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What is the DDDC Factor and how is it calculated?

Your Dedicated Design Day Capacity (DDDC) Factor is used to calculate your AGL Pass Through Charges. The DDDC Factor is an estimation of the amount of capacity needed to deliver gas to your premise on a very cold day. Atlanta Gas Light (AGL) calculates your DDDC annually, usually in August, by reviewing the past gas consumption and usage pattern at your premise.

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