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

Southern California Gas also declared an OFO, saying that effective Friday customers must ensure that all deliveries into its system are within 110% of nominated usage. Buy-back charges according to the utility’s tariffs would be charged to customers who delivered more than 110% of their actual gas usage.

After lifting a systemwide Imbalance Warning last Monday (see Daily GPI, March 16), Tennessee reinstated one for Friday, asking customers to match physical flow with scheduled quantities to prevent imbalances that would threaten its operational integrity. “Due to continued mild weather and storage field testing activity, Tennessee does not have the ability to absorb imbalances caused by overdeliveries by receipt point operators into the system and undertakes from the system by delivery point operators,” Tennessee said.

CenterPoint said an expected capacity reduction to 1.56 Bcf/d on its Line CP due to quarterly maintenance, previously expected to begin April 13, has now been rescheduled to start Monday. The work is expected to last three days. Based on recent nominated and scheduled quantities and operational conditions, CenterPoint said it anticipates that primary firm services will not be interrupted during this time, but there may be pro rata reductions in scheduled quantities.

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