Customer Managed Service (CMS)


A non-obligated supply option at Dawn

Service description

  • Customer Managed Service (CMS) gives Rate T2 customers a non-obligated supply option at Dawn to balance their daily supply with their end-use consumption.
  • The customer takes responsibility for their natural gas purchase, daily nominations, and managing their storage and/or Daily Variance Account (DVA).

Learn more

For more information, call your Union Gas account manager or send us an email.

Customer type

  • CMS is designed for new and existing South T2 customers who would like non-obligated supply at Dawn (excludes power generation customers with new or incremental demands in excess of 1,200,000 m3/day).

Benefits

  • Customers have increased flexibility when managing their gas supply and are not obligated to provide their daily supply at Dawn when it’s not required.
  • Access to storage space up to a customer’s firm contracted demand (CD) multiplied by a factor of 9.
  • A DVA equal to a customer’s firm CD to manage daily imbalances between delivered supply, storage activity and actual consumption.
  • Access to storage injection and withdrawal entitlements of 1.2 per cent of the customer’s contracted annual firm storage space.
  • Ability to transfer gas between the firm storage account and the Daily Variance Account during an interruption of service.

Service availability

  • Union Gas service area in southern Ontario.
A map of the Union Gas Service Area in Southern Ontario

A legend for the map of the Union Gas Service Area in Southern Ontario.

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Operations Centre & Pipeline Interconnect
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Pipeline Interconnect
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Transmission Line
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Distribution Line
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TransCanada Pipeline