Alberta approves 700-MW cogen project of Shell Canada

Alberta oil sands

The Alberta Utilities Commission on March 21 approved three related applications by Shell Canada Ltd., with one of them involving the construction of a 690-MW, gas-fired cogeneration plant.

The approved applications were for: an industrial system designation (ISD); the cogeneration power plant itself; and three related substations. The ISD, the cogeneration power plant and the substations would all be located in Northern Sunrise County, approximately 40 kilometers northeast from the town of Peace River.

Shell’s Carmon Creek project is an 80,000 barrels per day in-situ oilsands project. The Carmon Creek project would utilize a thermal technology – vertical steam drive thermal recovery process along with cyclic steam stimulation. The project would include the development of the central processing facilities (CPF), the initial seven well pads for drilling, the thermal injection wells, the production wells and the disposal wells. Shell proposed to install the cogeneration facilities at the Shell Carmon Creek project site to supply the steam and electrical energy needs for the project.

The electric system components designated as an industrial system would be composed of a cogeneration power plant consisting of three 230-MW gas turbine generators, the 240-kV Brock 232S substation, the 34.5-kV CPF substation, a 25/34.5-kV temporary drilling substation and the associated 34.5-kV distribution system.

Shell submitted that the proposed cogen plant would consist of three 230-MW natural gas turbine generators each equipped with a heat-recovery steam generator, with a total generating capability of 690 MW. In addition, the power plant would include two standby diesel-fueled generators, each with a preliminary generating capability of 5 MW.

Shell indicated that the power plant would be commissioned in three stages; the first cogeneration unit would be in-service by January 2016, the second cogeneration unit to be in-service by March 2016, and the third cogeneration unit to be in-service by May 2016.

During normal operation, excess electricity above the needs of the oilsands project would be generated and sold to the Alberta Interconnected Electric System. If the cogeneration is not available, Shell would utilize on-site standby generators and/or purchase electricity for the Carmon Creek project phases 1 and 2 from the Alberta Interconnected Electric System. The 240-kV Brock 232S substation would provide a connection to the Alberta Interconnected Electric System via two 240-kV transmission lines to be constructed and owned by ATCO Electric Ltd.

This article was republished with permission from GenerationHub.

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