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  1. At some point, I would imagine LED’s would be a more practical lighting source for an operation that large. Right now LED’s are prohibitively expensive compared to HID’s. But HID’s are terribly inefficient by comparison. Hopefully not too far down the road, LED’s will will make more sense. Some Dutch growers have already made the switch.

  2. What about selling all that waste heat? With industrial businesses waste heat can be quite useful. I remember reading an issue of High Times, I think in the 80’s, about a gourmet lettuce growing facility that sold its waste heat to the factory next door.

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