Northwest reminded shippers that during the Jan. 4-6 period its market area experienced extreme cold that caused heavy drafting on the system, and the pipeline's Jackson Prairie storage account dropped from 1.8 Bcf to 1.4 Bcf in those three days "even with the assistance of a few customers realigning their supplies." Several weather sources have indicated that similar weather would again reach the market area beginning Sunday (Jan. 25), Northwest said. In addition, it will be conducting maintenance on the Columbia Gorge section of the pipe during the first week in February. To ensure system integrity and maintain adequate storage levels for the upcoming maintenance, Northwest declared a Stage III entitlement (with 13% tolerance for overruns for receiving parties north of the Kemmerer Compressor Station) effective Monday until further notice.
After giving shippers a chance to make voluntary changes (see Daily GPI, Jan. 23), Tennessee said Friday it anticipated adjusting each Zone 1 100 Leg Supply Aggregation Contract to a tolerance of 100 dekatherms effective with that gas day's Cycle 1 scheduling.
Noting that temperatures were expected to moderate in portions of its market area, Transco said Friday it would discontinue a prohibition on due-shipper imbalance make-up transactions effective with Saturday's gas day. It also planned to return the schedule tolerance at pools to 4%.
Algonquin said Friday a unit outage at its Burrillville (RI) Compressor Station was expected was expected to keep the unit unavailable through the weekend. This outage, coupled with forecasts of very cold weather throughout its service territory, "will leave [Algonquin] with limited operating flexibility for the next several days," a bulletin board posting said. Effective Friday until further notice, a 2% tolerance on negative daily imbalances was imposed Penalties for exceeding the tolerance were $15/Dth.
Based on new weather forecasts for the state of Wisconsin, ANR canceled Friday all restrictions previously posted for deliveries in the state except for the Madison Lateral area, including all delivery points from Sharon north to the Weyauwega Compressor Station. "The Madison Lateral area has been and continues to be nominated at full capacity," ANR said. A ban on Unauthorized Overrun also remained in place for the affected area.
Trunkline reported completion Friday of cleaning and in-line inspection of its LNG Lateral in southwest Louisiana. The work had begun Jan. 6.
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