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Utility directory
Delmarva Power (the sole IOU with retail choice in DE), Delaware Electric Cooperative, and the 9 DEMEC municipal utilities with service areas and contacts.
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Compare DPSC-licensed competitive electric suppliers serving Delmarva Power customers. Co-op and municipal customers do not have retail choice.
Compare offersWho serves your address
Three utility types in Delaware. Only Delmarva Power's customers can shop a supplier.
Investor-owned · IOU
Delmarva Power
Exelon · sister to Pepco, ACE, BGE
All 3 DE counties: New Castle, Kent, Sussex
Member co-op
Delaware Electric Cooperative
DEC · member-owned
Southern Kent + Sussex counties
Municipal · MLP
9 DEMEC municipals
Dover, Newark, Lewes, Milford…
9 DE city/town footprints
What 2000 changed
SOS or a competitive supplier — only in Delmarva territory
Since 2000, Delmarva Power customers can pick a competitive supplier. Co-op members and municipal customers cannot.
Stay on Standard Offer Service
Delmarva Power's default supply (called SOS) is procured via 3-year laddered auctions, with one-third of the portfolio re-bid each year.
- ✓Smoother rate than annual auction states (NJ, etc.).
- ✓No contract, no termination fee.
- !Still tracks PJM wholesale prices over the medium term.
Pick a competitive supplier
A DPSC-licensed competitive supplier replaces the supply line of your bill. Delivery stays with Delmarva. Compare offers via the DPSC's iChooseEnergy portal.
- ✓Fixed-rate offers + renewable options.
- !Read every contract for variable-after-intro pricing.
Note: retail choice does not apply in DEC or DEMEC municipal footprints.
Save these
DE emergency phone lines
For outages and gas leaks, always call your delivery utility.
Quick answers
The questions DE households ask before calling their utility.
Look at the top of your last bill. Delmarva Power covers most of Delaware — all three counties (New Castle, Kent, Sussex), serving ~309K electric + ~134K gas customers. Delaware Electric Cooperative (DEC) serves ~108K members in southern Kent and Sussex counties. 9 DEMEC municipal utilities (Dover, Newark, Lewes, Milford, New Castle, Smyrna, Seaford, Middletown, Clayton) serve their own city footprints.
Yes if you're a Delmarva Power customer (~309K electric). Delaware opened residential retail choice in 2000. You can pick a DPSC-licensed competitive supplier or stay on Delmarva's Standard Offer Service (SOS). If you're a DEC member or a DEMEC municipal customer, you do not have retail choice — your co-op or city is also your supplier.
SOS is Delmarva's default supply rate, procured via 3-year laddered auctions. The DPSC approves an auction every year for a one-third slice of the SOS portfolio, so the blended rate smooths out wholesale spikes better than annual-auction states. Rates typically update each June 1.
Always your delivery utility, 24/7. Delmarva outage: 1-800-898-8042. Delaware Electric Cooperative: 1-855-332-9090. For DEMEC municipal customers (Dover, Newark, Lewes, etc.), call your city utility number.
The Delaware Municipal Electric Corporation is a joint-action agency that pools wholesale generation procurement for the 9 DE municipal utilities (Dover, Newark, Lewes, Milford, New Castle, Smyrna, Seaford, Middletown, Clayton). Customers in those cities buy their power from their city utility, which buys from DEMEC. There's no retail choice in that chain.
The Delaware Public Service Commission (DPSC) regulates Delmarva Power's delivery rates, licenses competitive suppliers and approves SOS auctions. The Division of the Public Advocate represents residential ratepayers in rate cases. DEC's rates are set by member-elected board. Municipal utility rates are set by city council.
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