Optimal site selection for sitting a solar park using a novel GIS- SWA’TEL model: A case study in Libya

ABSTRACT

The present paper proposes a spatial model for the purpose of helping Decision Makers (DM) to select a location for Solar Power Plants (SPPs) in the Misrata District, Western Libya. In this regard, the use of the Geographic Information System (GIS), SWARA (Step-wise Weight Assessment Ratio Analysis), and DEMATEL (Decision-Making Trial and Evaluation Laboratory) multi-criteria methods is suggested. The goal of this paper is to develop a new multi-criteria spatial model to identify the best locations for Solar Power Plants (SPP). Such model considers six constraints and eight assessment criteria that are gathered into financial, social, and specialized measures. The hybrid SWARA-DEMATEL (SWA’TEL) model is utilized to assess the weight coefficients of the suggested criteria. The final suitability map is presented utilizing raster cells (alternatives) that are given values ranging from 1 (the least suitable) to 5 (the most appropriate). As the outcomes indicate, an area of 1 667 km² in Misrata is entirely fit for the SPPs establishment. A sensitivity analysis performed by changing the criteria weights shows that the model is useful in selecting appropriate locations for developing SPPs projects. The model could also be used effectively to help locate appropriate sites for solar farms being installed in other areas with similar geographical conditions.

KEYWORDS:

• Geographic Information Systems (GIS)
• multi-criteria analysis
• locations
• solar power plants (SPP)