CRITICAL, OPERATIONAL ALERT, 20260406, PNGTS, 159747872

TSP
159747872

TSP Name
Portland Natural Gas Transmission

Notice Identifier
5543

Critical Notice Description (Critical Desc)
OPER ALERT

Notice Effective Date/Time
04/06/2026 10:30 am

Notice End Date/Time
04/30/2026 9:00 am

Prior Notice


Notice Stat Desc
Critical notice

Notice Type
Critical notice

Required Response Indicator Description
NO RESPONSE REQUIRED

Posting Date/Time
04/06/2026 10:24 am

Subject
CRITICAL, OPERATIONAL ALERT, 20260406, PNGTS, 159747872

Notice Text

Subject: Courtesy Posting: MNUS Imbalance Notice -- Update

As a courtesy, Portland Natural Gas Transmission System (PNGTS) hereby notifies shippers and operators of the following notice posted by Maritimes & Northeast (M&N):   

Maritimes & Northeast (M&N) has limited operational flexibility to manage imbalances.  Effective 9:00 AM CCT, April 6, 2026, M&N requires all shippers and point operators to carefully review demand for gas and schedule gas consistent with daily needs and to tender and receive gas consistent with confirmed nominations regardless of their cumulative imbalance position.

Correspondingly, effective 9:00 AM CCT, April 6, 2026, the previously posted imbalance notice is no longer in effect. 

Shippers are required to coordinate any imbalance payback through M&N's account representative and actual payback quantities may be limited depending on system operations and conditions.

Additionally, M&N continues to require all Power Plant Operators to provide information mandated by FERC Order No. 698 until further notice. Information required includes the hourly consumption profile of directly connected power generation facilities.

If necessary, M&N will utilize any provision of its tariff to ensure system integrity including the issuance of customer specific or system wide OFOs. 

This notice will remain in effect until further notice.

Please contact your Operations Account Representative if you have any questions.