit. Just wanting to get ideas for a flower room for the babies and trying not to be cost effective.youre prolly gonna spend the cost of electricity to run your 1k light for two months, on a weeks worth of mj....
http://www.amazon.com/Hydrofarm-1000-Budget-Light-System/dp/B001DVW4KE/ref=sr_1_14?ie=UTF8&m=A1O863TZYF0C7N&s=home-garden&qid=1296002122&sr=1-14Solar power would be at the mercy of the sun, your plants would be stress'd from the random off's and on's. I know the balast would not like it at all either.. under load, off and on withought a cooldown time etc.
What I can suggest is to look up guirilla growing.. just use a small fluorecent light to start them, and then plant them outside. And you may want to check the price of the 1k watt bulb and balast before you worry about the cost of the power to run it.
Very well put and accurate my friend...definitely for one who is going to operate a grow for the medical market commercially it would be very doable and feasibleMost consumer solar panels are approx a sq. metre of space that can at maximum produce about 180-300W of power, therefore you would need about 4 sq. metres of solar panels to drive the grow, not ideal. And as was mentioned the ballast might not compliment it. Overall you really need to spend a lot of money and have the place to put it. Perhaps a generator but then at best you would get a gas one, not fuel. And it's noisy with fumes to deal with. I have looked into this before, I would need to spend about £18000 to get sorted and then I would still be hooked to the grid but only for my shortfall coverage. Any extra leccie produced on good days can be sold back to the power company but you may not have that option in the crumbling republic.
It's a tough one and only worth doing large, in which case a small personal grow is never going to justify it, unless you incorporate the rest of the household.