1. The energy challenge for meeting millennium development goals;United Nations,2005
2. WEC. Focus on blackouts. London: World Energy Council. Available from: [accessed 29.06.07].
3. National transmission grid study;Abraham,2002
4. Prospects for distributed electricity generation;CBO,2003
5. IESO. Distributed generation. Toronto, ON: Independent Electricity System Operator. Available from: [accessed 22.05.07].