Waar wacht je nog op? Download meteen ons megacool e-book met 5 praktische infographics! Ontvang je gratis e-book. Om deze website optimaal te kunnen gebruiken dient u javascript in te schakelen. Got a question about energy? Ask it here! Ask a question or search for an energy term. Home consumption and rates consumption what do watt and kwh mean? What do watt and kWh mean? The difference is quite simple, but many people muddle them up.
Watts W A watt W is a unit of measurement of power. Examples: an incandescent lamp has a power of 60 W your microwave oven has a maximum power of W The watt, as its many variations — kilowatt, megawatt, etc. The more powerful a device is, the higher the number of watts.
Kilowatt hours kWh A kilowatt hour kWh is a unit of measurement of energy. One kWh is one kilowatt generated or consumed for one hour. For example, if you use a Watt 0. Electric utilities measure the electricity consumption of their customers with meters that are usually located on the outside of the customer's property where the power line enters the property. In the past, all electricity meters were mechanical devices that a utility employee had to read manually.
Eventually, automated reader devices became available. These meters periodically report electricity use to utilities from mechanical meters with an electronic signal. Now, many utilities use electronic smart meters , which provide wireless access to the meter's power usage data, to measure electricity consumption in real-time.
Some smart meters can even measure the electricity use of individual devices and allow the utility or customer to control electricity use remotely.
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You can also compare your home energy use to the energy generated with your Enphase microinverter system. Read on below or watch the video here. While watts and watt-hours are related terms, they are not the same thing. A watt W is a unit of power , and power is the rate at which energy is produced or consumed. Think of watts as a measure of electrical flow. Does an electrical device need a big flow or a small flow to work?
Utilities typically charge you for electrical energy by the kilowatt-hour kWh , which is equal to 1, watt-hours. Depending on your interconnection agreement, your utility may credit you for excess generation which will also be measured in kilowatt-hours.
MyEnlighten displays the amount of energy generated by your microinverter system in watt-hours. For example, an Enphase microinverter system might generate kWh amount in the month of September period of time. A kilowatt-hour kWh is 1, Wh, so kWh is , Wh. In some cases, MyEnlighten will display energy as megawatt-hours MWh , which is one million watt-hours.
In a nutshell, watt-hours measure amounts of energy for a specific period of time, and watts measure rates of power at a moment in time. A common analogy for watts and watt-hours is speed and distance. Speed is a rate of how fast you drive at an instant in time watts ; distance is the length, or amount that you drive over a period of time watt-hours.
For example, if you drive at a constant rate of 60 miles per hour for one hour, then you will have traveled 60 miles. Similarly, if a 60 W light bulb is on for one hour, then that light bulb will have used 60 Wh of energy.
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