The first commercial wind farm was built in 1991 at Delabole in Cornwall; it consisted of 10 turbines each with a capacity to generate a maximum of 400 kW. Following this, the early 1990s saw a small but steady growth with half a dozen farms becoming operational each year; the larger wind farms tended to be built on the hills of Wales, examples being Rhyd-y-Groes, Llandinam, Bryn Titli and Carno. Smaller farms were also appearing on the hills and moors of Northern Ireland and England. The end of 1995 saw the first commercial wind farm in Scotland go into operation at Hagshaw Hill. The late 1990s saw sustained growth as the industry matured. In 2000 the first turbines capable of generating more than 1 MW were installed and the pace of growth started to accelerate as the larger power companies like Scottish Power and Scottish and Southern became increasingly involved in order to meet legal requirements to generate a certain amount of electricity using renewable means (see Renewables obligations below). Wind turbine development continued rapidly and by the mid-2000s 2 MW+ turbines were the norm. In 2007, the German wind turbine producer Enercon installed the first 6 MW model ("E-126"); The nameplate capacity was changed from 6 MW to 7 MW after technical revisions were performed in 2009 and to 7.5 MW in 2010.