Covenanters, and was searched multiple times by government soldiers. In the 18th century John Howie became a biographer who recorded the lives of Covenanting martyrs in books published from 1775 onwards. In 1896 a stone obelisk was erected nearby as a monument "in memory of John Howie, author of the Scots Worthies"; this is accessible by the tracks leading from the visitor centre. A small museum at the farm holds relics of Covenanters, check for opening arrangements. Extensions In May 2009, the Scottish Government granted permission for an extension to the wind farm to produce up to a further 130 megawatts of power, which would increase the total generating capacity of Whitelee to 452 MW. In 2010 a 75 turbine extension commenced, adding an additional 217 MW of capacity, enough to power the equivalent of over 124,000 homes. This brought the total generating capacity of the wind farm up to 539 MW. Additionally, the extension added a further 44 km of trails to the site. John Sisk and Son Limited and Roadbridge were jointly appointed as Principal Contractors for the site during construction with Alstom Limited erecting and commissioning the wind turbines. In August 2012 Scottish Power announced that it was applying for a further small extension of five turbines on the west of the existing site, adding 12 MW of capacity. This was refused by the DPEA on 19 Oct 2016. A £21 million (US$29.35 million) 50MW/50MWh grid battery is being added to improve resource utilization, with plans for a 40 MW solar farm and a 20 MW hydrogen electrolyzer. Incidents On 19 March 2010 a blade snapped off a turbine, resulting in temporary suspension of operations while safety checks were completed on all other turbines on the site. Following the accident Keith Anderson, managing director of ScottishPower Renewables, said: "This type of incident is exceptionally rare and highly unusual." In March 2017 a turbine lost its nose cone, the entire site was closed until such time as the remaining turbines could be checked and tested. On 29 March 2017 a Spanish worker died falling from a turbine while it was undergoing maintenance. See also Wind power in Scotland List of onshore wind farms References Gallery External links Official website 2009 establishments in Scotland Buildings and structures in East Renfrewshire Buildings and structures in South Lanarkshire Buildings and structures in East Ayrshire Wind farms in Scotland Tourist attractions in