This study aimed to bridge such gaps by establishing the role of green supply chain management practices on supply chain performance at Kenya Electricity Generating Company Limited. A case study research design was adopted. The study populations for this study were 166 employee of Kenya Electricity Generating Company Limited at their head office in Nairobi.  The study sampled 50 respondents through stratified random sampling. The research used questionnaires. The research administered a questionnaire to each member of the target population. The research carried out  a pilot study to pretest and validates the questionnaire Quantitative data collected was analyzed using SPSS (Version 20) and presented through percentages, means, standard deviations and frequencies. The information was displayed by use of bar charts, graphs and pie charts and in prose-form. Content analysis was used to test data that is qualitative nature or aspect of the data collected from the open ended questions. Reverse logistics influences the supply chain performance through controlling of environmental risks, proper utilization of materials by customers, results to customer satisfaction and ensures recycling of materials. Green procurement affects the supply chain performance by ensuring production with low environmental impacts, products which are using environmental friendly processes, environmental collaboration with the suppliers, eco-labelled products and adoption of environmental criteria into the supplier assessment systems. Green packaging influences supply chain performance through reducing environmental impact by products within the supply chain, proper use of products by consumers, appropriate product design to minimize consumption of materials and energy, facilitates reuse, recycle and recovery of component materials. Waste management systems affects supply chain performance through recycling and re-using waste created, treating and controlling post combustion emissions, use of alternative fuels and encourages implementation of waste to energy process. The study recommends that the management of Kenya electricity generating company should encourage proper utilization of materials and recycling of materials. The study recommends that the management of KenGen should integrate green procurement process in all its purchasing processes since it’s characterized by a low environmental impact that is products environmentally friendly in nature and produced using environmentally friendly processes. The study recommends that the management of KenGen should purchase products from manufacturers whose design products minimize consumption of materials and energy, that facilitate the reuse, recycle and recovery of component materials. The study recommends that the management of Kengen should invest more in waste management systems.

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