Are flat screen monitors significantly more energy efficient than CRT types to actually lower your elec. bill?

Question

I have a Compaq 16 inch CRT monitor (MV740) and I really want to know if it is that cost effective to go out and buy a flat panel monitor of the same size (or slightly larger) to reduce my energy consumption because, hey, oil prices are not going down anytime soon and the electricity bill is just on an upward swing!

Answer 1

looks like you've already gotten some really good information here so I'm just going to chip in two cents regarding average lifespans of equipment. You should keep in mind that it's not uncommon for a $90 CRT to have a lifespan exceeding 7 years. Last time I checked flat panel monitors where still having longevity issues due to single screen elements burning out over time, leading to dead pixels on your screen. It's possible that the industry has addressed this problem but if so I haven't heard anything about it. Point is, flatscreens are nice and might save a little electricity but they're still substantially more expensive than their bulkier cousins and don't tend to last as long.

Answer 2

You asked for specific information regarding the energy cost savings and pay-off time for a flat screen vs. a CRT monitor.

First you need to consider time usage. How often do you switch on your monitor? Hours used per day?

Secondly, compare 2 specific monitors for their wattages.

Thirdly, the price charged per kW by your electricity provider.

First, you need to calculate the kW used per year for each monitor. The energy usages can then be converted into costs by multiplying by your energy rate.

The difference between the two costs reflects the cost savings you will recoup after using a flat screen (instead of a CRT) for one year. You can apply this annual savings to the price difference between the two models to determine how long it will take to pay off the more expensive flat screen.

The following websites help you to calculate the electricity used for our computer appliances and tips on shaving off rising electricity bills.

http://www.eere.energy.gov/consumer/calculators/homes.cfm
http://www.energystar.gov/index.cfm?c=bulk_purchasing.bus_purchasing

Excel file to calculate the power consumption
http://www.energystar.gov/ia/business/bulk_purchasing/bpsavings_calc/Calc_monitors.xls

This is a very useful Excel file for calculation.

Other Notes:
Be careful when using specific energy savings figures from a Manufacturer. There are many factors that go into these final figures, so anything quoted is just an estimate, and Manufacturers have an incentive to make their product more attractive.

While some of the energy used by a CRT is generated as heat, a CRT is generally not as efficient as a real heater. For heating purposes it will still be more efficient to spend those kW on a heater not a CRT.

While the EPA Monitor Power Management Calculator is helpful in computing cost savings on the basis of certain criteria, this calculation does not allow you to calculate costs based on monitor type.

Hope this helps. - chip

Answer 3

It usually only makes a difference for big companies with many, many monitors.

My company is slowly replacing our old CRT monitors because we were having issues with the amperage of our electricity - with the old CRTs we were having lots of brownouts which effected the CPUs. Now that we have replaced some of them, that has started going away.

Answer 4

Flat screens tend to use less electricity, but you should consider the price of the new monitor before purchasing it. Why spend $$$ to save a few ¢¢¢ ???

Answer 5

I don't think changing your monitor is going to significantly alter your electric bill. Try only running the dryer in the evening... turn the thermostat up a bit... up a bit more when you aren't home... turn off lights, open windows if it's cool enough outside... major appliances are what run up the bill... not computer montiors

Answer 6

Yes, but slightly

LCD monitors use 1/3 less energy than a standard one

They are also better for your vision

Answer 7

yes, it could help lower your electric bill, crt monitors use 200+watts of power while lcd monitors uses 80watts... it would really lower your elec. bill

Answer 8

a thanks to sparkling ur show screen is to diconnect it, then fill the pool with water. the second one project you need to do is to spill 50% Petrol in to the pool. then you definitely ought to gently positioned your show screen into the pool, and go away it for 40 seven hours so as that the gas interior the petrol may make some sturdy result to the show screen floor. Then u ought to take it out of there, and heavily position it in a warm oven of about 350°C, and go away it for 17 minutes 37 seconds (if u keep it more suitable or a lot less, ur show screen may get damaged!). even as the show screen is interior the oven, prepare a mixture of 27.fifty 4% Water, 31.22% Alcohol, 40-one.24% Milk to fill in a huge bowl that ought to take the show screen. After 17 minutes 37 seconds, heavily take the show screen out of the oven and slowly insert it into the alchomilky mix, then go away it for about 20 minutes in basic terms to sit back it down. then you definitely ought to sparkling the show screen to get rid of any aspects interior, and omit to dry interior the solar for about 24 hours. on the subsequent day, take interior the show screen and sparkling it with a sparkling piece of cotton fabric wettened with some alchohol, than plug the show screen in, and right here we bypass!!! sturdy success in ur experience