Imbalances

Southern California Gas declared a new high-linepack OFO for Wednesday, setting a 10% tolerance for positive daily imbalances.

Westcoast implemented a systemwide high-linepack OFO Thursday with 10% tolerance for positive daily imbalances.

Citing limited operational flexibility to manage imbalances over the long holiday weekend, Tennessee issued a systemwide Balancing Alert for Saturday that required all delivery point operators to keep actual daily takes from the system equal to or greater than scheduled quantities, and all receipt point operators to keep actual daily receipts into the system equal to or less than scheduled quantities. The requirement applied in each case regardless of the operator’s cumulative imbalance position.

Southern California Gas declared a high-linepack OFO for Wednesday, setting a 10% tolerance for positive daily imbalances.

Pacific Gas and Electric issued a systemwide Stage 2 low-inventory OFO on its California Gas Transmission system, setting penalties of $1/Dth for exceeding a 5% tolerance on negative daily imbalances.

Florida Gas Transmission raised the tolerance for negative daily imbalances from 20% to 25% in extending an Overage Alert Day for market-area customers through at least Thursday.

Noting that it has limited operational flexibility to manage imbalances due to testing of its Bear Creek storage fields, Tennessee said it would implement Saturday a systemwide Imbalance Warning that requires all delivery point operators to keep actual daily takes out of the system equal to or greater than scheduled quantities and all receipt point operators to keep actual daily receipts into the system equal to or less than scheduled quantities. Both conditions apply regardless of an operator’s cumulative imbalance position. The pipeline also declared a force majeure Thursday night in connection with a leak on its line 3 section downstream of Station 110 near Moorehead, KY. Tennessee said it immediately activated its emergency response plan and dispatched personnel to the scene to close valves and isolate the segment between Main Line Valves 111-3 and 111-3A. Based on current nominations, Tennessee did not anticipate any outage-related service restrictions for the gas days of Thursday and Friday.

Pacific Gas and Electric did not extend a systemwide Stage 2 low-inventory OFO beyond Thursday.

Citing limited operational flexibility to manage imbalances in market-area Zones 5 and 6 along with increased demand there, Tennessee issued an Imbalance Warning for the two zones Wednesday. Regardless of their cumulative imbalance positions, under the warning all delivery point operators are required to keep actual daily takes out of the system equal to or less than scheduled quantities, and all receipt point operators must keep actual daily receipts into the system equal to or greater than scheduled quantities, Tennessee said.