Electricity power lines and cooling towers are seen at Eskom Holdings Ltd.'s Kendal power station in Delmas, South Africa, on Monday, Dec. 6, 2010. In the next decade, Eskom will add 10,000 megawatts of generation capacity by starting production from the Medupi and Kusile coal-fired plants and the Ingula Pumped Storage hydropower facility. Photographer: Nadine Hutton/Bloomberg via Getty Images