Archive for the ‘Tidal renewable energy’ Category

Tidal – Introduction

Friday, June 5th, 2009

 

Marine Current Turbines Ltd's SeaGen rotor systemMarine Current Turbines Ltd's  'tidal current turbines' conceptMarine Current Turbines Ltd's SeaGen turbine

Electricity generation from tidal stream has the big advantage that the output can be reliably predicted even though the strength of the tidal stream varies throughout the day. Various designs are being developed including propeller blades driving a generator (an underwater wind turbine), aerilon shaped wings that move up and down, and sets of sails turning on a conveyor.