Canada’s National Energy Board approved several rate changes on Duke Energy Gas Transmission, Westcoast Energy pipeline system in British Columbia. The changes include firm transportation service enhancements in Zone 3 (Mainline Transportation North) and Zone 4 (Mainline Transportation South) that will include term-differentiated firm service tolls, authorized overrun service and daily cross-corridor crediting in Zone 3.

In the past few years, increasing amounts of firm service have not been recontracted in Zones 3 and 4 and Westcoast filed the tariff changes to increase the value of firm service to existing and potential shippers and encourage firm contracting.

Duke Energy Gas Transmission deferred an expansion project on the southern Westcoast mainline in British Columbia in mid 2003 because unexpected capacity became available when there was inadequate recontracting. The majority of the proposed 200 MMcf/d expansion became available through turned back capacity, the company said (see Daily GPI, April 16, 2003).

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