For October 2026, published residential base supply and transmission charges range from 13.077¢ to 15.284¢ per kilowatt-hour (kWh) across these three utilities.
Before comparing electricity suppliers, identify your utility and check the applicable Price to Compare on your latest bill.
Start With the Utility Assigned to Your Address
Gaithersburg-area properties may receive electricity distribution service from:
PEPCO: Serves most of Montgomery County.
BGE: Serves parts of Montgomery County.
Potomac Edison: Covers portions of Montgomery County.
The City of Gaithersburg's utility information identifies these electricity companies.
You cannot choose which utility delivers electricity to your property. Your location determines its service territory. However, eligible customers may choose a separate retail electricity supplier.
This distinction is important when comparing Gaithersburg electricity rates. A PEPCO customer should not use BGE or Potomac Edison charges as their personal comparison benchmark.
How the Three Utilities' Electricity Charges Compare
The following figures show each utility's published residential base charges for October 2026.
Electricity charge | PEPCO | BGE | Potomac Edison |
Supply | 12.681¢ | 12.962¢ | 12.681¢ |
Transmission | 2.101¢ | 2.322¢ | 0.396¢ |
Supply + transmission | 14.782¢ | 15.284¢ | 13.077¢ |
Distribution | 4.328¢ | 4.945¢ | 2.287¢ |
EmPOWER surcharge | 2.0618¢ | 1.310¢ | 1.376¢ |
Monthly customer charge | $8.44 | $10.00 | $6.00 |
Source: Maryland Office of People's Counsel. Published October 2026 residential base rates. All per-kWh figures are in cents; customer charges are monthly.
These figures are not complete electricity prices. Additional adjustments, taxes, and applicable fees can affect the final bill.
The lowest combined supply and transmission figure in the table belongs to Potomac Edison, but that does not mean every Gaithersburg household can receive service at that rate. Only the figures for the utility assigned to your address apply.
What Does Your Price to Compare Tell You?
Your utility's Price to Compare provides a benchmark for evaluating a competitive electricity supplier's offer.
It helps you assess whether another supply contract may cost less than your current default arrangement.
When comparing prices, use the same billing period and electricity consumption. Also check whether the advertised supplier rate includes all relevant supply costs or whether additional fees apply.
For example, a difference of 1¢ per kWh equals $10 over 1,000 kWh of electricity use, before additional charges.
Maryland's Standard Offer Service (SOS) provides the default electricity supply when a customer hasn't selected another retail supplier. Its prices are established through competitive procurement overseen by the Public Service Commission.
Before You Sign an Electricity Supply Contract
Maryland residents can choose licensed retail electricity suppliers, but an alternative contract isn't automatically cheaper than Standard Offer Service.
Review these details before enrolling:
Rate structure: Check whether the advertised price is fixed or variable.
Contract duration: Understand how long the agreed price applies.
Additional fees: Look for monthly charges and early cancellation costs.
Renewal conditions: Check whether the price or agreement changes after expiration.
Supplier licensing: Verify the company's Maryland licence before providing enrollment authorization.
Retail suppliers set their own prices, which may be higher or lower than the utility's SOS rate. The Maryland consumer information on retail suppliers explains the differences and what customers should review before signing.
Through 97 Options, you can start checking electricity comparison availability for your Gaithersburg ZIP code and review eligible options where offered.
Gaithersburg ZIP Codes Don't Always Match City Boundaries
The City of Gaithersburg identifies four commonly associated ZIP codes:
ZIP code | Postal area |
20877 | Gaithersburg |
20878 | Gaithersburg |
20879 | Gaithersburg |
20882 | Gaithersburg |
However, not every address using one of these ZIP codes falls within the incorporated city limits.
The city provides an official address search and boundary information to help residents establish whether their property is actually within Gaithersburg.
For electricity comparisons, use the full service address rather than relying on the postal ZIP code alone.
Setting Up Electricity When Moving to Gaithersburg
If you're moving into a new property, first identify the utility serving that address. Then arrange the electricity account and service start date with the assigned company.
Selecting a competitive supplier is a separate decision. If you already have a supplier contract, check its expiration date and cancellation conditions before arranging a change.
Changing retail suppliers does not replace the local utility or its distribution network.
Compare Electricity Information in Nearby Maryland Cities
You can also explore electricity rates in Rockville for additional Montgomery County comparisons.
The applicable utility and electricity charges should always be confirmed for your own address.
Check Electricity Options for Your Gaithersburg Address
Your electricity bill can help you identify the utility, current supply arrangement, and monthly consumption needed for a meaningful comparison.
With 97 Options, you can begin checking electricity plan availability for your Gaithersburg ZIP code and review eligible supplier choices where offered.
Compare the applicable rates and contract terms before deciding whether another supply arrangement suits your needs.
Check Electricity Plans by ZIP Code
Rates reflect published October 2026 data. Actual electricity costs and available supplier plans may vary by utility, service address, and usage.
