How much power does your HDTV use?

CNET took 54 HDTVs and analyzed their power requirements to answer this question. The results are interesting, but not very surprising and include an estimated yearly expense for each. The yearly number is based on leaving your TV on for eight hours a day and sixteen hours in stand-by. While most technologies used similar amounts of power, there were some exceptions like the 65-inch Sharp LCD which uses almost 600 watts of power in their tests. This is more than any of the Plasmas which were around 500 watts for a similar size. In the end the size made the biggest difference and microdisplays overall used the least amount of power. As interesting as we find this, in the grand scheme of things it isn't a lot of money, even the most expensive TV only costs $19 a month to run.

[Via TVSnob.com]

[(Unverified) Posted Sep 27th 2007 10:17AM]

MUCH cheaper than it costs me to run my fish tank 24x7.

[(Unverified) Posted Sep 27th 2007 10:28AM]

$19 a month seems like a lot since my 1500 sq. ft. home's monthly bill is only $60-70.

[(Unverified) Posted Sep 27th 2007 10:29AM]

Wow, that is crazy. My 1800 sq/ft home costs me well over $200 a month every month and I don't even have that TV or leave my TV on 8 hours a day every day.

[(Unverified) Posted Sep 27th 2007 12:25PM]

Jeez Ben, how much is your power per kw/hr? My 2800 sq.ft. house with a saltwater reef (about $45 per month in energy usage) is only about $240 per month during the summer.

[(Unverified) Posted Sep 27th 2007 11:21AM]

Yeah, but I don't watch much TV in the summer, and in the winter, my 50" plasma will darn near keep the heat from kicking on. :D

[(Unverified) Posted Sep 27th 2007 12:28PM]

I use about 90Kw/h a day at ~$.09 kw/h.

I'm not sure why it's so expensive, I do have a lot of electronics, but it still seems high, when you consider I leave my AC on at 78 and don't run it at all during the day.

[JDM Posted Sep 27th 2007 12:01PM]

Eight hours a day is a lot. Basically it's assuming that it gets turned on at 4pm and shut off at midnight.

[(Unverified) Posted Sep 27th 2007 4:10PM]

You know, most people I know who watch TV do something very similar to this. They may not be watching the whole time, but the darn thing stays on for hours on end, day after day.

[(Unverified) Posted Sep 27th 2007 12:50PM]

8 hours a day with TV is pretty high.

Electricity Usage
Total KWH 3319
Bill Period Days 33
Avg KWH/Day 101
Avg Cost/Day $8.45

Temperature Information
Avg Daily High 89
Avg Daily Low 69
Avg Temp 78

I think ours is like .08 kw/hr.

[(Unverified) Posted Sep 28th 2007 1:16AM]

Quite irresponsible I think to make a comment like "in the grand scheme of things it isn't a lot of money, even the most expensive TV only costs $19 a month to run" in these Carbon Emission conscious times....

Or am I just being a killjoy? : )