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2. Efficient energy use - Wikipedia

   en.wikipedia.org/wiki/Efficient_energy_use

   Common energy efficiency label on appliances to indicate their energy efficiency in a clear manner. Efficient energy use, or energy efficiency, is the process of reducing the amount of energy required to provide products and services. There are many technologies and methods available that are more energy efficient than conventional systems.

3. Atmospheric thermodynamics - Wikipedia

   en.wikipedia.org/wiki/Atmospheric_thermodynamics

   Atmospheric thermodynamics is the study of heat-to-work transformations (and their reverse) that take place in the Earth's atmosphere and manifest as weather or climate. . Atmospheric thermodynamics use the laws of classical thermodynamics, to describe and explain such phenomena as the properties of moist air, the formation of clouds, atmospheric convection, boundary layer meteorology, and ...

4. Energy efficiency - Wikipedia

   en.wikipedia.org/wiki/Energy_efficiency

   Luminous efficiency, a measure of how well a light source produces visible light; Fuel efficiency, the efficiency of converting potential energy in a fuel into kinetic energy; Energy efficiency in transportation, the fuel economy of various modes of transportation; Energy-efficient landscaping, a type of landscaping designed for the purpose of ...

5. Thermal efficiency - Wikipedia

   en.wikipedia.org/wiki/Thermal_efficiency

   In general, energy conversion efficiency is the ratio between the useful output of a device and the input, in energy terms. For thermal efficiency, the input, , to the device is heat, or the heat-content of a fuel that is consumed.

6. Energy conversion efficiency - Wikipedia

   en.wikipedia.org/wiki/Energy_conversion_efficiency

   Energy conversion efficiency (η) is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The input, as well as the useful output may be chemical , electric power , mechanical work , light (radiation), or heat .

7. Double-Height Spaces—What They Are and Why You Should Ask ...

   www.aol.com/double-height-spaces-why-ask...

   May Be More Energy Efficient. In some cases, double-height spaces can even be good for your wallet. In the summer, hot air rises and helps with ventilation in the home, while in the winter, large ...

8. 5 ways people stayed cool before air conditioning was invented

   www.aol.com/weather/5-ways-people-stayed-cool...

   The hot, rising air would then escape through windows near the ceiling to create a natural airflow. Architects also incorporated front porches onto houses to give homeowners some relief from the heat.

9. How To Prep for Winter Energy Bills: 7 Affordable Home ... - AOL

   www.aol.com/finance/prep-winter-energy-bills-7...

   With home heating costs expected to rise this winter by an average of 10.5% from last year, according to the National Energy Assistance Directors Association (NEADA), now is the time to find ways ...