What is the difference between power and energy

People always seem to consider Energy and Power to be the same. They even make the mistake of thinking 'Energy and Power' as synonyms. Well, one cannot even be blamed of finding a similarity between Energy and Power as they are interrelated.

While energy is 'joules', power is 'joules per second'. Well, in another words Power is 'watt' and Energy is 'watt-hour'. Another difference is that energy can be stored whereas power cannot be stored. While energy comes with a time component, Power is an instantaneous quantity.