Oyu Tolgoi Mining and Processing EIA

Oyu Tolgoi ProjectMining and Processing EIAFigure 1.19 OT Power demandInitial investigations to assess various options for the supply of power to Oyu Tolgoi began as early as mid-2002. Three primary options were identified:• obtaining power from the Mongolian Central Electricity System (CES) located approximately 560 km to thenorth of Oyu Tolgoi• obtaining power from the Inner Mongolian (China) grid approximately 100 km to the south at its closest point• generating power at or near Oyu Tolgoi fuelled by local coal resources.Studies of these options by recognized independent consultants and engineering firms Teshmont andFluor (power plant pre-feasibility study) have reached the following conclusions:• Considering the current load resource balance, the condition of existing generation equipment, and thesignificant load of the region, CES will require additional generation capacity in the future.• The cost of construction for a dual-circuit 220 kV transmission line from the CES to the project site is in therange of $150 million to $200 million. There is no apparent, readily available funding available to the CESPrepared by ECO-TRADE LLC.,Environmental Consultants, MongoliaClient: Ivanhoe Mines Mongolia Inc(IMMI) XXKPart I- 48