Is It More Energy Efficient To Turn Lcd Tv On And Off As Needed, Or Leave It On, Over An 8 Hour Period?
December 5, 2009 by Rich
Filed under Frequently Asked Questions
Philips Digital widescreen flat TV 42″
Ambient temperature 5 °C to 35 °C
Mains power AC 220 – 240 V +/- 10%
Power consumption 232 W
Standby power consumption 0.8W
The thing that STRESSES TV sets is applying POWER to the TV set (turning it on).
I do not recommend leaving it on 24 hours a day, 7 days a week, but I do recommend ON ANY TV SET to avoid ON/OFFING it all day long……
I suggest breaking your viewing habits into large chunks like Morning / Afternoon / Evening and turning it off after your Viewing Chunk is completed….
In other words, if you plan on watching a one hour show in the morning, and an hour later you watch 3 hours in the afternoon, Just leave it on for BOTH……
If you watch one hour in the morning and 4 hours in the EVENING, Turn off the TV set…..
If you watch 1 hour in the morning, 2 hours in the LATE Afternoon and 2 hours in the Evening, leave the TV on for your AFTERNOON /EVENING shows…..
Remember…..Turning it ON is what KILLS PARTS….
Turning it off doesn’t hurt it at all…..
That’s why a lot of my customers tell me “It worked fine last night, but when I turned it on this morning it was dead”
Broadcast Engineer,
A REPAIR of $200 to $500 is more expensive than the $12.00 you would spend running it 16 HOURS every day –EACH MONTH at 10 ¢ per kilowatt hour !
And WHO runs it THAT much a month ?!
You can afford the power costs, but the repair would make you wet your pants……
Turn it on and off as needed.
232 watts when it is on compared to 0.8 watts when it is off is a big difference. Exceptions to turning it off: When you leave the room for less than 5 minutes or when you want to be able to hear the program while you are in another room especially if you are not recording the program.
LCD TV sets — unlike the old CRT TV sets — do not consume a lot of power when they turn on. With the CRT you might have used more energy turning it on and off repeatedly in a short period of time.