Does running a fan all day really save money on electricity?
612763
yes fan consume only 100 watt and AC consumes 1000 wattl 10 times less
174043
of course you can, provided you are willing to withstand a little noise while it works.\n\nI run a ceiling fan on a inverter, when the power is off.\n\nBut your switch may not work, as the waveform will change, so the formfactor, nad the motor will not work as it works in mains.
530511
Theoretically the two answers above are correct, but the actual watts that the aircons consume depends on the temperature settings and the room itself. The aircon (compressor) will stop working after reaching the desired temp.If the room has many things that generate heat (kitchen equipment, lighting, people), then the aircons may have to work overtime. In this case "maybe" the 2.5 hp actually consume less energy because it can cool the room faster, or have to work only every 5 minutes.
146836
Absolutely, but you will want to find a linux that has built in power saving settings.  Windows has features that will detect if the computer it is on is running on battery or on direct power.  When on battery, certain things are done to save energy: CPU is run at slower speed, consuming less power and running cooler.  The CPU fan is run less often.  The screen is run at a lower light level.  And the drives are parked and slept when not in use.  All these extend the life of the battery greatly.  You will want to find a version of linux that can perform these functions or the battery life on the notebooks will be very short.  Even more so since the batteries are very old by now.  If you plan on running the laptops on power all the time, then it will come down to your preference as to what version of Linux you should use.
343286
First off..  forget every air conditioner...  all of them.  Then forget your water heaters.  Then, forget almost all your appliances, including the 'fridge. As a matter of fact, for the size house you have, where you are, and what you use it for, forget photovoltaics altogether.  If I were you, knowing what little I know about your situation, I'd probably put up some solar hot water collectors, and maybe look into some wind power.  But it sounds like you are on the grid already...  why do you want solar?  If it's to save money, as they say on the sopranos... 'fuhgedabboutit!!!'  A grid-tied panel or two might give you a warm fuzzy feeling about helping green up the earth or something.. but the reality is that your payoff time is about 20 years on that..  and likely never given your location.  Solar panels get very inefficient when they get hot.. and hot is what you have.  Solar hot water will help some, depending on how much you use.  Go to homepower.org and educate yourself on the reality.  For remote locations it makes sense, but if you already have city power there, it usually doesn't.  Good luck, and be smart.
308043
That depends on which device we're talking about. If it's a TV, then yes, it uses about the same amount of power turned off as if every single light-bulb in your house was turned on. If we're talking about a toaster, the constant loss of energy is so small it is practically impossible to measure. In general, the more complex the device (i.e. the more 'lingering potentials' and wire the device has) the more power it will consume from the outlet when turned off.\n\nActually, even a single piece of wire can be considered a device, and will thus consume power when plugged into the outlet (it also has to hit the right hole, but that is another talk).\n\nedit: Mr. Curious gives an entirely wrong interpretation of current. It doesn't run along the wire, but should rather be considered as a river. If there is no waterfall at the end, there will be no flow - but the water will still very slowly sink into the ground and vaporize into the air.
64773
A typical desktop computer uses about 65 watts. Add another 80 watts for a 17" CRT monitor, or 35 for an LCD. When your computer sleeps ("standby") the the computer uses 3 to 35 watts, while the monitor uses next to nothing. A screensaver that shows any image on the screen doesn't save any energy at all -- you only save energy if the monitor goes dark by going into standby mode. Of course, you can turn the monitor off at the switch too and then it uses 0 watts.\n\nLet's not forget laptops, they use only about 15 watts.\n\nWith most devices you can look at the label to see how much energy they use, but that doesn't work so well with computers because the label gives the theoretical maximum, not the typical amount used. A computer whose label says 300 watts might only use about 60 watts when it's actually running, and only 90 even in peak times with serious number-crunching and all the drives spinning.\n\nTo put this into perspective, a light bulb uses about 75 watts. So a typical computer uses about 1.5 to 2 light bulbs' worth of energy.
620015
Check your power-supply fan.
1116572
Yes, I know what you mean I work 7p-7a.\n\nTry getting a fan I use one of the old fashioned square box fans it may take a little while to get accustomed to but it drowns out alot of the other noises,sounds crazy but it works, there are alot of us at work that use them.
164324
Yes. Easy. Go to  the energy saver in system preferences and regulate the turn off time there.
360016
There are 24 x 31 = 744 hours in a 31 day month.  Check your fan name tag for the rated watts (single speed?).  Multiply the watts times 744 and divide by 1,000 to get KW-Hr (kilowatt-hours) of power per month.  Check your power bill for the charge per KW-Hr.  It should be about 10 to 15 cents per KW-Hr (or KWH), depending upon where you live.  For example if a small fan draws say 20 watts, the calculation would be:\n\n(20 x 744)/1,000 = 14.88 KW-Hr @ $0.10 per KW-Hr = $1.49 per month or about $17.85 per year.\n\nGood luck.
24351
What ever you decide to do, do NOT leave your computer running all the time for no good reason.\n\n1> Would you leave your car running all the time just because your starter or other parts might wear out from turning it on or off?\n\n2> Your computer uses the equivalent of 3-5 light bulbs of electricity. You wouldn't leave 5 lights on in your house all the time without a good reason.\n\n3> Sleep mode stores everything. When the computer "wakes up" it comes back with everything that is in memory (good and bad...) If there was an error in its memory, that comes back too. When you reboot, everything loads fresh.\n\n4> Hibernate is a little better than sleep.  Hardware has a hard time waking up from sleep a lot of times.  Hibernate effectively turns off the hardware completely while it is off.  I like hibernate a lot better than sleep or standby.\n\n5>  Shut your computer down when you are going to be away from it for a long time.  You decide what a "long time" means to you. It's okay if you leave it on all day or for a few hours at a time... Just don't leave it on if you aren't going to be using it.\n\n6> Keep in mind that electronics hate heat.  The hotter they get, the worse they run.  Leaving your computer on all the time subjects it to heat that it just doesn't need.  Under normal conditions, heat isn't a big problem:  The computer deals with it with fans.  However the longer you leave your computer on, the less normal the conditions become.
808740
It depends on how much you use the electricity.
775234
Not knowing anything specific about Texas power and if power is more or less expensive than it is under Westar Energy (Kansas) -- I paid ~$30 a month for power in a 1 bedroom apartment a year ago, and I now pay $40-45 a month for power for a 1000 square-foot house now.  You can always reduce your power consumption by shifting over from incandescent bulbs to compact florescent bulbs.    Were I to shift over to these bulbs, I would probably expect to shave a couple of dollars off of my electricity every month, thus paying for the bulbs with their own savings.
587509
you did right, the fan built in the power supply takes the hot air out, the fan you changed should bring cool air in. Good thinking, logical always wins? Don't pay attention to "jerks" who answer your questions.
14382
Many of the items and services offered do result in lower operating costs, such as insulation, thermal pane windows, caulking, weatherstriping. There are fuel savings from modifications to your automobile and driving habits.\nSome items are not true energy savers, such as expensive flourecent light bulbs that replace the incandesant bulbs in regular lamps. They will reduce your electric bill. However, if you compare the price of the bulbs and the life of the bulbs, you will find the financial savings to be about a wash. On a more global scale the energy to produce these bulbs and the raw material is significantly higher.
1051173
Modern computers and operating systems do not require a daily shutdown. They are stable enough to handle being on for weeks or months at a time in most cases. That said, as long as your computer's on, it's drawing power. This costs money, contributes to global warming, etc. If you're not running a server, there's probably no need to keep it running if you're not actively using it.