ability vs electrical energy

ability

noun
  • Physical power. 

  • A unique power of the mind; a faculty. 

  • A skill or competence in doing; mental power; talent; aptitude. 

  • The quality or state of being able; capacity to do or of doing something; having the necessary power. 

  • The legal wherewithal to act. 

electrical energy

noun
  • Energy made available for consumption or consumed in the form of electricity or electric power; electricity. 

How often have the words ability and electrical energy occurred in a corpus of books? (source: Google Ngram Viewer )