This paper presents a general methodological framework for the formula
tion of an action plan for the large-scale integration of renewable en
ergy sources (RES), The action plan is the output of a four-stage proc
edure: (a) identification and ranking of RES technologies according to
various criteria, (b) formation of candidate sets of RES technologies
that satisfy the goal of minimum interventions to the energy system a
nd the balanced regional development through site selection rules of R
ES projects, (c) technical and economical analysis, and (d) social acc
eptance of the proposed action plan, The method is applied to the auto
nomous energy system of Crete and three alternative action plans are p
roposed. (C) 1998 Elsevier Science Ltd. All rights reserved.