Scotland in the Early Middle Ages to be adopted for house building, often combining layers of stone with turf. Place-name evidence, particularly the use of the prefix "pit", meaning land or a field, suggests that the heaviest areas of Pictish settlement were in modern Fife, Perthshire, Angus, Aberdeen and around the Moray Firth, although later Gaelic migration may have erased some Pictish names from the record. Early Gaelic settlement appears to have been in the regions of the western mainland of Scotland between Cowal and Ardnamurchan, and the adjacent islands, later extending up the West coast in the 8th century. There is place name and archaeological
Renewable energy in Scotland most popular energy source for large scale projects in Scotland, with an overwhelming majority (80%) being in favour. In August 2013 Scottish Hydro Electric Power Distribution connected a 2 MW lithium-ion battery at Kirkwall Power Station. This was the UK's first large scale battery connected to a local electricity distribution network. In September 2013 the Scottish Government granted permission for the commencement of the "largest tidal energy project in Europe". MeyGen intends to install a 9 MW demonstration turbine and then an 86 MW array tidal array in the Pentland Firth, with expected completion in 2020. In July 2014 the