top set boxes pensioners, page-21

"Surely a $300-400 credit towards a HD ready LCD TV that uses far less power than the old style CRT screens would be more sensible. "

A very good and often forgotten point...
I remember a noticable power bill reduction when I switched a sigificant number of CRT screens on computers and TV to LCD...

It is not only significantly lower power consumption but also much less heat given off for LCD compared to CRT, a big plus for some multi-terminal circumstances...
This lowers the requirement for cooling but in the circumstances of a single TV that is probably not too significant.
I seem to remember some 30% less heat from LCD but I could be corrected..


This is a quick link that gives a comparison for power consumption>,
I am sure there are many more with similar and more accurate and up to date comparisons...

Read more: CRT TV vs. LCD TV Power Consumption | eHow.com http://www.ehow.com/about_5398279_crt-lcd-tv-power-consumption.html#ixzz1LwfzoYD7

By an eHow Contributor

updated: January 26, 2011


CRT vs. LCD: Power Consumption

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According to an article by Alan Hedge at Cornell University, LCDs use less power and save more energy than comparable CRT displays. When comparing a 15" LCD monitor with a 17" CRT monitor (which has an equal amount of viewing area), the LCD monitor used 55 watts less when operational (25 vs. 80) and 2 watts less when in standby (3 vs. 5). LCD screens also consume less power when returning from standby mode than CRTs.

LCDs will use less power than CRT televisions, which means a little less money spent on power. That's also better for the environment, if you're into the green movement.







And another older article with some more figures to indicate approximate usage...

http://www.audiocircle.com/index.php?topic=54308.0

Power consumption - plasma vs. LCD vs. CRT TVs
? on: 5 May 2008, 10:28 PM ?

A recent issue of "Real Simple" magazine listed some annual power consumption statistics for a variety of electronics equipment. The ones that interested me were the kW hours and annual cost estimates for each type of TV (plasma, LCD, CRT). The results are summarized below (for TVs smaller than 40"):

ITEM Annual Energy Use Annual Cost
Plasma TV 441 kWH $48.25
CRT TV 123 kWH $13.46
LCD TV 77 kWH $8.42

My question is: why do plasma TVs use more energy than a comparable size LCD? I'm assuming that plasmas are more power-hungry than CRTs because they are "partially on" all the time unless unplugged. But how does an LCD achieve higher efficiency ratings than either?

Any insight on this issue would be most appreciated,

-dB (a unit measure of noise)

P.S. I mention the source of the data because I can't confirm its accuracy or the assumptions that go into their estimates.