- Tidal Power is renewable
- Doesn't cause pollution, doesn't need fuel
- A tidal barrage is very expensive to build
- Only works when tide is going in or out
- A tidal barrage affects a large area
- There are very few places that you could sensibly
build a Tidal barrage
- Underwater turbines may be a better bet than a barrage
- they are cheaper and don't have the huge environmental impact.
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