IN the developed economies of the world—Canada, USA, Japan and Western Europe—demand for electricity grows at about 1 percent or 2 percent a year maximum and in some cases reduces over time due to more efficient end-user practices—energy-saving light bulbs, for example. In developing economies such as China, India and Latin America, demand grows at a faster rate (up to 3 percent or 4 percent per year) on the assumption that economic development will include industrial development as well as generating employment and higher incomes for people to, for example, increase the number of those who can afford to buy and use refrigerators and air-con units. Development forecasts for South Africa, for example, indicate that if household income increases from $500/month to $1500/month, then twice as many people would be able to afford refrigerators, thus boosting demand for electricity.