The U3011 specifications note that power use of 250 watts is maximum, 110 is typical, and standby is around 1 watt. At maximum brightness, the U3011 draws 144 watts.

A 3 Watts average across 20 monitors per year is not nothing. Monitors typically have 3 power levels: On — you’re looking at one. Given that the average North American household uses about 1000 kWh/month, if your monitor were in actual use all month (720 hours) at 40 watts it would use 28800 watt hours or 28 kWh.

In the the video about building a very power efficent computer Anthony states that going from 4k 60hz to 4k 144hz increases the power draw about 5 watts.

110 watts

Most computers are built to use up to 400 kilowatts of electricity per hour, but they usually use less than that. The average CPU uses about as many kilowatts per hour as the typical light bulb. Any computer that’s running on a Pentium-type processor uses about 100 kWh. This is with the monitor off.

A complete desktop uses an average of 200 Watt hours (Wh). This is the sum of the average consumption per hour of the computer itself (171 W), the internet modem (10 W), the printer (5 W) and the loudspeakers (20 W). Assuming that a computer is on for eight hours a day, the annual consumption comes to 600 kWh.

On average, a gaming computer consumes approximately 1,400 kWh per year, or the same amount of energy as ten gaming consoles, six standard computers, and appliances around your home. These estimates can be likened to 25 standard electric power plants.

Simply turning off your PC when it’s not in use can save even more electricity. CNET Labs tested the energy consumption of a mix of desktops and laptops recently and found that a mainstream desktop, on average, uses roughly 100 watts when idle. Under heavy use, that number jumps to 145 watts.

Leaving your computer on while not in use can stress components, thus shortening life. While in sleep mode the computer idles at only 5-10w. Yes, unless you’re downloading or uploading something it’s best to put the computer to sleep for the night.

The logic was that the surge of power when turning the computer on would shorten its lifespan. While this is true, leaving your computer on 24/7 also adds wear and tear to your components and the wear caused in either case will never impact you unless your upgrade cycle is measured in decades.

Force shutdown is safe, but cutting power source is NOT. If you unplug or get power surge or shutdown your computer but turning a power switch, this can damage power supply and possibly motherboards and other components. EDIT: Force shutdown can also have a impact on your data and corrupted system files.

Do not turn off your computer with that physical power button. That is only a power-on button. It is very important that you shut down your system properly. Simply turning the power off with the power switch can cause serious file system damage.

Sometimes it’s the only way, and it’s very unlikely to damage your hardware. All the reading I’ve done on the topic suggests that the worst thing that may happen is that you’ll mash the power button while Windows is busy writing delicate data, which can corrupt the OS and require you to repair or reinstall Windows.

Providing that the cooling is adequate and you’re not over-stressing your Power Supply, a PC should be able to run 24 * 7 without damaging hardware. However, depending on the OS you are running, periodic rebooting may be required.

A forced shutdown is where you literally force your computer to shut off. To shut down when the computer is not responding, hold the power button in for about 10 to 15 seconds and the computer should power down. You will lose any unsaved work that you had opened.

It’s better to hit the restart/reboot button, or to shut it down by holding the power button down for (usually) 5 – 10 seconds. Actually unplugging it causes a small electrical short which can cause a power spike. If your power supply is good, no real problems – it’ll blow before your computer does.

“A restart only momentarily turns the machine off to stop all processes, clear the RAM, and clear the processor cache. Thus, a shut down is better for power consumption and better for prolonging the life of the battery.”

Unless you’re still using a computer that’s over a decade old, the power savings from turning it off every night is negligible, as long as you have it set up to go to sleep when it hasn’t been used for a specific time.

Warning: Remember, if you change the On Battery setting to “Do Nothing,” always make sure your laptop is shut down or in either Sleep or Hibernation mode when you place it in your bag to prevent overheating. You should now be able to close the lid on your laptop without it going into sleep mode.

Depending who you ask, turning off your PC at night is either a good way to save electricity or a good way to speed up the deterioration of your hardware. Or maybe powering down and then up again uses more electricity than just leaving it to hibernate would.

charging the laptop while it is shutdown it’s better for the battery life, and also the laptop won’t heat up as you’ve noticed ,but you can also keep it plugged in while in use but as soon as the battery reaches 100% you should unplug it ,if you want to avoid the heat up ,hope this answer will help.