RSS
Mon, 17 Jul 2006
5:28 PM - Damn it costs a lot to run a pc
I've been reading online about electrical usage. Assuming 10 cents per kWh, it costs roughly 15 dollars a month to leave 1 pc on all the time with monitor. That's assuming you have a fairly energy efficient system. I calculated 400 watts for 2 "servers" based on other info on the web about modern systems and estimate it costs us 28.8 dollars a month to run the electricity. That means we don't save any money by running our own servers as i thought we would. That doesn't even take into account for buying hardware, etc. Of course without something to calculate electrical usage, i can't be certain what it really costs. My mother's figure of 20 dollars a month when she started turning her pc off makes sense now. Her monitor isn't very efficient. Also, watching a movie on tv can use the same amount of power as a computer. Something to think about next time you leave the tv on.
In contrast, to run a 13 watt light for 8 hours a day would only cost 31 cents (is that right?) 13 watt * 8 hours * 30 days / 1000 then * .10 cents per kWh
To run our netgear gigabit switch costs around 1.30 a month (24/7) if it always consumes its maximum wattage of the ac adapter. I believe its rated less though.
If caryn left her monitor on all the time and it didn't go into sleep mode it would cost around 2.15 a month. (estimating 30watt, although it might be 45) My monitor would cost over 8.5 dollars! (crt) If I were to run my monitor for one year always on it would cost 100 dollars. In two years time, I could have bought a 150 dollar lcd that runs at 30 watts and still saved 15 dollars (plus covered the cost of electricity for it)
LCDs are sounding better all the time. Using my monitor 10 hours a day thats 4.5 dollars a month. It would take quite awhile for it to make a difference vs buying an LCD.
In contrast, to run a 13 watt light for 8 hours a day would only cost 31 cents (is that right?) 13 watt * 8 hours * 30 days / 1000 then * .10 cents per kWh
To run our netgear gigabit switch costs around 1.30 a month (24/7) if it always consumes its maximum wattage of the ac adapter. I believe its rated less though.
If caryn left her monitor on all the time and it didn't go into sleep mode it would cost around 2.15 a month. (estimating 30watt, although it might be 45) My monitor would cost over 8.5 dollars! (crt) If I were to run my monitor for one year always on it would cost 100 dollars. In two years time, I could have bought a 150 dollar lcd that runs at 30 watts and still saved 15 dollars (plus covered the cost of electricity for it)
LCDs are sounding better all the time. Using my monitor 10 hours a day thats 4.5 dollars a month. It would take quite awhile for it to make a difference vs buying an LCD.
0 comments