Electric Energy Calculator

Calculating electrical energy from voltage and amperage, or power, and time. Electric power is calculated as the product of voltage and amperage. Electric energy, in turn, is the product of electrical power and time. Power is measured in watts; there are, of course, several different common units for time. Watt-seconds and watt-hours are commonly used for electrical energy, with watt-seconds also referred to as joules. Except for time measurements, prefixes such as kilo and mega are commonly used for all of these quantities.
The formula for energy is E = P * t, or in the case of electrical energy, E = U * I * t. Please specify either the voltage and current or the power, as well as the time or the energy. All other values ​​will be calculated from these.

Example: at a voltage of 20 kV and an amperage of 80 mA, the electrical power is 1600 W. If this is provided over a time span of 2 hours and 25 minutes, the electrical energy amounts to just under 3.9 kilowatt hours or 13.92 megajoules.

Electrical energy is a quantity that can be accumulated and consumed again, similar to mass or a number of equal parts. This is in contrast to, for example, power. Storing electrical energy requires special methods; for example, it can be converted into chemical energy, as is the case with accumulators and batteries. Another option is conversion into potential energy, as in pumped-storage power plants. Electrical energy is also what is billed for when consumed and compensated for when generated, often under the name electricity price. The common billing unit is the kilowatt hour. Electrical energy is consumed, i.e. converted into other forms of energy, for example by electrical appliances in the home. Electricity is best generated from clean energy sources such as solar, wind power, and hydroelectric power plants.