Programmable Thermostats and Energy Use
According to Nest, thermostats make up about 50% of your energy bill, and 10% of all American energy is controlled by thermostats.
The Environmental Protection Agency says that programming a thermostat can cut heating and cooling costs by 20%. However, a study showed that 90% of programmable thermostats are infrequently or never programmed.
Nest: Learning Thermostat for Energy Savings
To solve this problem, Nest developed a “learning thermostat” that creates a schedule based on your behavior. After a week, you’ll have a personalized thermostat schedule based on the Nest’s questions and your heating and cooling habits.
You can program Nest either by changing the temperature on the thermostat itself, or by adjusting it remotely from your computer, smartphone or tablet.
Nest has activity sensors, which it uses to sense whether or not people are in the building. The Auto-Away feature will automatically reduce heating and cooling when no one is home, saving energy.
Nest also uses wi-fi to track the weather, so it can learn how you adjust temperature based on weather conditions.
You can track your building’s energy usage with the Energy History feature, which shows your energy use each day. It tells you whether you've saved energy from temperature changes, Auto-Away or the weather.
Also, Nest displays a green leaf every time you’re saving energy.
Buying and Installing Nest
Nest is easy to install. In fact, Nest claims that if you can install a light fixture, you can install Nest. However, Nest can be purchased with installation if desired.
Also, multiple Nests can be installed in one home for zone heating and cooling. They will work together to save energy.
The thermostat is $249, and currently only available in the U.S. As of February 9, 2012, Nest is sold out due to high demand – but there is a waiting list.
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