Google Nest Thermostats
The Google Nest Smart Thermostat has saved over 39 billion kWh of energy in millions of homes worldwide. Because it learns from you. It gets to know the temperature that you like when you’re at home. And turns itself down when you’re away. It even learns how your home warms up or how draughty it is, so it only uses the energy it needs. That’s how the Nest thermostat saves energy.