I believe tidal power is the best alternative source of energy ,that needs to be developed by all the nations to satisfy human demand for fuel especially as fossil fuel declines (as predicted by hubbert Peak theory). It is along term source of electricity, renewable and with alow operating Cost. Lets join countries like china! Am pleased to know thtat Russia,Scotland are already commited and S.Africa is not left beind! What about America? Can you imagine how many tones of coal will be saved? This will largely decrease the out put of greenhouse into the atmosphere. Lets talk about Tidal power,it time for real change.