Referring to colder market-area temperatures and its need to maintain linepack, Tennessee is issuing an OFO Action Alert, effective Thursday, for all LMS-PA (including SA contracts acting as balancing parties), LMS-MA and LMS-PL Balancing Parties with meters located in Zones 1, L and 2. Affected parties are required to limit daily negative imbalances to 2% of scheduled quantities or 500 Dth, whichever is greater. Penalties will be 21.98 cents/Dth “for that portion of physical quantities related to underdeliveries by receipt point operators and overtakes by delivery point operators [that] exceed this tolerance,” the pipeline said.

Due to cold weather moving into Florida that night, Florida Gas Transmission issued an Overage Alert Day for market-area customers Tuesday, setting the tolerance for negative daily imbalances at 25%.

Citing unscheduled maintenance at the Buckley, Malvern and Ada compressor stations and a colder-than-normal forecast, CenterPoint said an Operational Alert will take effect Wednesday. See the bulletin board for alert conditions.

Citing “extreme weather” forecasts for its service area, TGT said starting Wednesday it will not permit Hourly Overrun Transportation, Delivery Point Loan or Imbalance Payback from Transportation Service Provider services north of its Jeffersontown Compressor Station until further notice.

Due to continued high linepack on upstream pipelines and banking on its system, Southwest Gas upgraded Monday’s “hold to burn notice” to a Stage 3 OFO, effective Tuesday until further notice. Southwest said transportation customers must ensure that their gas usage “matches or exceeds scheduled supplies for each day” of the OFO. The daily operating window (imbalance tolerance) has been reduced to zero, the LDC said. Upstream pipeline Kern River reported that high linepack resulting from excessive banking over the weekend had increased from two of four segments Monday to systemwide Tuesday.

Transwestern said a unit that experienced mechanical failure Monday at La Plata Compressor Station (see Daily GPI, Jan. 13) was available again Tuesday and it had restored station capacity to the normal 500,000 MMBtu/d.

Southern California Gas said it lost 50 MMcf/d of storage injection capacity Monday at its Honor Rancho facility due to replacement of several parts on compressor Unit #5. The work is expected to continue through Wednesday.

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