 In 2008, 47.6% of Croatia's primary energy production structure comprised use of natural gas (47.7%), crude oil (18.0%), fuel wood (8.4%), hydro power (25.4%) and other renewable energy sources (0.5%).In 2009, net total electrical power production in Croatia reached 12,725 GWh and Croatia imported 28.5% of its electric power energy needs.The bulk of Croatian imports are supplied by the Krško Nuclear Power Plant in Slovenia, 50% owned by Hrvatska elektroprivreda, providing 15% of Croatia's electricity.