• Standard Office Service

  • Maryland

    We are required to buy electricity for customers who do not choose an alternative electricity supplier. Customers are charged for electricity - called Standard Offer Service (SOS) - under rates approved by the Maryland Public Service Commission. Under a settlement with the Commission, we began offering SOS supply at market-based rates in Maryland on June 1, 2004.

    Each year in June and October, supply rates are adjusted to reflect the cost of power that we buy on behalf of our customers who do not contract with an alternative supplier.

    For Maryland residential customers, the new summer SOS rate will decrease the average monthly supply cost by about $10.00 beginning June 1, 2014. Also, in October when the new winter SOS rates take effect in Maryland, the average monthly supply cost will decrease by about $4.00. Combined, the new summer and winter supply rates will decrease supply costs by about $6.00.

    Maryland Electric Tariffs Effective June 1, 2014

    Frequently Asked Questions - Maryland Standard Offer Service