Latest News for Energy Efficiency, Solar, Wind, Biomass Power, Biofuels, Waste to Energy
| Company | Class | Technology | Country | Year | Stage |
| Aqua Marine Power | Tidal | Horizontal Axis Turbine | UK | 2007 | Prototype |
| Verdant Power | Tidal | Horizontal Axis Turbine | US | 2000 | Commercial |
| Marine Current | Tidal | Horizontal Axis Turbine | UK | 2000 | Commercial |
| Turbines | |||||
| SMD Hydrovision | Tidal | Horizontal Axis Turbine | UK | 2003 | Prototype |
| Open-Hydro | Tidal | Open Center Turbine | Ireland | 2006 | Pre- |
| Commercial | |||||
| Hammerfest Strom | Tidal | Horizontal Axis Turbine | Norway | 2007 | Pilot |