Providing effective feedback can empower users to change their behaviour and take the necessary actions to reduce their energy consumption.

In recent years, various interactive systems and visualization techniques have been proposed to promote energy saving by encouraging people to compare their energy usage data with those of others, as well as with their own historical usage data.

In recent years a growing number of information visualization systems have been developed to assist users with monitoring their energy consumption, with the hope of reducing energy use through more effective user-awareness.