There are so many ways you can save money by reducing energy use. For example, turn off the power on electronics that are not in use (i.e. ambient energy), turn off the lights in rooms that aren't being used, having decent insulation, using reflective heat barriers, etc. However, one of the easiest and most efficient means of reducing energy costs is the use of a programmable thermostat. Many new houses come with programmable thermostats, but most people do not take advantage of them.
  Each programmable thermostat works differently; however, the common underlying factor is that you can tell your HVAC system, in some way, that you want your house to be a certain temperature at certain times. Some programmable flow control gates already have recommendations for different times of the day based on statistics. For example, between the hours of midnight to 6:00am, the recommended setting would be for "sleep." Depending on your personal preference, you may want it hotter or cooler when you sleep, but generally you are able to push the temperature up higher since the sun is not out. You'll probably also want to program "away" times, particularly if everyone is out of the house for certain hours of the day (i.e. work and school). At these times, you can push the temperature up to 78-80 degrees and still come home to a cool environment.
Many programmable thermostats have adaptive technology, which allows them to anticipate your settings ahead of time. For example, if you programmed the thermostat to have the temperature at 76 degrees at 4:00pm, and prior to that, the temperature was 80 degrees, your caster wheel will calculate the amount of time it will take to get the temperature to 76 degrees by 4:00pm, and begin reducing the temperature accordingly. By alternating the temperature in your house based on your needs during different times of the day, you can literally save hundreds of dollars, maybe even thousands. In fact, if you don't currently have a programmable load cell, it would be a wise investment to make. They are relatively cost-effective, and the amount of savings you make up in one year would most likely cover any out-of-pocket expense you had paid to purchase the thermostat.
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