-The underlying question is how electricity is best produced now and in the years to come.
-Between 1990 and 2016 electricity demand doubled. It is expected to roughly double again by 2050.
-The Intergovernmental Panel on Climate Change has stated that at least 80% of the world's electricity must be low carbon by 2050 to keep warming within 2°C of pre-industrial levels.
-At present, about two-thirds of electricity is produced from the burning of fossil fuels. All low carbon sources of energy are needed to successfully replace fossil fuels in the system.