Why doesn't Eishkom look at this kind of thing?
http://www.hgenergy.com/current+.html
It's a turbine that hangs underneath a floating pontoon. Basically, hydro power without needing to build a dam. Our bigger rivers like the Orange, Vaal and Tugela have plenty of water year round. Arrays of 20 or so 350kW units (a 20 unit array would be 7MW) at multiple key points along these rivers could generate substantial power.
http://www.hgenergy.com/current+.html
It's a turbine that hangs underneath a floating pontoon. Basically, hydro power without needing to build a dam. Our bigger rivers like the Orange, Vaal and Tugela have plenty of water year round. Arrays of 20 or so 350kW units (a 20 unit array would be 7MW) at multiple key points along these rivers could generate substantial power.