Welcome to the built-in savings calculator. This tool can help you estimate how much household water, energy, and money you can save by taking some of the simple steps suggested on the Do Your Part page of this website. These steps can help conserve water and energy, keep the air clean, and save a little money. See how much you can save! Then take the online Pledge to Take Care of Texas. Our built-in calculator can show you ways to save time, energy, and money! It's easy, give it a try.