Choose a Supplier
You can choose who supplies the electricity delivered to you by CMP. The bill you receive has two parts: delivery and supply. CMP is your electricity delivery company and facilitates billing for independent suppliers, maintains wires and poles, reads your meter, and restores power during an outage.
CMP Vice President of Customer Service, Linda Ball explains the rates on your bill in this video
Shop for Electricity Providers
Competitive electricity providers (CEPs or suppliers) supply power to Maine homes and businesses. To find out if you can get a more affordable price, please contact these suppliers directly. You may be able to find a supplier with a lower price than the Standard Offer. We are prohibited by law from recommending electricity suppliers to customers. For a list of licensed providers, please visit the MPUC web site or call the Maine Public Utilities Commission at 207.287.3831.
Please note: if you wish to make a payment directly to your competitive electricity provider, please send a separate payment to their address. Please do not include it in your return envelope.
Now, thanks to your smart meter, you may also provide suppliers a view of your hourly usage by enrolling in the Electricity Supplier Marketplace. Licensed electricity suppliers may use that information to offer you pricing plans and programs customized for the way you use electricity.
The Maine law that created electric competition on March 1, 2000, provides that any customer who does not designate a Competitive Electricity Provider for their electric-energy supply will receive Standard Offer service arranged by the state.
Standard Offer
All customers are entitled to purchase energy from a state-approved Standard Offer supplier if they do not choose to enroll with and buy/purchase energy from an approved Competitive Electricity Provider (CEP). Any customer who does not designate a Competitive Electricity Provider for their electric-energy supply will receive Standard Offer service.

This drawing above illustrates the Maine electric delivery system.
Additional information
Standard Offer Frequently Asked Questions
The Maine law that created electric competition on March 1, 2000, provides that any customer who does not designate a Competitive Electricity Provider for their electric-energy supply will receive Standard Offer service arranged by the state.
Under terms of the law, we no longer sell electricity. We deliver electricity, maintaining and operating the more than 150 substations and 20,000-plus circuit-miles of power lines required to perform that service.
Electric bills now reflect separate charges for our delivery service, and for each customer's electricity supplier, whether a competitive provider or the Standard Offer. Combining supply and delivery charges on the same bill was determined to be a more convenient option for customers, rather than sending two bills for each month’s service. We will forward the payment for the supply charges to the appropriate supplier.
The Maine Public Utilities Commission (MPUC) accepts bids from competitive electricity suppliers to supply Standard Offer service for our customers who have not designated a competitive electricity supplier.
The Standard Offer price for residential and small business accounts is $ $0.064494 per kilowatt hour (kWh), effective January 1, 2021. This price will stay the same through December 31, 2021. From January 1, 2020 through December 31, 2020, the Standard Offer price for residential and small business accounts was $0.073037 per kWh.
Details on these prices can be found on the MPUC website at these links for medium and large customers, which vary by month.
These classifications are based on the level of peak demand for electricity. This rate classification can be found on the first page of your bill. Small customers (SGS) that have demand of less than 20 kilowatts (kW) and they do not pay a demand charge. Medium customers (MGS) have demands between 20 kW and 400, while large (IGS & LGS) customers have demands greater than 400 kW. Both medium and large customers pay demand charges.