The reasons for the slower rates of growth is installed capacity during the rest of the decade are the rapid past capacity expansions and financial bottlenecks to expanding such capital intensive investments at higher rates. In addition, rehabilitation of existing systems, including the improvement of the efficiency of distribution networks, is beginning to receive more attention than in the past, when the focus was more on system expansion. Success in rehabilitation and efficiency improvements would reduce the need to expand capacity in some cases or lessen the problem of power shortage in others. Use of Energy Resources within ASEAN In spite of the earlier practice of not linking indigenous energy availability and economic performance at the national level, new electricity generating capacity was increasingly relying on indigenous resources (natural gas, coal and hydro). Recent events in the Gulf have reinforced this trend. The uncertainty about future oil supplies and prices makes indigenous non-oil resources a more secure choice. For ASEAN countries, the share of electricity generation utilizing coal will be more significant. One can see on the figures (5.1 - 5.2 - 5.3 - 5.4) the coal share increases strongly to more than 40% in 2000 for Thailand and to 20% for the Philippines; it more than doubles compared with 20% in 1987 to almost 50% in 2000 in Indonesia. On the other hand, the share of oil in electricity generation declines in all ASEAN countries. At the end the shares of natural gas increase especially in Indonesia and Malaysia. In Malaysia, gas has replaced oil, significantly, acquiring a share above 60%.
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