Description: This combined area and line chart illustrates quarterly throughput and capacity at four key points from 2016 to 2021. All gas production must pass through these key points before being exported. They are: West Gate and East Gate on the NGTL system, at the Canada/U.S. border of the Alliance Pipeline, and at the Huntingdon/Fortis BC Lower Mainland key point on the Westcoast Pipeline. At times, throughput can exceed reported available capacity because of changes that occur between when the available capacity was reported and shipments occur (for example ambient temperatures, unplanned outages and downstream constraints). To see an animated version of this graph, click here.
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