As you watch the period increases in your bill year after year, you may be wondering what causes the change. The truth is that electricity is a complex commodity the same as natural gas or oil, and prices can continuously change, especially since they can also be influenced by something like global markets. Besides flipping the switch to turn on your lights, there is a lot that goes into the process itself from the equipment that is used to generate your power to the delivery system. This means that there are a couple of different factors, both small and large, that could impact the price of the electricity you pay, even if you are charged based on the seasonal demand. Supply and their Costs No matter the type of materials that are used to generate your electricity , such as nuclear, coal, or oil, it comes down to the supply and the price of that supply. As with any other commodity, the amount that is available for public use can vary from one day to the...