Question

kilowatt hour is the unit of
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Answer 1

Answer:

Electricity costs for most commercial buildings are based on both the maximum power and the total amount of energy you use. Power and energy are different concepts, with very different costs, yet financiers, journalists, and pretty much everyone struggles to differentiate them. We will try to explain the difference in this post.

Let’s start with energy. Energy is a measure of how much work it takes to do something. It takes a fixed amount of energy to lift a can of soda from a table to your mouth. Your body burns calories, which is a form of chemical energy, to be able to lift that soda to your mouth. It turns that energy into gravitational energy, that is, if you dropped the soda from the height it is at your mouth it would create a louder thud when it hit the floor than if you knocked the soda off the table. The soda can has more potential energy when it is up high at your mouth than down low on the table.

The scientific unit of energy is the Joule. It takes about 1 Joule of energy to lift a can of soda from a table to your mouth. It doesn’t matter if it takes you a second to lift that can of soda to your mouth, or if you spend an incredibly boring minute slowly, slowly lifting that can to your mouth. It will take the same amount of energy: 1 Joule.

Explanation:

Answer 2

That's a measure of power. If you use one kilowatt of power for an hour, you have used 1 kilowatt-hour, abbreviated kWh, of energy. One kilowatt-hour is equivalent to the energy of 1,000 joules used for 3,600 seconds or 3.6 million Joules.