As an example, I wanted to use my phone. The charger uses 45watt. So if I charge my phone for arround 3 hours daily, which I think is normal for me, then I use 0.135kwh! (45 * 3 = 0.135).
With 0.135kwh, I could turn on my led stripes for arround 100+ hours!
Another example would be my car. If I drive 3 hours straight, it would use 720kwh, as it has 240+- kw.
The calculation for kwh is:
Watt x Hours
Before we discuss kilowatts, let’s take a second to talk about watts (W). Watts are the basic unit of power used to measure electric, thermal, and mechanical power. One watt is equal to one joule, as well as one volt-ampere. All of these terms measure electrical power.
Now, let’s get into a more detailed description of what a kilowatt (kW) is. Most simply, a kilowatt is another term used in the measure of power. Most frequently, we use kilowatts to measure residential and commercial power.
Keep in mind that the prefix “kilo” means one thousand. It may be easier for you to remember that one kilowatt equals 1,000 watts of electrical power when thinking of the prefix’s meaning. For example, a microwave with a 1,000-watt label requires 1,000 watts worth of power (or 1 kW) to work.
An LED-lamp with 6 watt, which is used for 750 hours per year, consumes 4,5 kWh.
6W x 750 hours = 4500 Watthours / 1000 = 4,5 kWh
An LED-TV with 100 watt, which is used for 1000 hours per year, consumes 100 kWh.
100W x 1000 hours = 100'000 Watthours / 1000 = 100 kWh
A vacuum cleaner (Staubsauger) with 1400 watt, which is used for 50 hours per year, consumes 70 kWh.
1400W x 50 hours = 70'000 Watthours / 1000 = 70 kWh
An electric bicycle with 500 watt, which is used for 100 hours per year, consumes 50 kWh.
500W x 100 hours = 50'000 Watthours / 1000 = 50 kWh.
This is the calculation:
Watt x Hours = Consumption of Electricity in Watthours / 1000 = Consumption of Electricity in kWh
A radio with 15 watt, it plays music for four hours, consumes 0.06 kWh.
The math behind it: 15 W x 4 h = 60 Wh (0,06 kWh).
What can you do with 1 kWh?
- About 133 slices of toast in a toaster oven
- Leave an energy-saving lamp burning for about 90 hours
- About 50 hours of working actively on a laptop
- Watch about 7 hours of TV
- Iron about 15 shirts
- Run a refrigerator with a capacity of 300 liters for about two days
- Do about one wash cycle with the washing machine
Hello everybody, here you can click to my self-made crossword puzzle!
www.kreuzwort-raetsel.com/raetsel/crossword-217
Check your knowledge about my task "soil salinization";
Kahoot!
Here you have a little crossword about soil:
Link to crossword