Abstract
Previous estimates of geothermal energy potential in Canada give an indication of available heat to be ‘farmed’ at depth with focus on Western Canadian Cordillera and Western Canadian Sedimentary basin as prime targets. This paper examines in more detail temperature–depth realtionships near large population centres in Québec, in order to provide a first order assesment of enhanced geothermal systems (EGS) potential for electrical and heat generation. Results show areas with significant EGS potential in the St-Lawrence River valley related to high heat flow density and thermal blanketing of thick sedimentary cover. At >120°C found to be a prospect for several areas in Québec (drilled to depths of over 4.5km in Trois-Rivières area, near 4.5km in the Eastern St-Lawrence River (Rimouski, Gaspé and Golf, including Anticosti Island) and just 4km in Quebec area) the potentially available geothermal power from EGS hydrothermal systems in deep sediments can be of significance.
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