FEASIBILITY STUDY ON THE COAL MINING COMPONENT OF THE PROPOSED FON YAGHNOB COAL-FIRED POWER PLANT IN TAJIKISTAN
The Fon Yaghnob coal deposit is located within the Zeravshan-Gissar Mountain Range, as a narrow strip (in north-west direction) up to 24 km long, with the total area of deposit ~102 km2 , along the Fan Darya River and its tributaries: the Yaghnob, Iskander Darya and Pasrud Darya Rivers and feeder creeks: Jizhikrut, Gaberud, etc. Pictured is the area of limited coal mining along the Jizhikrut Creek at the point of its feeder - Obishir Creek.
This FS concerning the Fon Yaghnob coal deposit concluded that:
1. The production of coal must be started with surface mining at the Coal Quarry Site of the Eastern Area (First Phase of Development) - the most explored area of Fon Yaghnob coal deposit, with the ensuing detailed exploration of all Eastern Flank (Second Phase of Development), including Jizhikrut and Ravat Sites, as a precondition for construction of underground mines. The Third Phase of Development is detailed exploration and underground mining of the Western Flank with initial extraction of coal-bed methane from coal seams.
2. The most feasible site for the first 500 MW unit of 1500 MW Power Plant is at the Coal Quarry Site of the Eastern Area (eastern surface mining area).
3. Regarding the size of units the option of constructing at least two 250 MW units instead of one initial 500 MW unit should be considered; this will dramatically reduce the cost of initial investment and will allow for a slower development of tonnage from surface mine. This decision is based on the following information and data, confirmed by review of all previous and current studies:
The Site has sufficient geological data for construction of surface mining facilities.
Only The Coal Quarry Site of the Fon Yaghnob Eastern Area has enough suitable coal for a 30-year supply of surface minable coal to operate the first 500 MW unit;
The Coal Quarry Site has an excellent infrastructure running through the Site: 500KV power line North-South, upgraded highway Dushanbe-Khujand, non-freezing Jizhikrut Creek with high quality water with flow range in 0.3-8 m3/sec; land is available at the site for construction of a 500 MW unit or two 250 MW units and all facilities associated with these units; it is only ~100 km from the Site to Dushanbe, where the 100 MW Thermal Heat and Power Plant is now under reconstruction to transform it from natural gas-/ heavy oil-fueled to a coal-fueled facility.
4. After thorough investigation and evaluation of available geological and topographical maps, sampling, etc., from the previously conducted geological exploration of the Eastern, Central and Western Areas of the Fon Yaghnob deposit it was decided that the construction of a second 500MW and third 500MW unit of the 1500 MW coal-fueled power plant will be based exclusively on underground coal mining in these Areas.
5. The absence of the precise 3-D position of coal seams and other geological factors that define the conditions under which an underground mine can be designed and built precludes bankable assessment.