This original method was applied to long-term
planning of electrical power systems and produced a feasible transmission network
with near-minimum circuit miles using as input any existing network plus a load
forecast and generation schedule. Two main steps of the method, in which the
planning problem was formulated as load flow estimation and new circuit selection
could be searched based on the system overloads, were presented in [10]. The linear
programming was used to solve the minimisation problem for the needed power
movements, whereas the result was called “linear flow estimate”. A circuit addition
was selected based on the location of the largest overload in this flow estimate. These
two steps were repeated until no overloads remain in the system.