Expansion of renewable energy generation in Sri Lanka: What is the role of small hydropower?

Sri Lanka began promoting non-conventional renewable energy development in the mid-1990s. Although its initial success was with small hydro (SHP) schemes, subsequent changes introduced to the procurement tariff triggered wind and solar power development. Nevertheless, in a typical year, most of the country’s electricity is generated from thermal power. However, Sri Lanka now aspires to generate 70 per cent of its electricity needs from renewables by 2030. This research examines the future role of small hydropower in the energy mix. Based on literature, two rounds of interviews with key experts, and descriptive research to assess the suitability of small hydro in lower valleys where potential may now exist, this study finds that there is considerable development potential, and SHP can provide vital stable energy to the grid. The research shows remaining small hydro potential to be 200 to 400 MW.