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Baltimore Gas and Electric Company Upgrading Customer Billing and Information System New account numbers for all customers; additional changes for specific customer groups Utility to extend payment due dates and address related fees for individual customers who advise BGE they are unable to pay their bill on time due to system unavailability

BALTIMORE, Jan. 6, 2012 - Baltimore Gas and Electric Company (BGE)today announced that it is implementing a large-scale initiative to update several legacy billing and customer information systems- the first such wholesale upgrade in more than 20 years. BGE's Customer Care and Billing System (CC&B) will provide an integrated, single source for customer information and will enable customer
account representatives to access customer information more efficiently. The upgrade is a necessary step in enhancing BGE's overall system architecture, which will, in turn, provide customers with better access to tools for using energy more efficiently and reducing energy costs.