Megawatt Valley was due to the presence of Ferrybridge C (1966–2016), Eggborough (1967–) and Drax (1974–) coal-fired power stations. This is one of the few remaining concentrations of British coal-fired generation, the power stations are located close to historic coal-mining sites on the South Yorkshire Coalfield and to the River Aire. Drax is a large power station capable of generating 7% of UK electricity demand and, despite being the UK's cleanest and most-efficient coal-fired power station is Europe’s biggest single source of carbon dioxide emissions. The term Megawatt Valley, in relation to the Yorkshire power stations, has been mentioned ("What ever happened
Richard Drax Ireland. His great-uncle was the celebrated writer and playwright the 18th Lord Dunsany, and his maternal grandfather was General the Lord Weeks. His first wife ("divorced" 1997) was Zara Legge-Bourke, younger sister of the royal nanny Tiggy Legge-Bourke, relations of the Earl of Dartmouth. Drax married his second wife; Eliza, daughter of Commander James Dugdale (related to David Cameron); Drax has remarried and has four children in total. At least six of his ancestors, including John Samuel Wanley Sawbridge Erle-Drax and the 17th Lord Dunsany, were Members of Parliament for Dorset and Gloucestershire between the 1680s and 1880s. A cousin