The list of EU-approved sustainable fuel sources should be expanded to meet the higher targets for second-generation biofuels under the updated renewable energy directive, according to the advanced biofuels industry. An early draft of the EU’s upcoming renewable energy directive, seen by EURACTIV, confirms the bloc’s objective of roughly doubling the share of solar, wind and other renewables by the end of the decade, to reach 38-40% of Europe’s total energy mix. The leaked draft also includes an increase in the renewables target for transport, from 14% to 26%, and an increase in the sub-target for advanced biofuels, from 3.5% to 5.5%.