Engineering News 6 December 2011.

The renewable energy targets outlined in South Africa’s Integrated Resource Plan (IRP) 2010 would add an average incremental cost of around $660-million to South Africa’s yearly electricity bill up to the year 2044 unless financial instruments were found to offset those costs, President Jacob Zuma has warned…

http://www.engineeringnews.co.za/article/mechanisms-sought-to-offset-incremental-costs-of-sas-renewables-roll-out-2011-12-05