What is the primary purpose of this 8-K filing?

The primary purpose of this 8-K filing is to disclose that Exelon Corporation will be participating in the Citigroup Power, Gas and Utilities Conference and to reaffirm its adjusted operating earnings guidance for 2007. It also serves to update investors on the recent credit rating downgrade of Commonwealth Edison Company (ComEd) by Standard & Poor's.

What are the updated credit ratings for ComEd?

Following a downgrade by Standard & Poor's on June 1, 2007, ComEd's credit ratings are now: Corporate Credit Rating - BB, Senior Secured Debt - BBB-, Senior Unsecured Debt - B+, and Commercial Paper - B.

Will Exelon be providing new financial guidance or information beyond reaffirming existing guidance?

No, Exelon will be reaffirming its previously issued adjusted operating earnings guidance for 2007. The materials used in the investor presentation are largely consistent with prior filings, with the exception of the updated credit rating information for ComEd.

What are the implications of ComEd's credit rating downgrade for investors?

A credit rating downgrade, especially to 'BB' and below for corporate credit and secured/unsecured debt, generally indicates an increased risk of default. This could lead to higher borrowing costs for ComEd, potentially impacting its financial performance and its ability to fund operations and investments. Investors should carefully assess the financial health and risks associated with ComEd and Exelon given this information.

EXC 8-K: Regulation FD

Summary

This 8-K filing by Exelon Corporation (EXC) on June 6, 2007, primarily serves as a Regulation FD disclosure, informing investors about an upcoming investor conference participation on June 6-7, 2007. During this event, Exelon will reaffirm its previously issued adjusted operating earnings guidance for 2007 across the consolidated entity and its key subsidiaries: Exelon Generation Company, LLC, Commonwealth Edison Company (ComEd), and PECO Energy Company. The company is also disclosing updated credit rating information for ComEd, which was downgraded by Standard & Poor's (S&P) on June 1, 2007. The updated credit ratings for ComEd include a corporate credit rating of BB, senior secured debt at BBB-, senior unsecured debt at B+, and commercial paper at B. These ratings reflect a notable decrease in ComEd's creditworthiness, which investors should carefully consider. The materials used in these investor presentations are consistent with those previously filed, with the exception of the updated credit rating information.

Key Highlights

1Exelon Corporation will reaffirm its 2007 adjusted (non-GAAP) operating earnings guidance at an investor conference on June 6-7, 2007.
2The reaffirmed guidance applies to Exelon Corporation, Exelon Generation Company, LLC, Commonwealth Edison Company (ComEd), and PECO Energy Company.
3ComEd's short-term and long-term security ratings were downgraded by Standard & Poor's (S&P) on June 1, 2007.
4ComEd's S&P corporate credit rating is now BB.
5ComEd's S&P senior secured debt rating is BBB-.
6ComEd's S&P senior unsecured debt rating is B+.
7ComEd's S&P commercial paper rating is B.

EXELON CORP 8-K Report, Regulation FD Disclosure (Jun 6, 2007)

Summary

Key Highlights

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