What is the base unit for power?

Answer 1

The kilowatt.hour (kWh)

More details

No matter whether we are talking about electrical work or mechanical work, in engineering all measurements of actual work done are measured as the power used over a period of time.

The standard unit used to measure power in electrical engineering is the kilowatt and time periods are measured in hours, so the work done is measured in kilowatt.hours (kWh).

Exactly the same unit is used to measure amounts of energy used.

The energy transfer from a source of power to produce an end-result of work done can never be 100% efficient so the energy used (measured in kWh) will always be more than the actual work done (also measured in kWh).

A further fact

In the United Kingdom, electricity companies charge their customers by the unit. The term 'unit' is short for the obsolete expression 'Board of Trade Unit' and is a measurement of electrical energy, equivalent to a kilowatt hour. So, 1 unit = 1 kW.h.

Answer 2

Kilojoule/hours The units of power are the units of energy divided by time.

The SI unit of power is the watt (W), which is equal to one joule per second.

Answer 3

Power is the rate of energy consumption.

It is commonly measured in kilowatts: kW

Answer 4

The SI (metric) unit of power is the watt, which is defined as one joule per second.

Answer 5

1 watt = 1 joule per second = 1 newton-meter per second = 1 kilogram-meter2 per second3

Answer 6

The base unit for power is the watt (W). Power measures the rate at which work is done or energy is transferred.