This book focuses on one of the core topics of European Union energy policy: the increase and support of renewable sources for electricity production. It looks at the practicalities that are being addressed as renewable energy does indeed become a significant part of the energy supply mix: renewables are now the third largest contributor to global electricity production. Developments in energy policy in a range of key countries with focus on barriers and drivers towards further expansion of renewable sources and how those developments helped or hindered growth in the use of renewables are analysed in detail from various perspectives. Additionally issues such as how policy developments have affected relations between the various actors in the energy supply chain are also considered.