Private sector enterprises in Dushanbe, as well as in other cities of Tajikistan, do not have access to the centralized heat supply system. Heating and hot water supply in residential areas are provided mainly through the burning of liquid, fluid and solid fuels in various types of stoves. Together with the other water reservoirs, this HPP's water reservoir, with a capacity of 13.3 km3, would be able to ensure multi-year regulation of the runoff into the Amu Darya basin to increase the sustainability of water supply for about five million ha of land in the riparian countries in low-water and drought periods. The main purpose of these studies was to evaluate the viability of the Rogun HPP, to provide an independent and objective assessment of the proposed project based on technological, economic, social and environmental factors, and to suggest potential alternatives to the Rogun HPP. All interim and final reports of the Rogun assessment studies were made public on 1 September 2014, which marked the end of the assessment process. Five rounds of meetings in the region were conducted with the participation of the officials from riparian countries, the diplomatic and development community and hundreds of civil society organizations over the four-year period.