Definition:SI/Energy/Kilowatt-Hour

Definition

The kilowatt-hour is an SI unit of energy.

It is defined as being:

the energy expended when a power of $1$ kilowatt is applied for $1$ hour.

$\ds $

$\ds 1$

kilowatt-hour

$\ds $

$=$

$\ds 10^6$

$\ds $

$=$

$\ds 3 \cdotp 6$

$\ds $

$=$

$\ds 3 \cdotp 6 \times 10^6$

$\mathrm {kWh}$

The symbol for the kilowatt-hour is $\mathrm {kWh}$.

Its $\LaTeX$ code is \mathrm {kWh} .

The prefix kilo- derives from the Greek word χίλιοι (khilioi), which means thousand.