Renewable energy in Scotland expensive to install, could be enough to provide almost half the total energy used in Scotland. Plans to harness up to 4.8 GW of the potential in the inner Moray Firth and Firth of Forth were announced in January 2010. Moray Offshore Renewables and SeaGreen Wind Energy were awarded development contracts by the Crown Estate as part of a UK-wide initiative. Also in 2010, discussions were held between the Scottish Government and Statoil of Norway with a view to developing a 5-turbine floating windfarm, possibly to be located off Fraserburgh. In July 2016, RSPB challenged development in the Firth of
Pentland Firth referring to the sea lanes of the entire west coast of Scotland down to Kintyre. One version of the 9th-century "Historia Brittonum" states that "the Britons originally filled the whole island with their peoples from the English Channel to the Sea of Orcs". On the Caithness (southern) side the Firth extends from Dunnet Head in the west to Duncansby Head in the east, while on the Orkney (northern) side from Tor Ness on Hoy in the west to Old Head on South Ronaldsay in the east. In the middle of the Firth are two significant islands, Stroma and Swona. The