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Thursday, 17 September 2009 10:03 |

Author: the gang at BSNHTS |

Here at BSNHTS we have a very special GO GREEN offer!
Trade in your old vacuum tubed computer monitors and televisions on one of
our new flat-panel computer monitors or televisions.

Q: how much money can a new 17" dell flat panel lcd screen save on electricity compared to compared to a large tube model?

i just ordered a new dell computer monitor from dell for $138.00 how much money do you think i'll save compared to a clearmax 17" tube monitor that was made in 1998 considering that both would be on 24/7. (1 answer - asked 20 months ago)

A: I found a great answer for this

and I can't say it better myself.

<snip> "For an example solution (for a CRT) see below:

Time Use – hours/day:  6.5 (to account for sleep time)
Time Use – days/year: (52weeks/yr – 2weeks vacation/yr) x (5days/wk) = 250 
days/year
Monitor Watts: 150
Cost per kWh: $0.07

[(hours/day) x (days/year) x (watts)] / 1000 watts/kW = annual kWh consumption

(kW) x ($/kWh) = annual energy cost

[(6.5hr/day) x (250days/yr) x (150watts)]/1000 = 243.75 kWh annual energy 
consumption
(243.75 kWh) x ($0.07/kWh) = $17 per year
A CRT monitor costs $17 per year in electricity.

Using the above calculations for a flat screen monitor with the following data:
Time Use – hours/day:  6.2 (to account for sleep time)
Time Use – days/year: (52weeks/yr – 2weeks vacation/yr) x (5days/wk) = 250 
days/year
Monitor Watts: 50
Cost per kWh: $0.07
A flat panel monitor costs $5.40 per year electricity. " </snip>

Q: how much money can a new 17" dell flat panel lcd screen save on electricity compared to compared to a large tube model?
A: 17 inch CRT (tubed) computer monitor uses $17.00 a year in electricity while a
17 inch flat panel monitor uses $5.40 a year in electricty...saves desk space too...

Last Updated ( Tuesday, 29 September 2009 12:51 )