| Area of expertise or interest | Resource Group | 
        
          | Large scale hydro (>20MW) |  | Want to join this resource group? |  | Hydro | 
        
          | Small scale hydro (up to 20MW) |  | 
        
          | Micro-hydro (1.25MW or less) |  | 
         
           |  |  | 
        
          | Tidal flow |  | Want to join this resource group? |  | Ocean | 
        
          | Tidal barrage |  | 
        
          | Wave |  | 
        
          | O T E C |  | 
        
          |  |  | 
        
          | Photovoltaic |  | Want to join this resource group? |  | Solar | 
        
          | Solar thermal |  | 
        
          |  |  | 
        
          | Onshore wind |  | Want to join this resource group? |  | Wind | 
        
          | Offshore wind |  | 
        
          |  |  | 
        
          | Landfill gas |  | Want to join this resource group? |  | Biogas | 
        
          | Sewage gas |  | 
        
          | Anaerobic digestion |  | 
        
          | Coal mine methane |  | 
        
          |  |  | 
        
          | Energy crops |  | Want to join this resource group? |  | Biomass | 
        
          | Forestry/agricultural residues |  | 
        
          | Gasification / pyrolysis of waste |  | 
        
          | Solid waste |  | 
        
          |  |  | 
        
          | Gasification / pyrolysis of waste |  | Want to join this resource group? |  | Energy Technology | 
        
          | Fuel cells |  | 
        
          |  |  | 
        
          | Bio-fuels |  | Want to join this resource group? |  | Fuel and Heat | 
        
          | Combined heat & power |  | 
        
          | Other thermal technologies |  | 
        
          |  |  |