Plausibility Check of the Project Design for the Hydropower Power Plant Khobi 2 (40 MW) and other sites, Georgia (Programme for the Promotion of Renewable Energies II)

Services provided by Skat: in-depth hydrological analysis based on available hydrological data & studies, own comprehensive data evaluation, including duration curves, residual flow, flood flow analysis, assessment of climate change impact and sediment transport.

Objective: plausibility check of available studies and evaluation of available data and risk assessment as a basis for the planning and design of the 40 MW hydropower system Kobi 2.

Activities: Assessment of the quality of the database and of the method to transfer data from the gauging station to the intake location (regression analyses), estimation of the error risk in forecasting the producible energy (trend analysis and statistical test), evaluation of the applied method to establish flow duration curves and own calculation of median flow duration curve and probable fluctuations (risk assessment); assessment of the estimation of sediment transport; assessment of method and value of environmental flow; assessment of the determination of the extreme runoff values (floods of different annuities); formulation of respective recommendations.

Results: reliable hydrological study with risk assessment and determination of residual flow as a sound basis for the planning and detailed design of the 40 MW hydropower system of Kobi 2 / Georgia