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Kilowatt-Hour vs. Kilowatt

So how does this relate to your energy bill? Your bill is asking you to pay for the energy that you have used during the period and it is measured in the number of Kilowatts Kw running for an hour kW x h , or a KWh.

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This means that if you run your kettle for an hour then you will use 3 KWh of energy. If you run your smart phone from the power network for a whole day then you will use 0.

Erin Explains Energy – kilowatts vs kilowatt hours

Bringing this back to energy a KWh is equivalent to watts used for one hour, which is 3. The KWhr on your electricity bill is therefore purely the energy that has been delivered to your property over the period of the bill. This is defined by the meter readings at your property, which record the energy that passes through the incoming electricity cable on to your property. In the UK electricity is billed in pence per kWh. This then means that we can calculate our costs and manage our energy use, which allows us all to be greener, leaner and sustainable!

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kilowatt-hour (kWh)

What is a Kilowatt Hour and how does this relate to my electricity bill? In order to get any work done energy , you need to apply power for some time. So, if I use power over a period of time, I consume energy.


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Remember that energy is measured in joules — which is the use of one watt for one second. Well, it turns out that those who originally put in our electric metrology forgot all about their physics class or thought the notion of joules was too complicated. So they invented a brand new energy measure instead.

Alexisonfire-Happiness By the Kilowatt

So we should be paying for our electricity by the mega joule instead of the kilowatt-hour. Of course, if we really wanted to return to the old imperial system of units as created by James Watt , then we should be measuring electricity by the horsepower-minute. I fully expect that most readers will by puzzled by my nerdy rant.

To that I offer the following thought.

You were expecting 1, miles? During his tenure at Transcrypt, he also served as VP of Product Development and VP of Engineering where he was responsible for engineering, research and product development for wireless communications products, cellular telephony, wireline telephony and land mobile radio, data security and specialized digital radio products. Tagged with: weird world wireless comms. I thought i was going crazy when i saw that mistake!

This is best demonstrated with raising an object 1m.

The force acting is gravity or the weight of the object and if the distance is 1m then the energy gained is the weight of the object measured in Newton Metres, which is the same as a Joule. Most applications need to understand the power, rather than the energy, required to do the work. Power is a function of the energy delivered per second, which is joules per second, which is known as a watt. One thousand Watts is known as a Kilowatt or kW. Kilo is derived from a Greek word meaning thousand, you will see it used as a prefix in many day to day scenarios, kilobytes, bytes in computing, kilohertz, Hertz for frequency, kilometre meters or distance.

Recognisable power quantities include a smart phone that uses around 0. This last figure nearly is the same as raising a 10,Kg one meter every second, which is quite a lot of energy used quickly!

How Much is a Kilowatt of Energy?

So how does this relate to your energy bill? Your bill is asking you to pay for the energy that you have used during the period and it is measured in the number of Kilowatts Kw running for an hour kW x h , or a KWh. This means that if you run your kettle for an hour then you will use 3 KWh of energy.


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