feasibility

She said the company recently did a feasibility study and identified an initial 77 sites in the U.S. that would be suitable for the commercial wave energy.

All fail to meet basic criteria for their feasibility and potential environmental risks, they say.

The UK and Scottish governments jointly funded a £1.5m feasibility study called Project Willow which looked at alternative uses for the Grangemouth site.

But the proposal raised immediate concerns over its feasibility and intent.

Both the UK and Scottish governments have pledged millions of pounds to support the site, while the results of a £1.5m feasibility study - looking at potential low-carbon alternative uses - was published in March.