A framework for sustainable utility scale renewable energy selection in South Africa

• Published in: Journal of cleaner production Vol. 224; pp. 637 - 650
• Main Authors: Naicker, Prisha, Thopil, George Alex
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.07.2019
• Subjects: Decision-making matrix; Framework; Multi-criteria analysis; Renewable energy; South Africa; South Africa; Renewable energy; Multi-criteria analysis; Decision-making matrix; Framework
• ISSN: 0959-6526; 1879-1786
• DOI: 10.1016/j.jclepro.2019.03.257

A range of varying criteria with trade-offs need consideration when selecting a suitable renewable energy technology (RET) for a specific area or location. In this study RETs in South Africa, in accordance with the national renewable energy program, were assessed to compare and highlight feasible technology options. A key objective of the study was to develop a framework that could be used to assess the various RETs at utility scale. Important criteria contributing toward the assessment of RETs were identified from literature. The criteria were used within the framework for analysis which consisted of the following factors: technical, economic, environmental, social and political. The goal of assessing RETs in South Africa was located at the top of the framework hierarchy. A total of 15 criteria were identified to use as part of the assessment. A decision-making matrix based on both qualitative and quantitative data was used to score the criteria. The RETs (solar PV, wind, CSP, hydro, biogas and biomass) in South Africa were evaluated with respect to each criterion. The study aims to contribute towards - from a developing country perspective - highlighting key barriers to technology adoption, assist in investment decisions, and ultimately contribute toward a sustainable energy infrastructure. From the analysis performed, solar PV and wind were favoured due to technology maturity and financier perception while CSP also scored favourably due to the potential to meet the baseload energy requirements. The key policy barriers identified that require attention include improved knowledge transfer and better maintenance skills across all technologies while site suitability was identified as a major barrier for hydro and biomass RETs. •Comparison of renewable energy technologies based on 15 criteria categorised into 5 factors across 6 technologies.•Comparison made using multi-criteria analysis for both quantitative and qualitative data.•Solar PV and wind plants favoured due to higher technology maturity, positive financier perception and lower risk.•CSP also favoured based on ability to reduce intermittency.•Barriers include knowledge transfer, shortage of maintenance skills and site accessibility specifically for hydro and biomass.