 
 <prompt> Abeg, na hydroelectric power plants or lignite dey generate pass power for DEI? <response>: Energy production for Greece dey mostly controlled by Public Power Corporation wey dem dey call DEI. For 2009, DEI supply 85.6% of all energy wey Greece need, but e drop to 77.3% for 2010. Almost half (48%) of DEI power na from lignite, wey be small drop from 51.6% for 2009. Anoda 12% dey come from Hydroelectric power plants and 20% from natural gas. Between 2009 and 2010, energy production from independent companies increase by 56%, from 2,709 Gigawatt hour for 2009 reach 4,232 GWh for 2010. 