Power Piping Welding: A Canadian Case Study

摘要

Until recently, the demand for new power-plant construction in Canada has been relatively low. Power imports from the United States have been able to meet peak demands, leaving new construction plans on hold. However, due to the de-commissioning of coal-fired plants in Ontario, several new combined-cycle gas-turbine power plants are now under construction. One such plant is Sithe Global's Goreway station, located minutes north of the Toronto Airport. This is the first major power plant to be built in 25 years in Ontario. This paper reports on the challenges faced in welding the high-energy power piping for the heat-recovery steam generator (HRSG) and the training of local craft workers, and provides perspective for future projects.