Primary-energy Definition

Primary-energy Sentence Examples

• Although solar power is an alternative source of clean energy, there are many challenges that still stand in the way of it being used on a wide enough scale to actually replace the use of fossil fuels as a primary energy source.

• This system takes over as the primary energy source, however using a more efficient fuel system than in the past.

• The body's primary energy source is glucose, a simple sugar resulting from the digestion of foods containing carbohydrates (primarily sugars and starches).

• This works as ketosis turns fat into your body's primary energy source.