Wind power in Greece was due to expand by 352% by 2010 to meet the European target of 20% coverage of energy needs from renewable sources. Previously, there were 1,028 wind turbines installed throughout Greece and the number was set to reach 2,587 wind turbines before the end of 2010.
According to the Ministry of Environment and Public Works, the system would have a nameplate capacity of 3,372MW of power from wind alone compared to 746MW at the end of 2006. Greece chose to invest primarily to wind power by 77%, while the rest of renewable sources altogether comprise the remaining 23% of production with hydroelectric power being second with 11%.
The solar energy development in Greece started in 2006 and was skyrocketed from 2009 onwards because of the high feed-in tariffs introduced and the corresponding regulations for domestic applications of PVs on rooftops. However this mechanism overheated the market creating a big deficit of more than 500 million euros in the Greek "Operator of Electricity Market". Because that boom in the market couldn't be sustained, since August 2012 new regulations have been introduced including a temporary tax imposed to all operating PV plants (residential applications excluded), licencing of new PV projects have been put on halt and the feed-in tariffs were drastically reduced.
Development of solar power in Greece has been proposed as a way of getting Greece out of debt. Greece has proposed the largest to date anywhere in the world solar power plant, 3,000–10,000 MW, Project Helios, to be built in sections, in locations to be determined. By December 2013, the total installed photovoltaic capacity in Greece had reached 2,419.2 MWp  from which the 987.2 MWp were installed in the period between January–September 2013 despite the unprecedented financial crisis. Greece ranks 5th worldwide with regard to per capita installed PV capacity. It is expected that PV produced energy will cover up to 7% of the country's electricity demand in 2014.