After warning during the weekend that one might become necessary, Florida Gas Transmission issued an Overage Alert Day for Tuesday with a 25% tolerance for negative daily imbalances.
Reporting a shortfall in linepack, Westcoast implemented an OFO Tuesday to prevent drafting of its systems. See the bulletin board for tolerance details.
Southern California Gas waited until Saturday morning to announce a high-linepack OFO for that day. The OFO remained in place through Sunday before being canceled for Monday’s gas day.
Pacific Gas and Electric declared a high-inventory OFO on its California Gas Transmission system for New Year’s Day, then lifted it Monday.
Saying customer response was sufficient to decrease its linepack to acceptable levels, El Paso lifted Monday a Strained Operating Condition that had been declared Friday.
Due to anticipated colder weather and a unit outage at Station 261, Tennessee issued an OFO Action Alert for market-area Zones 5 and 6, effective Tuesday for all Balancing Parties in Zones 4, 5 and 6. Affected parties are required to maintain an actual daily flow rate not exceeding 2% of scheduled quantities or 500 Dth, whichever is greater, for underdeliveries into the system and overtakes from the system. Tennessee said it continues efforts to return Station 261 to normal operating conditions due to the outage of Unit 1C. See the bulletin board for details.
Millennium is preparing for a third pig Friday as part of a continuing effort to resolve high moisture levels that are restricting deliveries to Algonquin at the Ramapo point. This pig run will take place on a section of 24-inch diameter pipe located between the Huguenot and Westtown meters, Millennium said, and it is estimated to take roughly two hours to pig this 7.3-mile section of pipe. At this time Millennium anticipates no additional restrictions resulting from this pig run, but said current restriction at the Ramapo delivery point of 250,000 Dth/d will remain in effect until moisture levels there have receded to a consistent level that is deemed acceptable by Algonquin.
Effective Thursday until further notice, Nicor Gas will make another adjustment of caps for six pipelines delivering to its citygate. The OFO Cap Day is necessary due to continued forecasts of warm weather resulting in reduced system demand, Nicor said. The first OFO Cap Day was issued in mid-December and was adjusted as recently as Sunday (see Daily GPI, Jan. 3).
Citing limited flexibility to manage system imbalances, Transco said it was not allowing any due-pipeline shipper imbalance transactions. It also requested that no due-shipper imbalances be created.
CIG said the Black Wolf Meter Station in Colorado became available for service Friday. The delivery meter operated by Black Hills Utility Holding has capacity of 80,000 Dth/d.
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