Enbridge Gas of any changes to the information that they had initially provided.

Upon receipt of such notification, Enbridge Gas will process the change within its billing systems effective at either the start of the next calendar month, or the next compliance period, whichever is applicable.

FORECAST 2021 FACILITY VOLUME AND FACILITY CARBON CHARGE COST

This results in an associated forecast 2021 Facility Carbon Charge cost of $5.93 million. Facility Volumes are based on the amount of natural gas required for Enbridge Gas to operate its facilities as well as the emissions resulting from the distribution of natural gas. Facility Volumes are composed of: (i) Company Use Volumes including distribution buildings, boilers/line heaters, and NGV fleet volumes (which are subject to the Federal Carbon Charge under Part 1 of the GGPPA) for the period of April 1, 2021 to March 31, 2022; and, (ii) transmission and storage compression volumes (which are subject to the OBPS as Enbridge Gas’s transmission and storage system is a “covered facility” under Part 2 of the GGPPA) for the period of January 1, 2021 to December 31, 2021. The parameters underpinning Enbridge Gas’s estimated OBPS Compliance Obligation can be found at Exhibit B, Appendix A. The forecast 2021 Facility Volume and associated Facility Carbon Charge cost estimate are subject to change based on actual Facility Volumes.

8 Calculated as: Exhibit B, Tab 1, Schedule 2, Col. 1, Line 6 + Exhibit B, Tab 2, Schedule 2, Col. 1, Line 6.