Several of these factors are listed here. First and foremost, the cost of energy is driving the market to look for an alternative. As energy costs continue to rise and energy harvesting technology continues to advance, the economics of utilizing energy harvesting become more and more favorable. There is also a desire to be ecologically responsible or eco-friendly. Energy harvesting has this appeal and consumers are willing to pay for it. Governments around the world are encouraging the use of energy harvesting through incentives.