One of the best ways to conserve energy at home is to figure out where you're using the most power, and a home energy monitor puts that knowledge at your fingertips. Whether you opt to monitor your power use outlet by outlet or go for a home energy management system with all the bells and whistles, knowing how much power you're using and where can help you cut your energy use to save money.
Like most green technology, home energy monitors run the gamut from simple to complex. You can buy simple monitors to track the energy use in a single outlet or install a full-on home energy monitoring system. You plug the monitor into a standard outlet and it communicates with your smart power meter to tell you how much energy you're using at home, in which room, and at what times of day. Some can even track it down to the individual outlet [source: General Electric].
The device sends all of that data to your computer, so that you can see where you're wasting the most energy. Some home energy monitoring systems can even send energy data straight to your smart phone and allow you to wirelessly control devices to reduce your home's energy consumption on the fly [source: Ellis].