The PSC commission staff has responded to dozens of high bill complaints from Delmarva Power customers in January. The primary driver for the high bills are the colder weather this January compared to last January. Delmarva Power redesigned their bill to increase transparency by showing various components of a customer’s bill in a graphical format.  The pie chart on page one of the bill shows delivery and supply (electric and/or natural gas) charges. This change was implemented in November 2024, and may have added to customer confusion.  Note that no new delivery rate have been implemented this winter, but this is the first time the bill is showing those charges separately on page 1.  Delivery charges represent the cost of providing service to a customer, and include infrastructure costs such as pipes, wires, poles, transformers, meters and other equipment as well personnel costs incurred by a utility.  Supply charges are the cost of the commodity itself, either electricity or natural gas. Supply charges are a pass through cost for utilities; they do not earn a profit on the supply charges. Customers should contact Delmarva Power if they have questions regarding their monthly bill.