The Severn is the UK’s longest, and most dramatic river. It has the second largest tidal range in the world. Twice a day, the tide drives a massive body of water up the funnel shaped river estuary, creating a strange and beautiful wave. The Severn Bore. It is, quite literally, the stuff of myths and legends. It could also be harnessed to produce 5% of the UKs entire electricity supply. I wanted to find the answer to a simple question – should the river Severn be harnessed for it’s renewable energy?Cast: Tom Allan