How much is the difference in electricity costs per year if you have a notebook 16 hours a day instead of a PC with a screen?
Compared to what? A laptop is a PC with an integrated screen.
It stands there… Notebook (ie with battery - only at the socket while it is off for charging).
Can't be answered.
It depends on what the PC has for components and what you do with it.
Both don't take much when idling.
Anything between -200 euro and 800 euro.
Depends on individual electricity needs.
You can take the best you can get as standard… And then some inexpensive version
And what do you do for 16 hours? That's the most important. 16 hours full load on both systems?
So to make it realistic… Only PC + screen less than 1000 euro new price and also laptop less than 1000 euro new price… But then the most energy-saving on the market
yes 16 hours full load. And the notebook is only connected to the network in the 8h off-time, of course only drawing power for as long as it takes to charge.
As I said, if you only surf the web 16 hours a day, it consumes significantly less electricity than 16 hours of video rendering, gaming or mining bitcoins.
Edit: Ok, saw your edit.
You determine the power consumption of both devices, is on the nameplate
you can count on the information
Inquire the labor price from the supplier or read the last invoice
Pc with 1000 watt power supply and 2 high-performance graphics cards and 5 hard drives uses approx. 650 watt per hour
notebook with spar cpu with a small screen and energy saving plan uses 45 watts per hour.
turned around:
high-performance gaming laptop with the currently fastest GTX 2080ti and fat 17 inch monitor, RGB lighting and i9 or XEON processor… Consumes 450 watts per hour
and
a desktop PC with a simple Intel Celeron CPU, 1 SSD, integrated graphics and no drives, 2 fans use 120 watts.
called:
You can't answer at all
The best laptops you get have 230 W power supplies. These are real bricks. If you then operate it under full load with a battery, it will be empty in 30 - 45 minutes. That means 8 hours without a network is definitely not feasible.
Strong desktop PCs easily have 500 W - 600 W power supplies or more. 500W consumption under full load is a realistic value.
The monitor may need 25 - 35 W.
Of course, a desktop PC with this performance will work faster than a comparable laptop. That means he gets more done in the 16 hours.