Renewable energy
UNEP - Global Trends in Sustainable Energy Investment 2010 / (summary)
REN21 - Renewables 2010 Global Status Report / (summary)
EREC - RE-thinking 2050, a 100% Renewable Energy Vision for the European Union

Wind energy
EWEA - Wind energy targets for 2020 and 2030
EWEA - Wind Energy Factsheets 2010

Solar energy
EPIA - Global Market Outlook for Photovoltaics Until 2014