BBC - 22 May 13
The Scotsman - 22 May 13
BBC news - 8 Feb 13
BBC - 3 Mar 12
The Herald - 15 Feb 12
BBC - 14 Feb 12
The Telegraph - 6 Sep 11
CNBC - 5 Sep 11
ReNews Americas - 3 Aug 11
The Scotsman - 14 Jul 11
BBC - 14 Jul 11
STV - 13 Jul 11
BBC - 19 May 11
Oregon Business - 26 Apr 11
BBC News - 23 Mar 11
Newport News Times - 25 Feb 11
Energy of Orkney - 24 Feb 11
The Scotsman - 23 Feb 11
New Energy World Network - 22 Feb 11
Istockanalyst - 6 Dec 10