What is the biggest electric company in Maryland?

Baltimore Gas & Electric Co had the most customers in Maryland in 2025, about 1,349,562.

How do I find which utility serves my address in Maryland?

Open your county page from the Maryland energy overview. It lists the utilities that report serving each county. Your power bill also names your utility.

Checked Oct 30, 2026

Electric Utilities in Maryland

22 utilities and 67 retail electricity providers reported sales in Maryland for 2025 (EIA Form 861).

Utilities

Customers in this state. Home price and bill are for bundled service (generation and delivery)

Swipe the table sideways to see more columns.

#	Utility	Customers	Home price	Home bill
1	Baltimore Gas & Electric CoInvestor Owned	1,349,562	20.19¢/kWh	$177/mo
2	Potomac Electric Power CoInvestor Owned	608,566	21.74¢/kWh	$182/mo
3	The Potomac Edison CompanyInvestor Owned	293,563	15.44¢/kWh	$172/mo
4	Delmarva PowerInvestor Owned	216,843	21.81¢/kWh	$214/mo
5	Southern Maryland Elec Coop IncCooperative	179,937	16.43¢/kWh	$192/mo
6	Choptank Electric Cooperative, IncCooperative	57,450	17.11¢/kWh	$200/mo
7	Tesla Inc.Behind the Meter	26,916	16.10¢/kWh	$100/mo
8	Sunrun Inc.Behind the Meter	25,906	19.50¢/kWh	$108/mo
9	Hagerstown Light DepartmentMunicipal	17,780	11.23¢/kWh	$106/mo
10	Easton Utilities CommMunicipal	11,316	15.18¢/kWh	$159/mo
11	Thurmont Municipal Light CoMunicipal	2,914	Not reported	Not reported
12	Town of Berlin - (MD)Municipal	2,756	Not reported	Not reported
13	Town of Williamsport - (MD)Municipal	1,026	Not reported	Not reported
14	EverBright, LLCBehind the Meter	861	17.37¢/kWh	$148/mo
15	Palmetto Solar, LLCBehind the Meter	819	19.75¢/kWh	$88/mo
16	Spruce FinanceBehind the Meter	577	12.59¢/kWh	$85/mo
17	A & N Electric CoopCooperative	293	14.54¢/kWh	$125/mo
18	Constellation Solar Holding, LLCBehind the Meter	18	Not reported	Not reported
19	Ahana Renewables, LLCBehind the Meter	16	Not reported	Not reported
20	TerraForm US Energy Services, LLCBehind the Meter	7	Not reported	Not reported
21	Greenbacker Renewable Energy CorporationBehind the Meter	1	Not reported	Not reported
22	SunnovaBehind the Meter	Not reported	Not reported	Not reported

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Retail electricity providers

Companies that sell electricity supply while the local utility delivers it

Swipe the table sideways to see more columns.

