Watt hour definition

Knowing the difference between a watt (W) and a watt-hour (Wh) helps you understand the impact of your home energy use on your electric bill. You can also compare your home energy use to the energy generated with your Enphase microinverter system.

A watt-hour (Wh) is a unit of energy; it''s a way to measure the amount of work performed or generated. Household appliances and other electrical devices perform "work" and that requires energy in the form of electricity. Power companies typically charge you for electrical energy by the kilowatt-hour (kWh), which is equal to 1,000 watt-hours.

MyEnlighten displays the amount of energy generated by your microinverter system in watt-hours. For example, an Enphase microinverter system might generate 400 kWh (amount) in the month of September (period of time). A kilowatt-hour (kWh) is 1,000 Wh, so 400 kWh is 400,000 Wh. In some cases, MyEnlighten will display energy as megawatt-hours (MWh), which is one million watt-hours.

Knowing about watts and watt-hours can give you a greater appreciation of the energy savings on your utility bills. You can compare the electric bills you received before you installed your Enphase Microinverter system to your current bills and calculate your energy savings, and in turn your monetary savings. You can also calculate how much money you spend on home energy use. For help with these calculations, search for "energy usage calculator" on the Internet.

Kilowatt-hours are used for households due to more energy consumption by the appliances and tera-watthours is used for measuring even larger entities such as for any business enterprise or the whole country''s energy consumption.

The main difference that lies between watt and watt-hour is that the watt is a unit of power that measures the energy needed for an electrical device to operate by indicating the rate of electricity flow over one second.

About Watt hour definition

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About Watt hour definition

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