This paper proposes a framework for selecting energy storage technology (EST) for small-scale renewable energy systems. The present study was able to achieve this using the results that were generated from a Preference Ranking Organisation Method for Enrichment Evaluation (PROMETHEE) and a fuzzy quality function deployment (FQFD) model. | Techno-economic assessment of small-scale renewable energy storage technologies Decision Science Letters 8 2019 363 372 Contents lists available at GrowingScience Decision Science Letters homepage dsl Techno-economic assessment of small-scale renewable energy storage technologies Desmond Eseoghene Ighravwea aBells University of Technology Nigeria CHRONICLE ABSTRACT Article history This paper proposes a framework for selecting energy storage technology EST for small-scale Received February 19 2018 renewable energy systems. The present study was able to achieve this using the results that were Received in revised format generated from a Preference Ranking Organisation Method for Enrichment Evaluation August 10 2018 PROMETHEE and a fuzzy quality function deployment FQFD model. Using the FQFD Accepted August 30 2018 Available online model experts opinions were incorporated into the framework during the evaluation of the August 30 2018 techno-economic requirements importance for the selection process. The FQFD model Keywords considered system safety availability flexibility reliability and effectiveness as customers Techno-economic requirements requirements while nominal voltage nominal discharge current peak measured voltage Energy storage technology operating cost and cost of energy were among the techno-economic requirements. During the PROMETHEE method framework application a questionnaire was used to collect information from experts on the Fuzzy quality function deployment techno-economic requirements importance while information on the techno-economic eleven Small-scale renewable energy requirements for four ESTs were obtained from literature. The FQFD model results were incorporated into a PROMETHEE and TOPSIS models. The PROMETHEE and the TOPSIS models identified Lithium-Ion EST as the best EST for small-scale renewable energy systems. 2018 by the authors licensee Growing Science Canada. 1. Introduction Energy storage technology EST has