Different documents from the European Commission including directives, communications, etc. are available for download:

EU Energy Roadmap 2050
The EU Energy Roadmap was published in 2011. It analyzes a number of scenarios for decarbonizing the European energy sector and identifies ten conditions for a successful decarbonization

Directive 2009/28/EC:
Directive of the European Parliament and of the Council of 23 April 2009 on the promotion of the use of energy from renewable sources and amending and subsequently repealing Directives 2001/77/EC and 2003/30/EC

SEC(2008) 57:
The support of electricity from renewable energy sources

Commission Staff Working Document:
Impact assessment accompanying the implementation measures for the EU's objectives on climate change and renewable energy for 2020

COM(2006) 849 final:
Report on progress in renewable electricity

COM(2006) 848 final:
Renewable Energy Roadmap

COM(2005) 627 final:
The support of electricity from renewable energy sources

COM(2004) 366 final:
The share of renewable energy in the EU

COM(2000) 469 final: 
Towards a European strategy for the security of energy supply: Green Paper

Directive 2001/77/EC:
Directive on the promotion of electricity produced from renewable energy source in the internal electricity market

COM(1997) 599 final :
Energy for the future - renewable sources of energy: White Paper

For further information see the website of the European Commission