STS Storage Transportation Service

Description of Service:

  • Service used for load balancing purposes allowing injections and withdrawals at storage locations

Key Features and Benefits:

  • Allows a long-haul FT or MFP contract holder, in combination with their STS contract, to meet seasonal market and storage requirements and still keep a high load factor
  • Flexibility features include renewal rights and additional nomination windows to better balance daily gas supply and consumption

How to Access this Service:

  • Bid for service through a TC Energy held Open Season. Notices are posted on the TC Energy website and detail the capacity offered as well as the bidding process. 
  • Shipper must sign an STS contract for the accepted bid with TC Energy.
  • Shipper must also have a long-haul FT or MFP contract with TC Energy to the shipper’s market point.

For Further Information

Contact your Marketing Representatives, or via any of the options listed below.


The Pipe Line: 1.403.920.PIPE (7473)




Service Priority Injections and withdrawals are firm dependent on season and location of market vs storage
Renewal Rights  Renewal minimum 1 year
1 years' notice required
Build TC Energy will build facilities with a minimum 15 year contract term

Ability to convert to STS-L or EMB
8 nomination windows

Access Open Season
Awarded based on term x toll
Must also hold a long-haul FT or MFP contract to the market location
Term Minimum term is 1 year
Toll Monthly STS demand toll



Please Note:
This service description is for informational purposes only. For more detailed descriptions, please review the Transportation Tariff which provides complete detail and supersedes the information provided on this page.

Related Information

Credit Procedures