What is the difference between Energy and Power? - ProProfs Discuss

# What is the difference between Energy and Power?

Asked by Lynn , Last updated: Jul 16, 2020

#### P. Halah

P. Halah

More often than not, it is very common to see people using the terms "energy" and "power" interchangeably, but the truth is they are not the same. Also, differentiating between the two can be a very difficult task since both are a bit similar in meaning. One of the ways to differentiate them is by knowing that; if energy is the ability to do work, then power is the measure of the rate of doing work.

Also, power is the amount of energy converted or transferred per unit time. If energy is the ability to move a car point A to point B, then power is the rate at which the energy was used. The basic unit of measurement of energy is joules, whereas the units of measurement of power are joules per second, watt, kgm2s −3. Unlike power that can't be stored, energy can be stored through certain mechanisms.

#### P. Halah

P. Halah

Energy is the ability to do work. There are many exemplars of different types of energy. For example, plants use the energy of the sun to make their food. Energy can mean many different things. These include mechanical, thermal, electrical, and chemical. We use chemical momentum from a battery to deliver current. We expend energy when we are jogging outside when we are weeding in the garden and participating in any other sort of activity that both requires energy as well as cultivates it.

Power, on the other hand, is a concept that measures how fast energy is being used. Energy is what you distribute, and power is the might and speed at which you provide it. For example, a 100-watt bulb will use energy at a faster rate than a fluorescent bulb that only has the power of 10 watts. Power is the gauge at which energy is being used. The unit of energy is joules per second. It is only a measure of how fast energy is being consumed.