Horizon Pipeline Notice 45708

HORIZON PIPELINE – ADVISORY ACTION

Due to the impending colder weather and current system operating conditions, effective for Saturday, January 18, 2025, at 9:00 am., and continuing until further notice, per Horizon's tariff [GT&C Section 34.5], Shippers and Point Operators are advised to limit hourly takes at ALL DELIVERY POINTS on Horizon's Pipeline System.  Should Horizon's ability to provide hourly flexibility decrease, an Operational Flow Order (OFO) condition will occur. 

As provided in the tariff, at each delivery point on Horizon, the hourly rights for each Shipper/Point Operator, will be limited.  Such hourly rights will be limited by service priority and nomination cycle, based on hours remaining in the gas day.  Shippers and Point Operators are responsible for calculating and monitoring their hourly usage so as not to exceed the limits described herein.

 

Hourly Rights for Firm Service – 150%

Includes Primary and Secondary Confirmed Nominations and Unused No-Notice firm service rights

 

            Timely/Evening Cycles

Limited to 6.25% (150% / 24 hours) of Shipper's Firm Service. 

 

Intra-Day 1 Cycle

Limited to the hourly rights computed in the previous cycle for Firm Service; plus 7.895%   (150% / 19 hours) of the difference of current cycle Firm Service minus prior cycle Firm Service. 

 

Intra-Day 2 Cycle

Limited to the hourly rights computed in the previous cycle for Firm Service; plus 10.00%   (150% / 15 hours) of the difference of current cycle Firm Service minus prior cycle Firm Service. 

 

Intra-Day 3 Cycle

Limited to the hourly rights computed in the previous cycle for Firm Service, plus 13.64% (150% / 11 hours) of the difference of current cycle Firm Service minus prior cycle Firm Service.

 

 

Hourly Rights for Interruptible Service – 105%

Includes Interruptible and AOR nominations, as well as POA tolerances

 

Timely/Evening Cycles

Limited to 4.375% (105% / 24 hours) of Interruptible Service. 

 

Intra-Day 1 Cycle

Limited to the hourly rights computed in the previous cycle for Interruptible Service; plus

5.53% (105% / 19 hours) of the difference of current cycle Interruptible Service minus prior cycle Interruptible Service. 

 

 

 

 

Intra-Day 2 Cycle

Limited to the hourly rights computed in the previous cycle for Interruptible Service; plus     7.0% (105% / 15 hours) of the difference of current cycle Interruptible Service minus prior cycle Interruptible Service. 

 

Intra-Day 3 Cycle

Limited to the hourly rights computed in the previous cycle for Interruptible Service; plus   9.55% (105% / 11 hours) of the difference of current cycle Interruptible Service minus prior cycle Interruptible Service.

 

 

Limitation on Nominations in All Cycles for Firm and Interruptible Service

 

Shippers are advised that nominations should be received by Timely/Evening Cycle in order to utilize full rights over 24 hours, to avoid exceeding the 24 hour ratable hourly takes calculation.  In all cases, any first time nominations received on Non-Timely Cycles for full MDQ utilization rights, plus any scheduled ITS nominations must conform to the 24 hour ratable calculation.  Shipper's hourly rights based on firm MDQ, plus interruptible nominations, must be adequate enough to accommodate the calculated hourly rights for the remaining hours of the gas day.  Specifically, hourly rights cannot exceed 150% / 24 hours of Shipper's MDQ on the nominated contract, plus 105% / 24 hours of Shipper's interruptible nominations.

Please contact your Account Director or Scheduling Representative if you have any questions.