Last month, it was revealed that the cost of the link between renewable energy projects on the Western Isles and mainland Scotland had risen by 75%.

BBC: Talks held on Western Isles subsea cable costs

Last month, the cost of the planned power cable to link renewable energy projects on the Western Isles and mainland Scotland increased by 75%.

BBC: Wave power proposal for Shader in Lewis shelved

The cost of a planned subsea power cable to link renewable energy projects on the Western Isles and mainland Scotland has risen by 75%.

BBC: Western Isles subsea cable costs rise to ?700m