For the most commercial buildings, the use of energy is the single largest operating expense. It represents somewhere around one-third of the typical operating budgets of the businesses. So, the concept of commercial energy rating came into existence. Knowing the facts and figures, the companies can not only become more energy efficient, but they can also increase their profits, reduce their operating expenses, increase their property asset value and stretch the operating budgets much further. While there are various ways that you can resort to for the betterment of the environment outside, starting in a place that you occupy every day has the potential of having long-term results. So the first and foremost thing to do is identify sustainable alternatives that where the energy is being used. Find if there are upgraded, energy-efficient versions and whether you can use different settings on the equipment. Secondly, assess the purpose of every area that includes fi...