The world's most powerful tidal turbine - but can our grid handle it?

There's a familiar chorus of criticism when it comes to renewable energy - what happens if the sun doesn't shine or the wind is calm?
But that certainly isn't the case when it comes to tides, which always ebb and flow.
The UK has some of the strongest tides on Earth, so what role could tidal energy play in the government’s plan to decarbonise our system?
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