A small Orkney business helping to develop tidal energy is celebrating after winning a major UK prize.
Tidal power is seen as a way of reducing greenhouse gas
Scotrenewables won the award from an environmental fund called Springboard, set up by Shell UK to support ideas to combat climate change.
Awards are made for efforts that are innovative, commercially viable and that could lead to greenhouse gas reductions.
Scotrenewables said the national win was a "huge boost" for the company.
Scotrenewables had already won £40,000 by securing the Scottish prize and the money will help research tidal energy potential.
Now its UK prize is a trip to Shell's Reykjavik hydrogen facility in Iceland later this year.
Stromness-based Scotrenewables managing director Barry Johnston said: "This is a huge boost for our company and will allow us to expand our business.
"This award will recognises our great technology and will be a great springboard for us.
"Shell Springboard is a fantastic scheme and I pay tribute to Shell for setting it up.
"The funding from Shell Springboard will allow us to push forward our development plans for 2006 and beyond."
James Smith, chairman of Shell UK, said: "As demand for energy grows, so does the pressure on businesses like ours to do everything we can to tackle climate change.
"We created Shell Springboard as part of our UK social investment programme to encourage and reward firms whose ideas will have a positive impact on the environment, but also make good commercial sense.
"I think the finalists show that there are some truly great minds out there who know how they can make a valuable difference."
Formed in 2002, Scotrenewables has researched both wind and marine renewable energy.