| Punjab New and Renewable Sources of Energy (NRSE) Policy             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        India             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Emissions standards for light-duty vehicles             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Australia             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Québec Drive Electric Program             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Canada             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Emission Quality Standard for New Vehicle L3 Category (Ministerial Regulation No.23             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Indonesia             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | 12th Five Year Plan for National Strategic Emerging Industries             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        China             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Act on the Allocation and Trading of Greenhouse Gas Emissions Rights regulated by Enforcement Decree of Allocation and Trading of Greenhouse Gas Emissions Rights Act             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Republic of Korea             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Electricity Purchase from Small and Medium Scale Renewable Energy and Excess Power (No. 4             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Indonesia             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Feed-in premium for photovoltaic systems (Conto Energia V)             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Italy             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Feed-in premium for renewable energy sources other than photovoltaic             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Italy             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Presidential Decree on Measures to Ensure Affordable and Comfortable Accommodation and Quality of Housing and Communal Services             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Russian Federation             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Financial support for investments in cross sectional technology             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Germany             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Law 12,651 on Forest Cod             | 
                                                                                                        
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             | 
                                                                                                        Brazil             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Forest Innovation Program             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Canada             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Fuel Quality Information Standard (Ethanol E85) Determination             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Australia             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Fuel Standard (Ethanol E85) Determination             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Australia             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Fuel excise tax             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        China             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Act on Purchase of Renewable Energy Sourced Electricity by Electric Utilities (Law No. 108 of 2011)             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Japan             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Air Quality Standards GB 3095             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        China             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Innovative Strategy for Energy and the Environment             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Japan             | 
                                                                                                        2012             | 
                  
              
                                                                                                        | Act Partially Amending the Law on Special Tax Measures (Tax Reform Act)             | 
                                                                                                        
             | 
                                                                                                        
             | 
                                                                                                        Japan             | 
                                                                                                        2012             |