SNP plans to generate 100 per cent of Scotland's power from renewable sources by 2020 have been endorsed by seven leading industry figures.
The proposals have been dismissed as "cuckoo" by business leaders, while Labour leader insisted this week that no serious engineer or scientist thought the plans were credible.
But, in an open letter, seven executives say that it is vital that Scotland builds on its current low-carbon industry in order to attract investment in the sector.
Meanwhile, Ignacio Galn, chairman and chief executive of ScottishPower Renewables' parent company, Iberdrola, has described the renewables goal as "entirely credible".
The endorsement have been welcomed by First Minister Alex Salmond, who was campaigning at Nigg Yard in Easter Ross yesterday.
"Our goal of generating 100 per cent of Scotland's own electricity demand from renewable sources by 2020 is ambitious but achievable," Mr Salmond said.