World Primary Energy Demand by Fuel (IMAGE) DOE/Pacific Northwest National Laboratory Caption World primary energy demand of hydro and other renewables, nuclear, biomass, gas, coal and oil. Credit International Energy Agency, World Energy Outlook 2006 Usage Restrictions must credit source License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.