energy efficiency | iowa

HDTV High Energy Televisionarrows

Most LCD and plasma televisions use energy wisely; however, these sets, reaching up to 103 inches in size, are giants compared to tube TVs, and it takes more energy to light their screens. Some large HDTVs consume more electricity than a standard kitchen refrigerator.

Get more energy efficiency from an HDTV:
  • Buy an ENERGY STAR®-qualified television, which uses about 30 percent less energy than other sets. The EPA has tougher ENERGY STAR 3.0 specifications for televisions, forcing them to have home (less bright) and retail (bright demo) settings to make it easier to reduce power consumption. ENERGY STAR-compliant 32-inch HDTVs must operate on less than 121 watts, and 50-inch models on less than 391 watts.
  • Lower the brightness and contrast levels of a plasma or LCD television, which will lower the amount of energy used. Similarly, most LCD TV sets have adjustable backlights that consume less power when turned down. Many newer LCD models offer backlights that automatically adjust to use less power projecting darker shots.
  • If you’re not actively watching the television, turn it off. And if you have a tendency to fall asleep with the TV on, set the TV’s timer function to turn off the set when requested.
  • Watching TV at high sound volumes takes more energy, so turn it down and save. If you run the audio through a separate amplifier, use it only for DVDs and programs that showcase the technology.
  • Turn off television accessories, such as VCRs, DVD players and amplifiers, after using them.
  • Cut the room light to make a screen look brighter and reduce light bulb use.
  • If choosing a TV based solely on energy consumption, there are two rules of thumb: first, the smaller the HDTV the less energy it will use; and second, LCD televisions generally are more energy efficient than plasma televisions.


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