The results of the Eagle Plain Case Study compares the relative cost of using natural gas with the cost of diesel generated electricity to meet the energy requirements of several proposed mining projects. [...] The price of diesel fuel and the unpredictability of future pricing are major disincentives to the development of mines in the Yukon. [...] The results of the Eagle Plain case study compares the cost of using natural gas with the cost of diesel generated electricity to meet the energy requirements of several proposed mining projects. [...] The E2M results and the YG priority to develop cleaner Yukon energy sources led to this discussion paper which summarizes the following: • Yukon’s projected demand for electricity and possible supply options; • The natural gas supply option - the E2M paper assessed the economics of developing Eagle Plain. [...] To meet the anticipated growth in energy requirements and peak demand on its grid, YEC: • has completed the first phase of the transmission line extension to connect the WAF and MD grids and is completing the second phase of the Carmacks to Stewart Crossing interconnection to connect the WAF and MD systems by 2011; • is adding a third turbine (7MW and 5GWh per year) at Aishihik which will be in-se