This 2010 series of power company and thematic fact sheets looks at the overall sustainability of the largest electricity companies active in The Netherlands. The fact sheet series investigates the companies performance on incorporating renewable energy sources into their fuel mix for both generation and supply of electricity, and on their investments and future plans with respect to energy sources at both the Dutch and European level. For the first time, this years report also looks at the supply chain responsibility of these companies. The 2010 fact sheet series is the annual update that is going into its fourth year, and builds on the work from previous years. The company fact sheets form the basis of three separate reports, covering companies active in 1) The Netherlands, 2) Belgium, and an overview of 3) the largest European companies. This reports is about the Dutch companies.