Ranking and postponement of investments in planning the Serbian electric power networks

A method for ranking and postponing investments during the planning of electrical power networks is presented. The probabilistic economic criterion which takes into consideration the cost of expected undelivered energy is used to derive a profitability index, a postponement index and combined technical-economical-probabilistic planning criteria. The method allows the ranking and the postponement of technically justified but economically unjustified investments which is especially useful when insufficient investment funds are available for construction.