Really they're converting the energy into other forms heat, motion etc. Some energy would be wasted in the conversion process, but it should be possible to get that burning biscuit to run a light bulb for at least a few seconds. All in all, if you're looking to reduce energy consumption it's usually much easier to spend most of your time working in units of kW and kWh. What is the abbreviation for a megawatt-hour? Our biscuits contain a certain amount of energy - 172 Calories or 0. If, at any particular moment, everything in the office building is switched off, that building should be using 0 kW of power. Consider a 10 kW wind turbine.

What is the annual energy usage of an average home in America? So you can look at the average-kW figures from 15-minute and compare them directly with the average-kW figures from 60-minute data or from. The rate at which these things use energy is their power. Archived from on November 7, 2012. Power is measured in watts, or joules per second. Like how the energy stored in oil is converted into heat when you burn it. And they named this unit after James Watt, the Scottish inventor who had an important hand in the development of the steam engine. Both distance and speed are useful measures.

Type in your own numbers in the form to convert the units! And the joule J is a unit of energy. We assume you are converting between kilowatt hour and megawatt hour. And both are closely related. The higher a building's kW, the faster that building is using energy. We assume you are converting between megawatt hour and kilowatt hour. Industrial users may also have extra charges according to the of their load.

But average-power figures smooth out the constant fluctuations of instantaneous power, and make it possible to compare the efficiency of different periods, like for like, without worrying about how long those periods were. Retrieved 9 January 2008; November 26, 2007, at the www. It doesn't make it quite so obvious what power means. I've spent over and counting , on this project. Your instantaneous power is like your speed at a specific instant in time e. Probably the best option would be to eat the biscuit, but hopefully you get the general idea - the biscuit contains energy that can be converted into different forms. Or, if you find it useful, you could buy or recommend our - we really appreciate the customers that keep us in business.

Just like the term watt-hour and kilowatt-hours kWh adds a time element to the terms watt and kilowatt. And, provided we've got a gas or oil burner, we can easily make use of gas or oil. If it's not switched on it won't be using any power i. . The two are closely connected, but we'll get to that shortly. If at any point you'd like to thank us for our help in reducing headaches and embarrassment, please point your colleagues and website visitors towards this article so that it can help them too. A megawatt is an instantaneous measure of power whereas a kWh is a measure of power used over time and so the two measurements, while related, are measuring different things.

The distance between New York and London is fixed, but you can express that distance as 3,459 miles, or 5,567 km, or 18,265,315 feet etc. Conversions may rely on other factors not accounted for or that have been estimated. It's just a question of choosing the units you want before you click one of the buttons to create a chart or table. The standard unit of energy is the joule and can be derived in a number of ways; the most common one is force multiplied by distance. Your monthly energy bill will report your usage with this metric, and when evaluating energy upgrades such as a solar installation, companies will talk about what size your system would need to be in kW in order to meet your kWh needs. Energy calculations, and energy saving, become much easier when you understand the difference between a kW and a kWh.

A television consuming 100 watts operating for 10 hours continuously uses one kilowatt-hour. If you try to monitor instantaneous power you get lost in the noise. For example, a battery stores energy. Really they're converting the energy into other forms heat, motion etc. Consider a laptop: at any one instant it might be using 50 W of power, or 30 W of power, or 43 W of power, or any similar such value. Although the above example arrives at 8,640, this figure is inexact owing to the rounding done in the problem. And people often don't make the distinction between average power and instantaneous power.

People are constantly switching things on and off, and many items of equipment within the building have instantaneous power that is constantly changing too. My brother's car does an average of 41. Energy, by the way, has the same units as work and heat, and can be expressed in terms of ergs, calories or British thermal units, depending on the nature of the problem to be solved. Though it only seems simple after you understand it. Before using any of the provided tools or data you must check with a competent authority to validate its correctness.

To link to this energy megawatt hour to kilowatt hours online converter simply cut and paste the following. Light bulbs are a simple example: if you have a 100 W light bulb you know that it will use 100 W of power when it's running 100 W of power being the same as 0. Or you can instantly compare the average kW from last month with the average kW from yesterday and the average kW from the whole of last year. The link to this tool will appear as: conversion. Select the current type either the single or three phase according to the units to be converted. .

These charges are billed as demand changes. If you don't have a formal background in physical science, this unit is likely to be confusing. But biscuit energy is not in a form that we can easily use to run the equipment in our buildings. . That's 0 kW of instantaneous power.