I have 3 suggestions:
1) New homes need to be increasingly off-the-grid including wind powered, with geysers solar powered
2. Massified power stations ar ebecomign obsolete. Neighborhoods need to develiop their own micro-power stations. For this, a mini portable reactor (such as the one from Toshiba: http://blog.wired.com/gadgets/2007/12/toshibas-home-n.html) can be used.
3. Increasing vigilance and disciplined use of energy by ball consumers, with incentives/penalties to save/conserve. In time these may become laws and taxes to force compliance.
ABOUT this time last year, South Africans were coming to terms with the reality that the country was facing a crisis because Eskom did not have enough electricity capacity to meet demand.