Cost-Benefit Analysis for Regional Infrastructure in Water and Power Sectors in Southern Africa provides a framework for evaluating large, cross-border infrastructure projects that support regional integration. The study recognises that shared water and power systems—such as hydropower schemes, transmission interconnectors, and multipurpose water projects—generate benefits that extend beyond national boundaries. It outlines methods for assessing capital and operating costs alongside regional economic gains, including improved energy security, reduced generation costs through resource pooling, enhanced drought resilience, and more efficient water allocation. The report emphasises incorporating environmental and social impacts, particularly where projects affect river basins or communities across borders. It also highlights the importance of coordinated planning under regional institutions and conducting sensitivity analyses to account for hydrological, price, and demand uncertainties. Overall, the framework helps identify investments that maximise collective regional welfare.
