Maximum Yield USA April 2018 | Page 51

ENERGY EFFICIENCY All indoor gardening operations are costly to operate, and that cost is exponentially heightened when a large-scale vertical farm operates year-round. The primary financial drawback with vertical farming is that of excessive energy usage (which is also vertical farming’s greatest environmental drawback). As vertical farming operations are 100 per cent dependent on indoor gardening equipment, each facet of these complex gardens requires some form of electricity. The use of LED lights is essential in making vertical farms viable, both financially and environmentally, in the long term. Studies show that LED lighting arrange- ments are 40-70 per cent more energy efficient than those with HPS and MH lights. On that note, forward-thinking vertical farming companies are also implementing solar power systems to lessen their strain on the power grid. The urban agriculture movement is rapidly gaining momentum, yet its overall staying power is largely dependent upon the technology that powers its vertical farming operations. Government entities such as the USDA have taken notice of this trend, and the proposed Urban Agriculture Act dedicates government resources to studying LED technology. All things considered, LED lighting is intimately entwined with the progression of vertical farming on an industrial scale, as its cutting-edge technology makes mass production possible within the confines of indoor cultivation. feature 51