Abstract
Cost–benefit analysis was applied for 120 MW Samanalawewa hydroelectric reservoir plant in Sri Lanka. Valuation methods were applied to estimate losses in agriculture, natural vegetation, water losses and benefits of avoided carbon emissions. The project resulted in a negative net present value under the standard conditions stipulated and possible changes to the variables to make the project positive were investigated. The study highlights the importance of valuing environmental and social impacts where large-scale transformation of land uses in sensitive areas is involved. It outlines a framework for a composite tool that could accommodate environmental externalities, social inequities and uncertainties along expanded temporal and spatial scales.
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Udayakumara, E.P.N., Gunawardena, U.A.D.P. Cost–Benefit Analysis of Samanalawewa Hydroelectric Project in Sri Lanka: An Ex Post Analysis. Earth Syst Environ 2, 401–412 (2018). https://doi.org/10.1007/s41748-018-0060-z
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DOI: https://doi.org/10.1007/s41748-018-0060-z