[Margaret Pilkington]

I looked at a site where the efficiency of these objects was measured....it is quite a while ago now, and I can't remember which site itwas(ah the joys of getting older)....but the figures were abysmal for the outlay.......and it was noted that they could not be turned on in certain conditions.
While I accept that tides come and go, isn't it possible for the electricity which is generated by the tides to be stored?....and at least the tides are going to turn up twice each day....without fail...which cannot be said of the wind.