In Greece
much research is being done on renewable energy sources.
Solar, wind and geothermal energy have the lion's share in investing,
For more information about energy exploitation see:
http://www.investingreece.gov.gr/default.asp?pid=36§orID=38&la=1
http://philippeio.wordpress.com/2008/12/19/ape/
http://www.iea.org/country/m_country.asp?COUNTRY_CODE=GR