Mark Henry, energy co-ordinator for the City of Yellowknife, pointed out several inaccuracies in last week’s report on using geothermal energy from the Con mine to heat the city.
WATER TEMPERATURE: “Determining the temperature of the usable waters in the mine is a key question that will be answered in the feasibility study. I have heard wide ranges of temperatures that could be expected of the usable water, including 10 degrees C, which is the surface temperature of the sample tests Newmont (Miramar) has been taking, which is expected to be lower than the usable water temperature,” he wrote.
DEMONSTRATION PLANT: “There is not and has never been any attempt at doing this [estimating a payback timeline]. Dr. Gomshei conducted a preliminary study of the mine to bring credibility to the concept of using heat in the mine for use within the community. Included in his report was a high level desk top analysis of the concept of a demonstration project. We have just compiled the team of experts to start work on an extensive feasibility study on the concept. Gomshei will be an important member of the team but is not heading it,” Henry continued.
CHEAP COST: “Only after a thorough economic analysis will we be able to determine this and I think most individuals with an understanding of construction costs these days would hesitate to call any future development of this resource cheap. This statement is a huge leap. It is perpetuating a non fact and generating false expectations within the community,” he concluded.
CMJ regrets the errors and has corrected them in the original article.