In 2005 and prior to the final design of the XO-1 hardware, OLPC received criticism because of concerns over the environmental and health impacts of hazardous materials found in most computers. The OLPC asserted that it aimed to use as many environmentally friendly materials as it could; that the laptop and all OLPC-supplied accessories would be fully compliant with the EU's Restriction of Hazardous Substances Directive (RoHS); and that the laptop would use an order of magnitude less power than the typical consumer netbooks available as of 2007 thus minimizing the environmental burden of power generation.