The Nest thermostat, recently released its third edition and can save homeowners up to 10 to 12 percent on their heating bills. However, a new, self-learning system being refined by a German startup and architect and sustainability expert Werner Sobek promises energy savings for homeowners that more than double those of the Nest.

A collection of wireless sensors that monitors and controls home heating and cooling, the alphaEOS system can potentially cut energy usage by 40 percent, according to Sobek, by not just reacting to user's habits and preferences, but by also factoring in climate and weather data.

More details here.