| Thermal power plants in Ghana generate significant amounts of CO2 and other greenhouse gases from the combustion of fossil fuel,which are threats to environmental protection and the achievement of sustainable development.For this reason,this study applies an output-oriented radial DEA environmental assessment model for the evaluation of thermal power plants in Ghana.This model has two major features:(1)It separates the output into desirable and undesirable output.(2)The model incorporates the natural and managerial disposability to measure unified efficiency.The above model is used for measuring the unified efficiency of 8 thermal power plants in Ghana from 2016 to 201 8.The key findings of this study are as follows.Firstly,private-owned thermal power plants outperformed those of State-owned thermal power plants in terms of unified efficiency under natural and managerial disposability.Secondly,the environmental efficiency has not received sufficient attention from the government and all stakeholders in the power generating sector since minimizing the demand and supply gap for electricity is the ultimate target for the government. |
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