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Ebb and flow


I read with considerable interest the article on tidal power generation. It is very good to see that innovation is alive and well since one sometimes begins to wonder.

The fluctuation in output will clearly be a problem and the solution of multiple units and computer control will undoubtedly overcome this difficulty. But it seems to me that such units could have wide applicability in remote locations where perhaps only one unit would be required to supply the power needs.

Could the fluctuations be taken out by something as crude as a flywheel? Since all the electrical components will have to be sealed into the unit, I imagine that mechanical parts could similarly be protected.

P Riddington (M), P & T Riddington, 22 Sheraton House, Castle Park, Cambridge CV3 0AX.

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