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006951446
Algonquin Gas Transmission, LLC
Critical notice
10/14/2021
09:00:00 AM
10/15/2021
09:00:00 AM
113278
Initiate
Capacity Constraint
10/13/2021
03:22:05 PM


No response required


AGT Pipeline Conditions for 10/14/2021


Notice Text:

For Gas Day October 14, 2021, Algonquin Gas Transmission (AGT) has approved and scheduled nominations at each pipeline segment and meter station up to AGT's operational capacity. The following locations have been restricted due to requested nominations exceeding AGT's operational capacity:

AGT has restricted 100% of interruptible and approximately 96% secondary out of path nominations that exceed entitlements sourced from points west of its Stony Point Compressor Station (Stony Point) for delivery east of Stony Point. No increases in nominations sourced west of Stony Point for delivery east of Stony Point, except for Primary Firm No-Notice nominations, will be accepted.

AGT has restricted 100% of interruptible and approximately 62% secondary out of path nominations that exceed entitlements sourced from points west of its Cromwell Compressor Station (Cromwell) for delivery east of Cromwell. No increases in nominations sourced west of Cromwell for delivery east of Cromwell, except for Primary Firm No-Notice nominations, will be accepted.

AGT has restricted 100% of interruptible and approximately 78% secondary out of path nominations that exceed entitlements sourced from points west of its Burrillville Compressor Station (Burrillville) for delivery to points east of Burrillville. No increases in nominations sourced from points west of Burrillville for delivery to points east of Burrillville, except for Primary Firm No-Notice nominations, will be accepted.

AGT has restricted 100% of interruptible and approximately 98% secondary out of path nominations that exceed entitlements sourced upstream of the Weymouth Compressor Station (Weymouth) for delivery downstream of Weymouth. No increases in nominations sourced from points upstream Weymouth for delivery downstream of Weymouth will be accepted.

AGT has restricted 100% of interruptible and approximately 84% secondary out of path nominations that exceed entitlements sourced upstream of the G system for delivery on the G system. No increases in nominations sourced upstream of the G system for delivery on the G system, except for Primary Firm No-Notice nominations, will be accepted.

AGT has restricted 100% interruptible and approximately 8% out of path nominations exceeding receipt entitlements at the Tennessee Gas Pipeline interconnect at Mendon (Meter station 00205). No increases in receipts at Mendon will be accepted.

J System Section 1 VS 4 - EOL Detailed Investigations: October 13 - 17
Isolation will begin in October for further evaluations. All meters downstream of VS 4 will need to source supply from MR00271 - EVERETT INT. (MIDDLESEX,MA) while VS 4 is isolated.

The following delivery meters are located downstream of VS 4:

MR 00027 - NATIONAL GRID- EVERETT (MIDDLESEX,MA)
MR 00028 - BROOKFORD ST (MIDDLESEX,MA)
MR 00089 - NATIONAL GRID-MEDFORD (MIDDLESEX,MA)
MR 00826 - MYSTIC (MIDDLESEX,MA)

In addition, receipt nominations from meters (including physical and head of lateral locations) downstream of Valve Section 4 on the J-System for delivery to meters outside of the J-System or meters in valve sections 1, 2, 3 or 4 on the J-System will not be allowed.

The system wide OFO effective October 9, 2021 will remain in effect until further notice.

Additionally, due to scheduled outages, customers/point operators on the J system VS4 to EOL will need to remain balanced for the duration of the outage.

AGT requests that customers/point operators on AGT be aware of the impact non-ratable hourly takes from the system may have in causing delivery pressures reaching lower than desired levels.

As a reminder, AGT's system is not designed to sustain delivery pressures above contract levels while making non-ratable/accelerated deliveries above scheduled quantities for more than 6 consecutive hours, to be followed by flows below scheduled quantity for the balance of any 24-hour period. If customers/point operators don't manage hourly takes from the system, 1) delivery pressures will be impacted and /or 2) AGT may be required to impose further restrictions or courses of action in order to maintain the operational integrity of the system.

AGT may be required to issue system specific and/or hourly OFO's pursuant to General Terms and Conditions Section 26.7(d) to impose further restrictions in order to maintain the operational integrity of the system.

Additionally, AGT requires all Power Plant Operators to provide information mandated by FERC Order No. 698. Information required includes the hourly consumption profile of directly connected power generation facilities.

Customers are advised that capacity may become available as the nomination and confirmation process continues throughout the day.

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



Download File: AGT Pipeline Conditions for 10/14/2021.pdf


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