World Energy Outlook 2017 (Executive Summary)

Four large-scale shifts in the global energy system set the scene for the World Energy
Outlook-2017 (WEO-2017):

• The rapid deployment and falling costs of clean energy technologies; in 2016, growth
  in solar PV capacity was larger than for any other form of generation; since 2010, costs
  of new solar PV have come down by 70%, wind by 25% and battery costs by 40%.
• The growing electrification of energy; in 2016, spending by the world’s consumers on
  electricity approached parity with their spending on oil products.
• The shift to a more services-oriented economy and a cleaner energy mix in China, the
  world’s largest energy consumer, subject of a detailed focus in this Outlook.
• The resilience of shale gas and tight oil in the United States, cementing its position as
  the biggest oil and gas producer in the world even at lower prices.