This is considered as a strategic input by all countries that face the future with responsibility.
Large projects have a typical horizon of more than one decade.
A failure in offer projections may cause serious problems for the development of the country. In the past, this evidence was used with a certain exaggeration by planners subject to corporative pressures and low modesty whose predictions of elevated demand were systematically denied by reality. Certainly, most of their mistakes were due to optimistic economical scenarios, external to energy planning, that did not come true. These scenarios reflected in most cases political wishful thinking of economical growth. During some time, various economical scenarios with different growth rates were used but they were of little practical use since the resulting demand diversity did not clearly orient the investments.