water Article Hydropower Potential of Run of River Schemes in the Himalayas under Climate Change: A Case Study in the Dudh Koshi Basin of Nepal Daniele Bocchiola 1,2,* , Mattia Manara 1 and Riccardo Mereu 3 1 Department of Civil and Environmental Engineering (DICA), Politecnico di Milano, L. da Vinci 32, 20133 Milano, Italy;
[email protected] 2 EVK2CNR Committee of Italy, S. Bernardino 145, 24122 Bergamo, Italy 3 Department of Energy Engineering (DENG), Politecnico di Milano, Campus-Bovisa, Lambruschini, 4a, 20156 Milano, Italy;
[email protected] * Correspondence:
[email protected] Received: 20 July 2020; Accepted: 16 September 2020; Published: 19 September 2020 Abstract: In spite of the very large hydropower potential given from the melting snow and ice of Himalayas, Nepal’s population has little hydropower production. The high use of fossil fuels and biomasses results in measurable air pollution, even in the mountain areas. Hydropower planning and implementation, in the face of the changing climate, is therefore paramount important. We focus here on Nepal, and particularly on the Dudh Koshi river basin, with a population of ca. 170,000 people, within an area with large potential for hydropower production. Our main objectives are to (i) preliminarily design a local hydropower grid based on a distributed run of river ROR scheme, and (ii) verify the resilience of the grid against modified hydrology under perspective climate change, until the end of the century. To do so, we set up and tune the Poli-Hydro semi-distributed glacio-hydrological model, mimicking the complex hydrology of the area. We then modify a state of the art algorithm to develop and exploit a heuristic, resource-demand based model, called Poli-ROR.