Provider	Customers	Home price	Home bill
Constellation NewEnergy, IncRetail Power Marketer	82,572	Not reported	Not reported
WGL Energy Services, Inc.Retail Power Marketer	31,407	Not reported	Not reported
Inspire Energy Holdings, LLCRetail Power Marketer	12,263	Not reported	Not reported
Direct Energy ServicesRetail Power Marketer	10,789	Not reported	Not reported
Just Energy Solutions Inc.Retail Power Marketer	9,711	Not reported	Not reported
IDT Energy, Inc.Retail Power Marketer	6,341	Not reported	Not reported
CleanChoice Energy, Inc.Retail Power Marketer	6,194	Not reported	Not reported
Reliant Energy Northeast LLCRetail Power Marketer	5,806	Not reported	Not reported
MPower Energy NJ LLCRetail Power Marketer	4,348	Not reported	Not reported
SFE Energy Maryland, Inc.Retail Power Marketer	4,330	Not reported	Not reported
Xoom Energy Maryland, LLCRetail Power Marketer	3,462	Not reported	Not reported
Direct Energy BusinessRetail Power Marketer	2,708	Not reported	Not reported
AEP EnergyRetail Power Marketer	2,492	Not reported	Not reported
Titan Gas LLCRetail Power Marketer	2,330	Not reported	Not reported
Hudson Energy ServicesRetail Power Marketer	2,268	Not reported	Not reported
Palmco Power MD, LLCRetail Power Marketer	2,120	Not reported	Not reported
American Power & GasRetail Power Marketer	1,903	Not reported	Not reported
Public Power & Utility of Maryland, LLCRetail Power Marketer	1,408	Not reported	Not reported
AP Holdings LLCRetail Power Marketer	1,346	Not reported	Not reported
Stream Energy Maryland, LLCRetail Power Marketer	1,248	Not reported	Not reported
Ambit Energy Holdings, LLCRetail Power Marketer	1,200	Not reported	Not reported
Major Energy Electric ServicesRetail Power Marketer	1,180	Not reported	Not reported
Rushmore Energy, LLCRetail Power Marketer	1,151	Not reported	Not reported
Champion Energy ServicesRetail Power Marketer	1,084	Not reported	Not reported
Think Energy, LLCRetail Power Marketer	1,047	Not reported	Not reported
Interstate Gas Supply, Inc.Retail Power Marketer	1,042	Not reported	Not reported
Engie Resources LLCRetail Power Marketer	995	Not reported	Not reported
Greenlight Energy Inc.Retail Power Marketer	959	Not reported	Not reported
Energy Services Providers, IncRetail Power Marketer	838	Not reported	Not reported
StateWise Energy Maryland LLCRetail Power Marketer	789	Not reported	Not reported
Median Energy Corp.Retail Power Marketer	756	Not reported	Not reported
Green Mountain Energy CompanyRetail Power Marketer	748	Not reported	Not reported
Freepoint Energy Solutions LLCRetail Power Marketer	640	Not reported	Not reported
Eligo Energy, LLCRetail Power Marketer	633	Not reported	Not reported
Energy Plus Holdings LLCRetail Power Marketer	626	Not reported	Not reported
NextEra Energy Services, LLCRetail Power Marketer	540	Not reported	Not reported
Viridian Energy PA LLCRetail Power Marketer	533	Not reported	Not reported
CPV Retail Energy LPRetail Power Marketer	417	Not reported	Not reported
Atlantic Energy LLCRetail Power Marketer	382	Not reported	Not reported
Spark Energy, LPRetail Power Marketer	369	Not reported	Not reported
Powervine EnergyRetail Power Marketer	324	Not reported	Not reported
New Wave Energy CorporationRetail Power Marketer	312	Not reported	Not reported
Alpha Gas and Electric, LLCRetail Power Marketer	311	Not reported	Not reported
SmartestEnergy US LLCRetail Power Marketer	303	Not reported	Not reported
Nordic Energy Services, LLCRetail Power Marketer	292	Not reported	Not reported
Horizon Power and Light, LLCRetail Power Marketer	272	Not reported	Not reported
National Gas & Electric, LLCRetail Power Marketer	262	Not reported	Not reported
RPA Energy, Inc.Retail Power Marketer	223	Not reported	Not reported
Energy Harbor Corp.Retail Power Marketer	217	Not reported	Not reported
Clearview Electric Inc.Retail Power Marketer	184	Not reported	Not reported
MidAmerican Energy Services, LLCRetail Power Marketer	143	Not reported	Not reported
Discount Power Inc - (CT)Retail Power Marketer	137	Not reported	Not reported
Spring Energy RRH LLCRetail Power Marketer	131	Not reported	Not reported
MP2 Energy LLCRetail Power Marketer	113	Not reported	Not reported
Ugi Energy Services, LLCRetail Power Marketer	95	Not reported	Not reported
Park Power LLCRetail Power Marketer	80	Not reported	Not reported
Texas Retail Energy, LLCRetail Power Marketer	73	Not reported	Not reported
Agressive Energy LLCRetail Power Marketer	67	Not reported	Not reported
Shipley Choice, LLCRetail Power Marketer	61	Not reported	Not reported
BP Energy Retail LLCRetail Power Marketer	52	Not reported	Not reported
Engie Power & Gas LLCRetail Power Marketer	52	Not reported	Not reported
Calpine Energy Solutions, LLCRetail Power Marketer	40	Not reported	Not reported
North American Power and Gas, LLCRetail Power Marketer	35	Not reported	Not reported
Town Square Energy East, LLCRetail Power Marketer	9	Not reported	Not reported
American PowerNetRetail Power Marketer	1	Not reported	Not reported
Brookfield Renewable Energy Marketing US LLCRetail Power Marketer	1	Not reported	Not reported
Talen Energy Marketing, LLCRetail Power Marketer	1	Not reported	Not reported

Show all 67Show fewer

Small utilities that file the short form (EIA-861S) report only total sales, so their home price and bill are not reported.

Frequently asked questions

What is the biggest electric company in Maryland?: Baltimore Gas & Electric Co had the most customers in Maryland in 2025, about 1,349,562.
How do I find which utility serves my address in Maryland?: Open your county page from the Maryland energy overview. It lists the utilities that report serving each county. Your power bill also names your utility.

Source: U.S. Energy Information Administration, Form EIA-861 (2025) · Data for 2025

Data sources

Form EIA-861 Annual Electric Power Industry ReportU.S. Energy Information Administration · Official site

Data for 2025

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