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Every now and then companies realize that investing in doing things efficiently saves them money. And its good to hear that they are investing in solar arrays on top of warehouses because roofs are the best place to put them. The space is free and its also where the juice is needed so no need for transmission lines (like from massive a coal or nuclear). I have heard that 25-35% (don't quote me on that) of all power produced gets lost in those high tension lines.
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