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Frequently Asked Questions - This Week

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Answers to Frequently Asked Questions are provided in this section.

The first posting of FAQs is in August. The last posting of FAQs is in the latter part of January, after bidders are registered to participate in the Auctions. From that point through the close of the Auctions, questions and answers are emailed directly to Registered Bidders and are not posted to the BGS Auction website. Questions that are not from Registered Bidders or their advisors are answered strictly as time permits.

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FAQ-109

What is the purpose of the Hourly De-Rating Factors posted to the Monthly Data page of the BGS Auction website.


Generally, the load data on the BGS Data Room is at the wholesale level.  All hourly load data series include applicable transmission as well as distribution losses.  However, hourly load data must be adjusted by the Hourly De-Rating Factors in order to achieve settlement loads. Hourly De-Rating Factors are used for settlement purposes per PJM’s implementation of its marginal loss methodology. For information about PJM’s implementation of its marginal loss methodology, please contact PJM.

1/23/2025, in Data.

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