Background: In recent years, there has been an increasing interest in using micro-renewable energy sources. However, planning has not yet developed methodological approaches (1) for spatially optimizing residential development according to the different renewable energy potentials and (2) for integrating objectives of optimized energy efficiency with other environmental requirements and concerns. This study addresses these topics by firstly presenting a new concept for the regional planning. Methods: The methodological approach for the evaluation of spatial variations in the available energy potential was based on the combination of existing methods adapted to the local scale and data availability. For assessing the bioenergy potential, a new method was developed. Other environmental criteria for deciding about sustainable locations were identified through a survey of more than 100 expert respondents. This survey involved pairwise comparisons of relevant factors, which were then translated into relative weights using the Analytical Hierarchy Process. Subsequently, these weights were applied to factor maps in a Geographical Information System using a weighted linear combination method.

A political and technical debate about the effectiveness of strategic spatial planning results is ongoing. The debate has taken this direction, rather than focusing on the methods, procedures and organization of spatial planning, because it is difficult to contextualize the development of programmed steps within the time required for their implementation. This article explores the potentialities and challenges of this debate, focusing on its evolutionary excursus in Italy and the region of Sardinia. The aim of this article is to propose a qualitative assessment methodology, capable of comparing different spatial strategic plans, in order to understand the extent to which the plans’ stated objectives were achieved, and to assess what changes the implementation of these objectives achieved in the external environment over the medium and long term

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