The holiday season is a time of joy, cheer, togetherness, … and big spending. You can expect to shell out some money for gifts, food, travel, and family get-togethers. However, when you’re planning your holiday budget, don’t forget to include electricity. Those Christmas lights need power and can result in a higher energy bill at the end of the month. By using our simple formula, you can estimate the energy cost of all that holiday cheer.