Imbalances

Florida Gas Transmission extended an Overage Alert Day for market-area customers through at least Thursday and loosened the tolerance for negative daily imbalances to 25% after having tightened it to 15% Wednesday.

Florida Gas Transmission tightened the tolerance for negative daily imbalances from 25% to 15% in extending an Overage Alert Day for market-area customers through at least Wednesday.

To encourage shippers to run positive imbalances because of dwindling linepack during an especially severe cold snap in Western Canada, NOVA has reset its imbalance tolerance range to 0/+4.

Saying it continues to experience high due-shipper imbalances, East Tennessee Natural Gas (ETNG) issued a customer-specific Action Alert OFO that will take effect Thursday. Depending on operating conditions, ETNG said it may be required to expand the customer-specific OFO to a systemwide one. “This OFO does not affect the ability of ETNG to receive or deliver quantities of gas for scheduled nominations to any customer, storage field or pipeline,” ETNG said. “During the effectiveness of this OFO, the notified balancing parties must be balanced such that actual deliveries of gas out of the system must be greater than or equal to scheduled deliveries out of the system.”

Pacific Gas & Electric issued a systemwide Stage 2 high-inventory OFO for Wednesday. The OFO carried penalties of $1/Dth for exceeding a 5% tolerance on positive daily imbalances.

Pacific Gas & Electric extended a systemwide Stage 2 high-inventory OFO through at least Saturday but loosened the tolerance on positive daily imbalances from 11% to 20%. Southern California Gas also kept a high-linepack OFO in place through at least Saturday without changing its conditions.

Florida Gas Transmission extended an Overage Alert Day for customers in its market area into its third day Wednesday but loosened the tolerance for negative daily imbalances from 10% to 15%.

Florida Gas Transmission extended an Overage Alert Day for customers in its market area through at least Tuesday and tightened the tolerance for negative daily imbalances from 20% to 10%.

Florida Gas Transmission tightened the tolerance for negative daily imbalances from 20% to 15% in extending an Overage Alert Day for market-area customers into its sixth day Thursday.