How much electricity does a television use?

Answer

In the United Kingdom, most televisions use about 80 to 400 watts, depending on the size and technology. Using a sample cost of 15 ¢ per kilowatt-hour and five hours of viewing a day, your television is most likely to use up approximately £1.83 to £9.13 per month of electricity.
2 Additional Answers
Throughout the eight hour test period, electricity used in the five plasma TVs averaged a kilowatt hour rating of 2.94.
Different types and sizes of television sets will use different amounts of electric. A Plasma 56 inch tv will use about 340 watts while a 19 inch CRT will only use 90 watts.
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