UK wave power far too costly, warns energy research body

ETI says technology is 10 times dearer than other low carbon power sources and UK should prioritise tidal stream

An embryonic industry trying to harness the UK's waves to generate clean electricity has been dealt a significant blow by a warning that the technology is too costly.

Wave power devices being tested in Cornwall and at Orkney are 10 times more expensive than other sources of low carbon power and need a radical rethink, the Energy Technologies Institute (ETI) said.