A PHI Company

We're connected to you by more than power lines.


Standard Offer Service

Overview – Delaware law requires Delmarva Power to use a competitive bidding process to buy electricity for customers who do not choose another electricity supplier.  Customers are charged for this service—called Standard Offer Service (SOS)—under rates approved by the Delaware Public Service Commission to permit recovery of Delmarva's cost of purchasing power at competitive wholesale market prices. SOS is the default electric supply service provided by Delmarva Power.