page_title: Primary energy
section_title: Outlook
hierarchical_section_title: Primary energy / Outlook
caption_attribution_description: English: Primary Energy outlook 日本語: 一次エネルギーの予測 Español: Perspectivas de Energía Primaria
context_page_description: Primary energy is an energy form found in nature that has not been subjected to any human engineered conversion process. It is energy contained in raw fuels, and other forms of energy received as input to a system. Primary energy can be non-renewable or renewable.
  Where primary energy is used to describe fossil fuels, the embodied energy of the fuel is available as thermal energy and around 70% is typically lost in conversion to electrical or mechanical energy. There is a similar 60-80% conversion loss when solar and wind energy is converted to electricity, but today's UN conventions on energy statistics counts the electricity made from wind and solar as the primary energy itself for these sources. One consequence of this counting method is that the contribution of wind and solar energy is under reported compared to fossil energy sources, and there is hence an international debate on how to count primary energy from wind and solar.
  Total primary energy supply is the sum of production and imports subtracting exports and storage changes.
  The concept of primary energy is used in energy statistics in the compilation of energy balances, as well as in the field of energetics.
caption: Primary energy outlook. Projected from 2007 (EIA, 2010)
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